GOST R ISO 3580-2009

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  ГОСТ Р ИСО 3580-2009

GOST R ISO 3580−2009 Materials welding. The covered electrodes for manual arc welding high-temperature steels. Classification

GOST R ISO 3580−2009

Group В05

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

Materials welding

THE COVERED ELECTRODES FOR MANUAL ARC WELDING HIGH-TEMPERATURE STEELS

Classification

Welding consumables. Covered electrodes for manual metal arc welding of creep-resisting steels. Classification

OKS 25.160.20

Date of introduction 2011−01−01

Preface

The objectives and principles of standardization in the Russian Federation established by the Federal law of 27 December 2002 N 184-FZ «On technical regulation», and rules for the application of national standards of the Russian Federation — GOST R 1.0−2004 «Standardization in the Russian Federation. The main provisions"

Data on standard

1 PREPARED by the Federal state institution «Scientific-educational center «welding and control» at MGTU im. N. Uh. Bauman (FGU «NORSK» at MSTU. N. Uh. Bauman), the National Agency for Control and Welding (NAKS) and Saint-Petersburg state Polytechnical University (SPbSTU) on the basis of their own authentic translation of the standard referred to in paragraph 4

2 SUBMITTED by the Technical Committee for standardization TC 364 «welding and allied processes"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology of December 15, 2009 N 787-St

4 this standard is identical to international standard ISO 3580:2004* «Materials and welding. The covered electrodes for manual arc welding high-temperature steels. Classification» (ISO 3580:2004 «Welding consumables — Covered electrodes for manual metal arc welding of creep-resisting steels — Classification»).

In applying this standard it is recommended to use instead of the referenced international standards corresponding national standards, the details of which are given in Appendix YES

5 INTRODUCED FOR THE FIRST TIME


Information about the changes to this standard is published in the annually issued reference index «National standards», and the text changes and amendments — in monthly indexes published information «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in a monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

Introduction

International standard ISO 3580 prepared by Technical Committee ISO/TC 44 «welding and allied processes», Subcommittee 3 «Materials welding».

The third edition cancels and replaces the second edition which has been technically revised.

ISO/DIS 3580 establishes methods for classification of covered electrodes chemical composition of weld metal (method A) and the limit of the tensile strength and chemical composition (method b).

It should be noted that the mechanical properties of samples from the weld metal used to classify the electrodes will vary from the mechanical properties of the samples obtained in the manufacture of welded joints, due to differences in the technology of welding the diameter of the electrode, the amplitude of oscillations of the electrode, position of welding and the chemical composition of the material.

1 Scope

This standard specifies requirements for classification of covered electrodes, based on tests of the thermally treated weld metal for manual arc welding of ferritic and martensitic high-temperature and low-alloy steels, operating at elevated temperatures.

This standard contains the technical requirements for classification, using methods based on the chemical composition of the weld metal, with requirements for the yield strength of the weld metal and the average impact energy of 47 j (method A) and the limit of the tensile strength and chemical composition of the weld metal (method b).

Notes

1 Sections, subsections and tables of numbers that ends with the letter «A» are applicable only to electrodes classified according to chemical composition with requirements for yield strength of the weld metal and the average impact energy of 47 joules.

2 Sections, subsections and tables of numbers that ends with the letter «b» are applicable only to electrodes classified by tensile strength tensile and chemical composition of the weld metal.

3 Sections, subsections and tables of numbers that have the letter designations «A» or «b» applicable to all covered electrodes classified under this standard.


For comparison, some tables include requirements for electrodes classified according to both methods. In these tables, the electrodes of two different classifications, having a close composition and properties located on adjacent rows. In the string table, required for one classification, a designation similar to the electrode of another classification are in parentheses. In certain cases it is possible to produce electrodes which can be classified by both methods. In this case, the electrodes and (or) their packaging can be marked in one of two or both of two ways.

2 Normative references

In this standard used by dated or undated references to international standards*. With dated references subsequent edition of the international standards or changes to them are valid for this standard only after the introduction of the amendments to this standard or by preparing a new edition of this standard. With undated references the latest edition of the listed standard (including amendments).

ISO 31−0-1992 Quantities and units of measurement. Part 1. General principles* (ISO 31−0:1992 Quantities and units — Part 0: General principles*)

_________________

* Canceled and replaced by ISO 80000−1.


ISO 544 welding Materials. Technical delivery conditions for filler materials. Type of product, dimensions, tolerances and markings (ISO 544 Welding consumables — Technical delivery conditions for welding filler materials — Type of product, dimensions, tolerances and markings)

ISO 2401 covered Electrodes. The performance of the surfacing, the ratio of the transition metal and the deposition rate (ISO 2401, Covered electrodes — Determination of the efficiency, metal recovery and deposition coefficient)

ISO 3690 welding and allied processes. Determination of hydrogen content in the weld metal in arc welding of ferritic steels (ISO 3690 Welding and allied processes — Determination of hydrogen content in ferritic steel arc weld metal)

ISO 6847 welding Materials. The surfacing layer of metal for chemical analysis (ISO 6847 Welding consumables — Deposition of a weld metal pad for chemical analysis)

ISO 6947 Welds welded. The operating positions. Definition of angles of slope and rotation (ISO 6947 Welds — Working positions — Definitions of angles of slope and rotation)

ISO 13916 welding. Manual on the measurement of preheating temperature, temperature of the metal between weld passes and the temperature of the associated heating (ISO 13916 Welding — Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature)

ISO 14344 welding and allied processes. The processes of electric welding under flux and in shielding gases. Recommendations for the purchase of welding consumables (ISO 14344 Welding and allied processes — Flux and gas shielded electrical welding processes — Procurement guidelines for consumables)

ISO 15792−1 welding Materials. Test methods. Part 1. Test methods samples of the weld material during welding of steel, Nickel and Nickel alloys (ISO 15792−1 Welding consumables — Test methods — Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys)

ISO 15792−3 Materials welding. Test methods. Part 3. Classification testing of welding materials for the welding position and weld the root pass in fillet welds (ISO 15792−3 Welding consumables — Test methods — Part 3: Classification testing of positional capacity and root penetration of welding consumables in a fillet weld)

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or published annually by the information sign «National standards» published as on January 1 of the current year and related information published monthly indexes published in the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Classification

This standard uses two classification methods for specifying the composition and properties of the weld metal obtained by this electrode. Both methods include additional symbols to indicate some other classification requirements. In most cases the electrode can be classified by both methods. In these cases you can use either one of the classification symbols, or both.

The classification includes the properties of the weld metal obtained with a covered electrode as given in 3A and 3B. Classification is based on the use of electrode with a diameter of 4.0 mm, taken at ISO 15792−3.

3A Classification by chemical composition

The classification marking consists of six characters:

1) first symbol-covered electrode;

2) the second symbol of the chemical composition of the weld metal (see table 1);

3) third symbol-type of electrode covering (see 4.4 A);

4) the fourth symbol of the effective transfer of the metal electrode (the ratio of the mass of metal, deposited under standard conditions to the mass of the electrode rod) and type of current (see table 4A);

5) the fifth symbol position of the weld (see table 5A);

6) the sixth symbol of hydrogen content in the deposited metal (see table 6).


Table 1 — Symbol for chemical composition of weld metal

Symbol chemical compositionin accordance with the classification		Chemical composition, % (by weight)
chemical composition GOST R ISO 3580-A	the limit of the tensile strength and chemical composition of GOST R ISO 3580-B	With	Si	Mn	R	S	Cr	Mo	V	Other items
Mo	(1M3)	0,10	0,80	0,40- 1,50	0,030	0,025	0,20	0,40- 0,70	0,03	-
(Mo)	1M3	0,12	0,80	Of 1.00	0,030	0,030	-	0,40- 0,65	-	-
MoV		0,03- 0,12	0,80	0,40- 1,50	0,030	0,025	0,30- 0,60	0,80- 1,20	0,25- 0,60	-
CrMo0,5	(CM)	0,05- 0,12	0,80	0,40- 1,50	0,030	0,025	0,40- 0,65	0,40- 0,65	-	-
(CrMo0,5)	CM	0,05- 0,12	0,80	0,90	0,030	0,030	0,40- 0,65	0,40- 0,65	-	-
	С1М	0,07- 0,15	0,30- 0,60	0,40- 0,70	0,030	0,030	0,40- 0,60	1,00- 1,25	0,05	-
СгМо1	(1CM)	0,05- 0,12	0,80	0,40- 1,50	0,030	0,025	0,90- 1,40	0,45- 0,70	-	-
(CrMo1)	1CM	0,05- 0,12	0,80	0,90	0,030	0,030	1,00- 1,50	0,40- 0,65	-	-
CrMo1L	(1CML)	0,05	0,80	0,40- 1,50	0,030	0,025	0,90- 1,40	0,45- 0,70	-	-
(CrMo1L)	1CML	0,05	1,0	0,90	0,030	0,030	1,00- 1,50	0,40- 0,65	-	-
CrMoV1		0,05- 0,15	0,80	0,70- 1,50	0,030	0,025	0,90- 1,30	0,90- 1,30	0,10- 0,35	-
CrMo2	(2C1M)	0,05- 0,12	0,80	0,40- 1,30	0,030	0,025	2,00- 2,60	0,90- 1,30	-	-
(CrMo2)	2C1M	0,05- 0,12	Of 1.00	0,90	0,030	0,030	2,00- 2,50	0,90- 1,20	-	-
CrMo2L	(2C1ML)	0,05	0,80	0,40- 1,30	0,030	0,025	2,00- 2,60	0,90- 1,30	-	-
(CrMo2L)	2C1ML	0,05	1,0	0,90	0,030	0,030	2,00- 2,50	0,90- 1,20	-	-
	2CML	0,05	Of 1.00	0,90	0,030	0,030	1,75- 2,25	0,40- 0,65	-	-
	2C1MV	0,05- 0,15	0,60	0,40- 1,50	0,030	0,030	2,00- 2,60	0,90- 1,20	0,20- 0,40	Nb: 0.01 to 0.05
	3C1MV	0,05- 0,15	0,60	0,40- 1,50	0,030	0,030	2,60- 3,40	0,90- 1,20	0,20- 0,40	Nb: 0.01 to 0.05
CrMo5	(5CM)	0,03- 0,12	0,80	0,40- 1,50	0,025	0,025	4,00- 6,00	0,40- 0,70	-	-
(CrMo5)	5CM	0,05- 0,10	0,90	Of 1.00	0,030	0,030	4,00- 6,00	0,45- 0,65	-	Ni: 0,40
	5CML	0,05	0,90	Of 1.00	0,030	0,030	4,00- 6,00	0,45- 0,65	-	Ni: 0,40
CrMo9	(9C1M)	0,03- 0,12	0,60	0,40- 1,30	0,025	0,025	8,00- 10,00	0,90- 1,20	0,15	Ni: 1,00
(CrMo9)	9C1M	0,05- 0,10	0,90	Of 1.00	0,030	0,030	8,00- 10,50	0,85- 1,20	-	Ni: 0,40
	9C1ML	0,05	0,90	0,050	0,030	0,030	8,00- 10,50	0,85- 1,20	-	Ni: 0,40
CrMo91	(9C1MV)	0,06- 0,12	0,60	0,40- 1,50	0,025	0,025	8,00- 10,50	0,80- 1,20	0,15- 0,30	Ni: 0,40−1,00 Nb: 0,03−0,10 N: 0,02−0,07
(CrMo91)	9C1MV	0,08- 0,13	0,30	1,25	0,010	0,010	8,00- 10,50	0,85- 1,20	0,15- 0,30	Ni: 1,00 Mn+Ni=1,50 max. Cu: 0,25 Al: 0,04 Nb: 0,02−0,10 N: 0,02−0,07
(CrMo91)	9C1MV1	0,03- 0,12	0,60	1,00- 1,80	0,025	0,025	8,00- 10,50	0,80- 1,20	0,15- 0,30	Ni: 1,0 Cu: 0,25 Al: 0,04 Nb: 0,02−0,10 N: 0,02−0,07
CrMoWV12		0,15- 0,22	0,80	0,40- 1,30	0,025	0,025	10,00- 12,00	0,80- 1,20	0,20- 0,40	Ni: 0,80 W: 0,40−0,60
Z	G	Any other agreed composition
The designation in parentheses [e.g., (CrMo1) or (1CM)] indicates a rough but incomplete according the other method designations. The correct description for the given range of chemical composition is the designation without parentheses. Covered electrode can be assigned both designations independently, in the presence of tighter restrictions on the chemical composition, which satisfy both sets of requirements for designation, provided that the requirements for mechanical properties according to table 2 is also satisfied. If the table shows a single value, it means the maximum value. If not specified, the content of Ni and Cu should be less than 0.3% for each element, Nb, not more than 0.01%. The items that are listed without regulation quantities must be specified if they are added intentionally. The total number of such and all the other elements determined by conventional chemical analysis shall not exceed 0,50%.

The classification marking consists of two parts:

a) compulsory part

This part includes characters indicating an electrode, the chemical composition and the type of electrode coating (see 4.1, 4.2 and 4.4 A);

b) an additional part

This part includes symbols indicating efficient transfer of the metal electrode, current type, welding positions for the electrode and the hydrogen content (see 4.5 A, 4.6 A and 4.7).

3B Classification by tensile strength tensile and chemical composition

The classification marking consists of five characters:

1) first symbol-covered electrode;

2) the second symbol of the tensile strength of the weld metal (see table 2);

3) third symbol-type of electrode coating, type of current and welding positions (see table 3B);

4) the fourth symbol of the chemical composition of the weld metal (see table 1);

5) the fifth symbol hydrogen content in the deposited metal (see table 6).

Table 2 — Mechanical properties of the weld metal

Chemical symbol the compositionin accordance Wii with the classification					Impact energy, j, at a temperature +20 °C		Heat treatment of the weld metal
chemistry- Agency part GOST R ISO 3580-A	the limit of the tensile strength and chemical composition GOST R ISO 3580-	Mini Mal tion limit current honor, MPa	Mini no maximum length limit etc- performance in grow- during, MPa	Mini Mal ingcarry- tive. - tion, %	mini maximum average value for three specimens	mini maximum singular value nie	Tempe ture prior tional heating and between the passages, °C	Heat treatment of the sample after welding
								Tempe temperature, °C	Time, min.
Mo	(1M3)	355	510	22	47	38	not more than 200	570−620	60
(Mo)	49ХХ-1M3	390	490	22	-	-	90−110	605−645	60
(Mo)	49YY-1M3	390	490	20	-	-	90−110	605−645	60
MoV		355	510	18	47	38	200−300	690−730	60
CrMo0,5	(55XX-CM)	355	510	22	47	38	100−200	600−650	60
(CrMo0,5)	55ХХ-SM	460	550	17	-	-	160−190	675−705	60
	55ХХ-С1М	460	550	17	-	-	160−190	675−705	60
СгМо1	(55XX-1CM) (5513−1CM)	355	510	20	47	38	150−250	660−700	60
(CrMo1)	55XX-1CM	460	550	17	-	-	160−190	675−705	60
(CrMo1)	5513−1CM	460	550	14	-	-	160−190	675−705	60
CrMo1L	(52XX-1CML)	355	510	20	47	38	150−250	660−700	60
(CrMo1L)	52XX-1CML	390	520	17	-	-	160−190	675−705	60
CrMoV1		435	590	15	24	19	200−300	680−730	60
CrMo2	(62XX-2C1M) (6213−2C1M)	400	500	18	47	38	200−300	690−750	60
(CrMo2)	62ХХ-2С1М	530	620	15	-	-	160−190	675−705	60
(CrMo2)	6213−2C1M	530	620	12	-	-	160−190	675−705	60
CrMo2L	(55XX-2C1ML)	400	500	18	47	38	200−300	690−750	60
(CrMo2L)	55XX-2C1ML	460	550	15	-	-	160−190	675−705	60
	55XX-2CML	460	550	15	-	-	160−190	675−705	60
	62XX-2C1MV	530	620	15	-	-	160−190	725−755	60
	62XX-3C1MV	530	620	15	-	-	160−190	725−755	60
CrMo5	(55XX-5CM)	400	590	17	47	38	200−300	730−760	60
(CrMo5)	55XX-5CM	460	550	17	-	-	175−230	725−755	60
	55XX-5CML	460	550	17	-	-	175−230	725−755	60
CrMo9	(62XX-9C1M)	435	Five hundred ninety	18	34	27	200−300	740−780	120
(CrMo9)	62XX-9C1M	530	620	15	-	-	205−260	725−755	60
	62XX-9C1ML	530	620	15	-	-	205−260	725−755	60
CrMo91	(62XX-9C1MV)	415	585	17	47	38	200−315	745−775	120−180
(CrMo91)	62XX-9C1MV	530	620	15	-	-	200−315	725−755	120
(CrMo91)	62XX-9C1MV1	530	620	15	-	-	205−260	725−755	60
CrMoWV12		550	690	15	34	27	250−350 or 400−500	740−780	120
Z	G	By agreement between the customer and the supplier
The designation in parentheses [e.g., (CrMo1) or (1CM)] indicates a rough but incomplete according the other method designations. The correct description for the given range of chemical composition is the designation without parentheses. Covered electrode can be assigned both designations independently in the presence of tighter restrictions on the chemical composition, which satisfy both sets of requirements for mechanical properties, provided that the requirements for chemical composition according to table 1 are also satisfied. XX indicates the types of coverage 15, 16 or 18. YY indicates the types of coverage 10, 11, 19, 20 or 27 (see table 3B). As the yield strength in the presence of plastic flow is taken by the lower limit of fluidity , otherwise, the conditional yield strength . The initial sample length equal to five diameters of the test sample. Valid only one value is less than the minimum average. The sample should be cooled in a furnace to a temperature of 300 °C at the rate not exceeding 200 °C/h. The deviation (±10) min. The deviation from 0 to 10 min. heating Rate in the furnace must be between 85 °C/HR to 275 °C/h. Immediately after welding the specimen shall cool down to a temperature of from 120 °C to 100 °C, then held at that temperature for at least 1 hour.

Table 3B Symbol for type of covering (classification by tensile strength tensile and chemical composition)

Symbol	Type of coverage	The welding position	Type of current and polarity
10	Pulp	All	d.c. (+)
11	Pulp	All	.with. or d.with. (+)
13	Rutile	All	.with. or d.with. (±)
15	Main	All	d.c. (+)
16	Main	All	.with. or d.with. (+)
18	Basic + iron powder	All except PG	.with. or d.c. (+)
19	Ilmenite	All	.with. or d.with. (±)
20	Iron oxide	RA, RV	.with. or d.with. (-)
27	Iron oxide + iron powder	RA, RV	.with. or d.with. (-)
Locations are defined in ISO 6947: RA — lower; RV — horizontal (fillet weld); PG — vertical welding from the top down. .with. — alternating current; d.with. — constant current; (-) direct polarity (electrode negative); (+) — reverse polarity (electrode positive). Only for the composition of 1M3. Provisions marked as «All» can include or not include vertical weld from the top down. This should be stated in the manufacturer’s documentation.

The classification marking consists of two parts:

a) compulsory part

This part includes symbols indicating the type of electrode, tensile strength, coating type, type of current, welding position and chemical composition (see 4.1, 4.2, 4.3, 4.4 and 4.6);

b) an additional part

This part includes the symbol indicating the hydrogen content (see 4.7).

The complete designation (see section 10) should be indicated on the packaging and in the technical documentation of the manufacturer. Full schema notation for both methods are given in Appendix A.

4 Symbols and requirements

4.1 the symbol of the covered electrode

Symbol covered electrode for manual arc welding is the letter «E».

4.2 symbol for the chemical composition of the weld metal

The symbols of the chemical composition of the weld metal determined in accordance with section 6, are listed in table 1. Description of the symbols used to indicate the chemical composition by the method A and method b set out In annexes b and C respectively.

4.3 the Character of the mechanical properties of the weld metal

4.3 A Classification by chemical composition

There is no symbol for the mechanical properties of the weld metal. The weld metal obtained using covered electrodes are listed in table 1 in accordance with section 5, must also conform to the requirements for mechanical properties specified in table 2.

4.3 Classification according to the limit of the tensile strength and chemical composition

The symbol «49» corresponds to the minimum limit of tensile strength equal to 490 MPa, a symbol of «52» — the minimum limit of tensile strength equal to 520 MPa, the symbol «55» is the minimum limit of tensile strength equal to 550 MPa, a symbol of «62» — the minimum limit of tensile strength equal to 620 MPa.

A complete list of requirements for mechanical properties which have to satisfy different chemical compositions, listed in table 2.

4.4 the Symbol of the type of electrode coating

Type of coating of the electrode largely determines the conditions of application of the electrode and the properties of the weld metal.

4.4 A Classification by chemical composition

To indicate the type of coating used two symbols:

R — rutile coating;

In — ground cover.

Note — the description of the characteristics of each type of coverage is given in Appendix D.

4.4 Classification by tensile strength tensile and chemical composition

Type of coating of the electrode significantly depends on the slag-forming components. Type of coverage also determines the appropriate position of welding and type of current in accordance with table 3B.

Note — the description of the characteristics of each type of coverage is given in Appendix E.

4.5 the Symbol of the efficient transfer of the metal electrode and current type

4.5 A Classification by chemical composition

Symbols transition metal of the electrode, defined according to ISO 2401, and type of current specified in table 4A.


Table 4A — the Symbol of the efficient transfer of the metal electrode and current type (classification by chemical composition)

Symbol	Efficient transfer of electrode metal, %	Type of current
1	not more than 105	.with. and d.with.
2	the same	d.c.
3	St. 105 to 125 incl.	.with. and d.with.
4	the same	d.c.
.with. — alternating current; d.with. — DC. To demonstrate the ability to weld with alternating current, the test should be performed when the no-load voltage 65 V.

4.5 Classification by tensile strength tensile and chemical composition

There is no special symbol of the efficient transfer of the metal electrode and current type. The current nature included in the symbol type of coverage (see table 3B). Efficient transfer of the metal electrode is not specified.

4.6 Symbol welding positions

4.6 A Classification by chemical composition

Symbols welding positions in which the electrode is tested in accordance with ISO 15792−3 are shown in table 5A.

Table 5A Symbol welding positions (classification by chemical composition)

Symbol	Position
1	RA, PB, PC, PD, PE, PF, PG
2	RA, PB, PC, PD, PE, PF
3	RA, RV
4	RA, PB, PG
The welding position is defined in ISO 6947.

4.6 Classification by tensile strength tensile and chemical composition

There is no special symbol welding positions. Requirements for the welding position follow from the symbol type of coverage (see table 3B).

4.7 the Symbol of hydrogen content in the deposited metal

Table 6 shows the symbols of hydrogen content in the deposited metal when using an electrode with a diameter of 4.0 mm, determined by the method described in ISO 3690.

Table 6 — the Symbol of hydrogen content in the deposited metal

Symbol	The hydrogen content, ml/100 g weld metal, no more
H5	5
H10	10
H15	15

Used the current should be from 70% to 90% of the maximum value recommended by the manufacturer. Electrodes recommended for use on alternating current shall be tested on alternating current. Electrodes recommended for use only on direct current, shall be tested for DC reverse polarity.

The manufacturer should provide information on the recommended current and conditions of drying to reach the acceptable level of hydrogen content.

Additional information about the diffusive hydrogen is given in Annex F.

4.8 Requirements for rounding values

In determining compliance with the requirements of this standard for the real value obtained when testing shall be rounded in accordance with the rules set out in ISO 80000−1-2009 (regulation And application).

If the measured values obtained on equipment that is calibrated in units different from the units of this standard, the measured values before rounding must be converted into units of the standard. If the arithmetic mean value should be compared with the requirements of this standard, the rounding must only be done after the calculation of this arithmetic mean value.

If given in the section «Normative references» standard for test methods contains instructions for rounding that are contrary to the instructions of this standard, we must be satisfied to rounding in accordance with standard test methods. The rounding results shall meet the requirements of the appropriate table for the classification under test.

5 Mechanical testing

5.1 General provisions

Tensile tests and impact should be performed in a state post-welding heat treatment in accordance with table 2 using a sample from the weld metal of type 1.3 in accordance with ISO 15792−1 and electrodes with a diameter of 4.0 mm when the welding conditions given in 5.2 and 5.3 of this standard.

5.2 preheat Temperature and the temperature between passes

The preheat temperature and the temperature between passes must be taken in accordance with the type of the weld metal, as shown in table 2.

The metal temperature between passes must be measured with the use of termokeramika, contact thermometers or thermocouples (see ISO 13916).

The temperature between passes in front of the following passage must not exceed the maximum temperatures given in table 2. If any passageway temperature between passes is exceeded, then the test sample should be cooled in air to achieve the temperature between passes.

5.3 the Sequence of passes

The sequence of passes shall be as defined in table 7.

Table 7 — Sequence of passes

Electrode diameter, mm	A layered seam
	Number of layer	The number of passes per layer	The number of layers
4,0	From first to last	2	7−9
The top two layers can be made three passes each.

The direction of welding when performing the pass must not change. Each pass should be performed at a current ranging from 70% to 90% maximum recommended by the manufacturer. Regardless of the type of coating welding should be carried out on alternating current, if applicable AC and DC current, and direct current recommended polarity, if direct current is required.

6 Chemical analysis

Chemical analysis of the weld metal can be carried out at any suitable sample. However, in disputed cases, you should use the samples made in accordance with ISO 6847. Can be used by any analytical method, but in cases of dispute, use of generally accepted published methods. The results of chemical analysis must meet the requirements of table 1.

7 Test of a fillet weld

Sample for test fillet weld shall conform to the model given in ISO 15792−3.

7A Classification by chemical composition

The plate material must be selected from a number of materials for which the electrode is recommended by the manufacturer, or of non-alloy steels with a carbon content of not more than 0.30%. The surface should be cleaned from dross, rust and other contaminants. The plate thickness should be from 10 to 12 mm, the width shall be not less than 75 mm, the length shall be not less than 300 mm. the diameters of the electrode for testing each type of coating, welding positions when testing and required test results shown in table 8A.


Table 8A — test Requirements fillet welds (classification by chemical composition)

Symbol welding positions for classification	Type of coverage	The welding position	Electrode diameter, mm	The theoretical thickness of the fillet weld, mm	The difference of the other two sides, mm	Bulge, mm
1 or 2	R or	RV	6,0	5,0 min.	2,0 max.	A 3.0 max.
4	R	RV	6,0	4,5 min.	1,5 max.	2.5 m max.
	In		5,0
1 or 2	R	PF	4,0	4,5 max.	not regulated	2,0 max.
	In			5,5 max.
1, 2, or 4	R	PD	4,0	4,5 max.	1,5 max.	2.5 m max.
	In			5,5 max.	2,0 max.	A 3.0 max.
4	In	PG	4,0	5,0 min.	not regulated	1,5 max.
In cases where the maximum diameter necessary for welding, is less than the specified, use the largest diameter and proportional change criteria. Otherwise, the electrodes are not shown in the table diameters of the test subject. The maximum concavity.

7B Classification limit of the tensile strength and chemical composition

The plate material must be of non-alloy steels with a carbon content of not more than 0.30%. The welding surfaces must be cleaned. The thickness , width and plate length , welding positions, when testing each type of coating and the required test results are shown in table 8B.


Table 8 — test Requirements fillet welds (classification by tensile strength tensile and chemical composition)

Type cover TIA	Type of current and polar- ness	Electrode diameter, mm	The welding position	mm	, mm	, mm	Leg of a fillet weld, mm	The difference of the other two sides, mm	Maxi maximum convexity mm
10	d.c. (+)	5,0	PF, PD	10	75 min.	300	8,0 max.	3,5 max.	1,5
		6,0	RV	12		400	6,5 max.	2.5 m max.	2,0
11	.with.	5,0	PF, PD	10		300	8,0 max.	3,5 max.	1,5
		6,0	RV	12		400	6,5 max.	2.5 m max.	2,0
13	.with.	5,0	PF, PD	12		300	10,0 max.	2,0 max.	1,5
		6,0	RV			400	8,0 max.	3,5 max.	2,0
15	d.c. (+)	4,0	PF, PD	10		300	8,0 max.	3,5 max.	2,0
		6,0	RV	12		400
16	.with.	4,0	PF, PD	10		300	8,0 max.	3,5 max.	2,0
		6,0	RV	12		400
18	.with.	4,0	PF, PD	10		300	8,0 max.	3,5 max.	2,0
		6,0	RV	12		400
19	.with.	5,0	PF, PD	12		300	10,0 max.	2,0 max.	1,5
		6,0	RV			400	8,0 max.	3,5 max.	2,0
20	.with.	6,0	RV	12		400	8,0 max.	3,5 max.	2,0
27						400 or 650
In cases where the maximum diameter necessary for welding, is less than the specified, use the largest diameter and proportional change criteria. Otherwise, the electrodes are not shown in the table diameters of the test subject. When the length of the electrode is 300 mm, the value must be at least 250 mm; the length of the electrode is 350 mm, the value must be at least 300 mm. When the length of the electrode 450 mm, the value must be at least 400 mm; the length of the electrode 700 mm, the value must be at least 650 mm.

8 Re-testing

If the test did not confirm compliance with the requirements, it should be repeated twice. The results of both retests must meet the requirements. Samples for re-tests can be taken from the initial connection, or from the new weld. For chemical analysis, retest need only for those individual items that do not meet the requirements of the tests. If one or both re-tests meet the requirements of this standard, the test material should be considered as not satisfying the requirements of this classification.

In case if during preparation or after completion of any test it is well established that the prescribed or appropriate methodology violated in the preparation of the weld or sample (s) tested or when tested, such a test should be considered invalid regardless of what this test is actually performed, and its results meet or do not meet the requirements of this standard. This test should be repeated in compliance with the prescribed methods. In this case, does not require doubling the number of samples for testing.

9 Technical delivery conditions for

Technical conditions for supply should meet the requirements of standards ISO 544 and ISO 14344.

10 Examples of designation

The designation of the covered electrode should follow the principles given in the examples below (10A and 10B).

10A Classification by chemical composition

The designation of the covered electrode includes a room of this standard, the letter a should follow the principle shown in the example below.

Example — weld Metal, weld stick electrode for manual arc welding (E), has a chemical composition of 1.1% Cr and 0.6% Mo, (CrMo1) in accordance with table 1. The coating of the electrode main (). The electrode can be used with direct current with an effective transfer of the metal electrode 120% (4) when welding butt and fillet welds in the down position (4). The hydrogen content in the deposited metal is determined according to ISO 3690 and does not exceed 5 ml/100 g deposited weld metal (H5).

The designation of this electrode:

GOST R ISO 3580-A — E CrMo1 B4 4 H5.

Mandatory part:

GOST R ISO 3580-A E CrMo1,

where is the GOST R ISO 3580-a — designation of this standard (classification by chemical composition);

E covered electrode for manual arc welding (see 4.1);

CrMo1 chemical composition of weld metal (see table 1);

In — type electrode coating (see 4.4 A);

4 — the effective transfer of the metal electrode and type of current (see table 4A);

4 — welding position (see 4.6 A);

H5 — the hydrogen content (see table 6).

10B Classification by tensile strength tensile and chemical composition

The designation of the covered electrode includes the designation of this standard, the letter «b» should follow the principle shown in the example below.

Example — weld Metal, weld stick electrode for manual arc welding (E), has a chemical composition of 1.1% Cr and 0.6% Mo (1CM) in accordance with table 1. The limit of the tensile strength of the deposited and annealed metal exceeds 550 MPa (55). The coating of the electrode — main with the addition of iron powder, the electrode can be used on AC or DC reverse polarity in all positions except vertical down (18). The hydrogen content in the deposited metal is determined according to ISO 3690. It should not exceed 5 ml/100 g deposited weld metal (H5).

The designation of this electrode:

GOST R ISO 3580- — Е5518−1CM H5.

Mandatory part:

GOST R ISO 3580- — Е5518−1CM,

where is the GOST R ISO 3580-In — the designation of this standard, classification by tensile strength tensile and chemical composition;

E covered electrode for manual arc welding (see 4.1);

55 — the limit of the tensile strength of the deposited weld metal (see 4.3 b and table 2);

18 — type of coating (see 4.4 and table 3B);

1 — chemical composition of weld metal (see table 1);

H5 — the hydrogen content (see table 6).

Annex a (informative). Classification methods

Appendix A
(reference)

A. 1 GOST R ISO 3580-A

Method for classification of covered electrodes chemical composition in accordance with GOST R ISO 3580 shown in figure A. 1.

Figure A. 1 — classification of covered electrodes chemical composition for welding of heat resistant steels

__________________

The combination of these designators constitutes the covered electrode classification.
These symbols as optional were not part of the classification of covered electrodes.

Figure A. 1 — classification of covered electrodes chemical composition for welding of heat resistant steels

A. 2 GOST R ISO 3580-

Method for classification of covered electrodes according to the limit of the tensile strength and chemical composition in accordance with GOST R ISO 3580 shown in figure A. 2.

Figure A. 2 — classification of covered electrodes according to the tensile strength and chemical composition for the welding of heat resistant steels

__________________

The combination of these designators constitutes the covered electrode classification.
These symbols as optional were not part of the classification of covered electrodes.

Figure A. 2 — classification of covered electrodes according to the tensile strength and chemical composition for the welding of heat resistant steels

Annex b (informative). Description of notation of the chemical composition (classification by chemical composition)

The App
(reference)

The designation contains the main alloying elements, with symbols symbols of chemical elements of Cr, Mo, V and W. For alloys containing chromium, after the chemical symbol followed by a number 1, 2, 5, 9, or 12, to indicate the nominal content of chromium in percent. In the particular case for the alloy, alloyed 9% chrome, the designation will be СгМо91, and the number «1» added to show additional complex alloying in comparison with the designation СгМо9.

Alloys with low carbon content are designated by the letter «L» indicates the maximum percentage of carbon not more than 0.05%.

Application (reference). Description of notation of the chemical composition (classification by tensile strength tensile and chemical composition)

Application
(reference)

C. 1 Type 1M3

For electrodes containing molybdenum (Mo) as the only alloying element that distinguishes them from the electrodes of non-alloy steels, the designation consists of the digits «1» approximately equal to twice the nominal Mn content, followed by the letter «M» to denote molybdenum, and the number «3» indicating the level of molybdenum content.

Example — 3 is about 0.5% Mo,

where the number «3» indicates high levels of Mo.

C. 2 Type HSHNH

For electrodes made of steels alloyed with chromium and molybdenum, the designation consists of the letters «C» and numbers in front of it denoting the nominal content of chromium (Cr), and the letters «m» and the number before it denoting the nominal content of molybdenum (Mo). If the nominal contents of one of these two elements is much less than 1%, the figure before the letter is omitted. When added to an alloy of tungsten (W) and/or vanadium (V) corresponding to the letter «W» and/or «V» in the same order is added after the symbols of chromium and molybdenum. High carbon content marked with the letter «N» at the end of the designation, the low carbon content of the letter «L». The variation is mainly the chemical composition reflected the conventional number after the last letter.

Annex D (informative). Description of types of electrode covering (classification by chemical composition)

Appendix D
(reference)

D. 1 rutilic Electrodes

The coating contains titanium dioxide as a major component, known as rutile, and silicates and carbonates.

Electrodes with rutile coating provide atomized transfer and are suitable for welding in all spatial positions, except vertical down.

D. 2 Electrodes

A coating of this type contains a large amount of carbonates of alkaline earth metals and fluorspar. Such electrodes can provide a low hydrogen content in the deposited metal when used in accordance with the manufacturer’s recommendations.

The electrodes typically suitable for welding with direct current reverse polarity.

The basic electrodes are preferred for welding thick plate structures and joints with gaps. The arc recommended to keep as short as possible.

Annex E (informative). Description of types of electrode covering (classification by tensile strength tensile and chemical composition)

Annex E
(reference)

E. 1 General provisions

Welding-technological properties of the covered electrode and mechanical properties of the weld metal is largely dependent on its coating. Homogeneous mixture of substances of the coating typically contains the following six main components:

— slag-forming materials;

the deoxidizers;

— protective gas-forming materials;

— ionizing substances;

— binder;

— alloying elements (if necessary).

In addition, there may be added metal powders to increase the effective transfer of the metal electrode and/or the possibility of obtaining the desired chemical composition of the deposited metal, while they can influence on the welding-technological properties that determine the possible welding position. If cover type is characterized as a coating containing metallic powder, this means that the coating is introduced a relatively large number of metal powders (more than 15% by weight of the coating).

Some brands of electrodes are suitable for welding both AC and direct current of one or both polarities can be optimized by the manufacturer for specific kinds of current depending on market requirements.

E. 2 Coating type 10

A coating of this type contains a large quantity of combustible organic substances, particularly cellulose. Thanks to a deeply penetrating arc, electrode with such a coating is particularly suitable for welding in vertical position from top to bottom. Arc stabiliziruemost primarily due to sodium, therefore, these electrodes are mainly suitable for welding with direct current and generally of the opposite polarity.

E. 3 Coating type 11

A coating of this type contains a large quantity of combustible organic substances, particularly cellulose. Thanks to a deeply penetrating arc, electrode with such a coating are suitable for welding in vertical position from top to bottom. Arc stabiliziruemost primarily due to the potassium, so the electrodes are mainly suitable for welding both on AC and DC reverse polarity.

E. 4 Coating type 13

A coating of this type contains a large amount of titanium dioxide (rutile) and stable potassium. The electrode with such a coating provide a smooth, quiet arc and is particularly suitable for welding sheet metal.

E. 5. Coating type 15

This type of coverage is highly basic and contains large amounts of marble and fluorspar. Arc stabilization is provided mainly by sodium, and electrodes with this type of coverage is usually suitable for use with direct current reverse polarity. Electrodes with this coating provide a weld metal of high metallurgical quality with low hydrogen.

E. 6 Coating type 16

This type of coverage is highly basic and contains large amounts of marble and fluorspar. Arc stabilization with potassium provides the ability to weld with alternating current. Electrodes with this coating provide a weld metal of high metallurgical quality with low hydrogen.

E. 7 Cover type 18

Electrodes with this type of coating such electrodes with a coating type 16, except that they have a slightly thicker coating with the addition of metal powder, which increases the ability to current load and deposition rates compared to the electrodes with a coating type 16.

E. 8 Coating type 19

The coating contains oxides of titanium and iron usually in the form of the mineral ilmenite. Although electrodes with this type of coverage are basic low hydrogen, they produce weld metal with relatively high toughness.

E. 9 Coating type 20

A coating of this type contains large amounts of iron oxide. The slag is very flowable, so the welding electrodes with this type of coverage is only possible in the lower and horizontal positions. Electrodes designed primarily for welding tee and lap joints.

E. 10 Coating type 27

Electrodes with this type of coating such electrodes with a coating type 20, except that the coating is very thick and contains large quantities of metal powder in addition to iron oxide in the coating type 20. Electrodes with a coating 27 is designed for welding tee and lap joints at high speed.

Annex F (informative). Notes on diffusion hydrogen

Appendix F
(reference)

F. 1 For batch testing of electrodes can be used and other methods of collection and measurement of hydrogen diffusion, if they have the same reproducibility and calibrated according to the method given in ISO 3690. Contents* hydrogen depends on the current type.
_______________
* The text of the document matches the original. — Note the manufacturer’s database.

F. 2 Cracks in welded joints can be caused by hydrogen or largely determined by his influence. The danger caused by the hydrogen cracks increased with increasing the content of alloying elements and the level of mechanical stress. Such cracks mostly develop after cooling connections and therefore referred to as cold cracks.

F. 3 Under the assumption that the external conditions are satisfactory (the weld area is clean and dry), hydrogen enters the weld metal from hydrogen-containing chemical substances in welding materials. When using basic electrodes the main source of hydrogen is water bound in the coating. Dissociation of water in the arc causes an increase of the content of atomic hydrogen that is absorbed in the weld metal. For a given material and stress state, the danger of cold cracking decreases with decreasing hydrogen content in the weld metal.

F. 4 Practically allowable level of hydrogen will depend on the specific application of the electrodes. To ensure this level shall determine the conditions of transportation, storage and drying recommended by the manufacturer of the electrodes.

Application YES (compulsory). Information about the compliance of the referenced international standards reference the national standards of the Russian Federation (and acting in this capacity inter-state standards)

App YES
(required)

Table YES.1

Marking the reference international standard	The degree of compliance	Designation and name of the relevant national standard
ISO 544	MOD	GOST R 53689−2009 (ISO 544:2003) «Materials and welding. Technical delivery conditions for filler materials. The type of product, dimensions, tolerances and marking"
ISO 2401	-	*
ISO 3690	-	*
ISO 6847	-	*
ISO 6947	-	*
ISO 13916	-	*
ISO 14344	-	*
ISO 15792−1:2000	IDT	GOST R ISO 15792−1-2009 «Materials and welding. Test methods. Part 1. Test methods samples of weld metal from steel, Nickel and Nickel alloys"
ISO 15792−3:2000	-	*
ISO 80000−1	-	*
* The corresponding national standard is missing. Prior to its adoption, it is recommended to use the translation into Russian language of this international standard. The translation of this international standard is the Federal information Fund of technical regulations and standards. Note — In this table the following symbols have been used the degree of conformity of standards: — IDT — identical standards; — MOD — modified standard.