GOST 9087-81

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  ГОСТ 9087-81

GOST 9087−81 melted welding Fluxes. Specifications (with Amendments No. 1, 2)

GOST 9087−81

The Group B05

INTERSTATE STANDARD

FUSED WELDING FLUXES

Specifications

Welding melted fluxes. Specifications

OKP 59 2951 1000

Date of introduction 1982−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Academy of Sciences of the Ukrainian SSR

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 26.05.81 N 2605

3. INSTEAD 9087−69 GOST, GOST 5.1929−73

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

The designation of the reference document referenced	The number of the paragraph, subparagraph
GOST 12.1.005−88	3.2
GOST 12.1.007−76	3.2
GOST 12.3.003−86	3.5
GOST 1770−74	5.5
GOST 2226−88	6.3, 6.5
GOST 3826−82	5.3
GOST 6613−86	5.3
GOST 14192−96	6.2
GOST 15150−69	6.6
GOST 15846−79	6.5
GOST 19360−74	6.5
GOST 22974.0−96 — GOST 22974.14−96*	5.2

________________
* On the territory of the Russian Federation GOST 22974.14−90. — Note the manufacturer’s database.

5. Limitation of actions taken by Protocol No. 4−93 of the Interstate Council for standardization, Metrology and certification (ICS 4−94)

6. EDITION (April 2002) with Amendments No. 1, 2, approved in June 1988, June 1990 (IUS 10−88, 9−90)


This standard applies to fused fluxes used for automatic and mechanized electric arc welding and surfacing of steel, as well as for electroslag welding of steel designed for the needs of the national economy and exports.

(Changed edition, Rev. N 1).

1. BRAND

1.1. Fused fluxes are manufactured in the following grades: an-348-A an-348-AM an-348, an-348-VM, OSTs-45, OSTs-45, EN-8, EN-15, EN-17M, an-18, an-20S, an-20, an-20P, an-22, an-42, an-26S, an-26СП, an-26P, an-43, an-47, an-60, FTS-9, EN-65, OSC-45П.

(Changed edition, Rev. N 1, 2).

1.2. Recommendations for use the flux is given in appendices 1 and 2.

(Changed edition, Rev. N 1).

2. TECHNICAL REQUIREMENTS

2.1. Fluxes shall be manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

(Changed edition, Rev. N 1).

2.2. The chemical composition of the flux should correspond to the table.1.

Table 1

Mark flux	Mass fraction, %
Silicon (IV) oxide	Manganese (II) oxide	Calcium oxide	Magnesium oxide	Aluminum oxide
AN-348-A	40−44	31−38	No more than 12	No more than 7	No more than 6
AN-348-AM	40−44	31−38	No more than 12	No more than 7	No more than 6
AN-348, AN-348-VM	40−44	30−34	No more than 12	No more than 7	No more than 8
OSC-45	37−44	37−44	Not more than 10	No more than 3	No more than 6
OSTS-45M	38−44	38−44	Not more than 10	No more than 3	No more than 6
OSC-45П	38−44	38−47	No more than 8	No more than 2.5	Not more than 5
An-8	33−36	21−26	4−7	5−8	11−15
AN-15M	6−10	Not more than 0.9	29−33	No more than 2	36−40
AN-17M	18−22	Not more than 3.0	14−18	8−12	24−29
EN-18	17−21	2,5−5,0	14−18	7−10	14−18
AN-20S, AN-20, AN-20P	19−24	Not more than 0.5	3−9	9−13	27−32
An-22	18−22	7,0−9,0	12−15	12−15	19−23
AN-26S, AN-26СП, AN-26P	29−33	2,5−4,0	4−8	15−18	19−23
EN-42	30−34	14−19	12−18	-	13−18
EN-43	18−22	5,0−9,0	14−18	No more than 2	30−36
EN-47	28−33	11,0−18,0	13−17	6−10	9−13
An-60	42−46	36−41	Not more than 10	No more than 3	No more than 6
EN-65	38−42	22−28	No more than 8	7−11	Not more than 5
FTS-9	38−41	38−41	No more than 8	No more than 3	10−13

Extension table 1

Mark flux	Mass fraction, %
Calcium fluoride	(Potassium+ sodium) oxide	Titanium (IV) oxide	Zirconium (IV) oxide	Iron (III) oxide	Sulfur	Phosphorus	Carbon
no more
AN-348-A	3−6	-	-	-	0,5−2,0	0,12	0,12	-
AN-348-AM	3−5	-	-	-	0,5−2,0	0,12	0,12	-
AN-348, AN-348-VM	3−6	-	0,5−6,0	-	0,5−2,0	0,12	0,13	-
OSC-45	5−9	-	-	-	0,5−2,0	0,12	0,14	-
OSTS-45M	6−9	-	-	-	0,5−2,0	0,12	0,10	-
OSC-45П	6−9	-	-	-	Not more than 1.7	0,08	0,08	-
An-8	13−19	-	-	-	1,5−3,5	0,10	0,12	-
AN-15M	16−20	Sodium fluoride 2.0 to 5.5	-	-	Not more than 0.8	0,07	0,05	-
AN-17M	21−25	-	-	-	2,0−5,0	0,05	0,05	-
EN-18	19−23	-	-	-	13,5−16,5	0,05	0,5	-
AN-20S, AN-20, AN-20P	25−33	2.0 to 3.0	-	-	Not more than 0.8	0,06	0,03	-
An-22	20−24	1,0−2,0	-	-	Not more than 1.0	0,05	0,05	-
AN-26S, AN-26СП, AN-26P	20−24	-	-	-	Not more than 1.5	0,08	0,08	0,05
EN-42	14−20	-	-	-	Not more than 1.0	0,06	0,1	-
EN-43	17−21	-	-	-	2,0−5,0	0,05	0,05	-
EN-47	8−13	-	4,0−7,0	1,1−2,5	0,5−3,0	0,05	0,08	-
An-60	5−9	-	-	-	Not more than 0.9	0,05	0,05	-
EN-65	8−12	-	4,0−7,0	4,0−7,0	Not more than 1.5	0,05	0,05	-
FTS-9	2−3	-	-	-	Not more than 1.5	0,10	0,10	-

Notes:

1. By agreement between manufacturer and consumer is permitted to produce stamps flux an-348-AM with a mass fraction of calcium fluoride less than 3%.

2. The content of iron oxides in the fluxes of all grades are presented based on iron (III) oxide.

2.3. Fluxes shall be manufactured in the form of homogeneous granules. The content of foreign particles (undissolved particles of raw materials, bricks, coal, graphite, coke, metal particles, etc.) should be not more than 0.5% by weight for grades of flux an-348-A an-348-AM an-348, an-348-VM, OSTs-45, OSC-45П, OSTs-45M, an-18; 0,3% — for grades EN-8, EN-15, EN-17M, an-20, an-20P, An-22, an-20S, an-43, an-47, an-60, an-65, FTS-9; 0,1% — for brands an-26S, an-26СП, an-26P, an-42.

2.4. The structure and color of the bean flux shall be as specified in table.2.

Table 2

Mark flux	The structure of grains	The color of the beans
AN-348-A AN-348-AM	Vitreous	From yellow to brown of all shades
AN-348- AN-348-VM	From brown to dark brown of all shades
OSC-45 OSTS-45M	From light gray and yellow to brown of all shades
An-8	From yellow to brown of all shades
AN-15M	From grey to light blue and light green of all shades
AN-17M	From green and brown to black all shades
EN-18	From dark grey and dark blue to black of all shades
AN-20C AN-20CM	From white to light gray and light blue of all shades
An-22	From yellow to light brown all shades
AN-26S	From grey to light green of all shades
EN-42	From dark brown to yellow and all shades of green
EN-43	Besovideo	From green and brown to black all shades
EN-47	From dark brown to black all shades
FTS-9	From light yellow to brown of all shades
AN-20P	From white to light gray of all shades
AN-26P	From light gray to grey of all shades
OSC-45П	From grey and light-brown to brown of all shades
An-60	From light grey and light pink to yellow and light brown of all shades
EN-65	From gray to black to all shades
AN-26СП	A mixture of glassy and Pasolini bean	From grey to light green of all shades

Notes:

1. Brands for flux OSTs-45, OSTs-45M, OSC-45П, an-60, EN-65, EN-8, EN-17M, an-18, an-20S, an-20, an-20P, an-22, an-26S, an-42 an-43 an-47, an-26P, an-26СП, FTS-9 is allowed no more than 3%, and for flux brand EN-15M — not more than 1% from the mass flux of grains with a color different from the specified one.

2. For brands fluxes an-348-A an-348-AM not allowed to have more than 10% of the mass flux of the white opaque grains.

3. For brands fluxes an-348, an-348-VM is not allowed the presence of more than 10% of the mass flux of grains with greenish and steel shade.

2.5. The grain size of the flux should be as given in table.3.

Table 3

Mark flux	Grain size, mm
OSC-45П, AN-20P, AN-60	0,35−4,00
AN-348-A AN-348-A, OSTS-45, EN-18
AN-20S, AN-26P, AN-26СП, EN-42	0,25−2,80
EN-65	0,35−2,50
EN-8, EN-15, EN-17M, AN-22, AN-26S, AN-43, AN-47	0,25−2,50
AN-348-AM AN-348-VM OSTS-45M, AN-20CM, FTS-9	0,25−1,60

Notes:

1. Not permitted in the flux: the grain size in excess of respectively 1,6; 2,5; 2,8; 4,0 mm in the amount of more than 3% of its mass, of grain size less than, respectively, 0.25 and 0.35 mm more than 3% of its mass.

2. By agreement with the consumer allowed to produce a flux having a grain size less than 0.25 mm.

3. By agreement between manufacturer and consumer is permitted to produce stamps flux an-348-A with a grain size of 0.35−2,80 mm fluxes stamps an-17M and an-43 having a grain size of 0.25−1.60 mm.

2.2−2.5. (Changed edition, Rev. N 1, 2).

2.6. Humidity fluxes stamps OSC-45П, an-20S, an-20P, an-60, an-65 shall not exceed 0.05%, grade EN-8 — 0,08%, other grades — 0,10% by weight of the flux.

2.7. Bulk density flux is specified in table.5.

Table 5*

__________________
* Table 4 is excluded.

Mark flux	Bulk density, g/cm
AN-348-A AN-348-AM AN-348, AN-348-BM, EN-8, EN-15, AN-20S, AN-20, AN-22, AN-26S, FTS-9, OSTS-45, OSTS-45M	1,3−1,8
AN-17TH, EN-18, EN-43, AN-47	1,4−1,8
AN-20P, AN-26P, AN-60, AN-65	0,8−1,1
AN-26СП	0,9−1,3
OSC-45П	1,0−1,3

2.6, 2.7. (Changed edition, Rev. N 1).

2.8. Fluxes, smelted in electric furnaces, prior to packaging shall be subjected to magnetic separation, with the exception of the brand of flux an-60.

(Changed edition, Rev. N 1, 2).

2.9. Flux brand EN-26СП allowed to produce mix melted separately brands fluxes of an-26S and an-26P in the ratio 1:1 by weight of the flux.

2.10. Brands fluxes an-348-A an-348-AM an-348, an-348-VM, OSTs-45, EN-47 melted in the fiery and electric furnaces; fluxes of the other brands in electric furnaces.

In the manufacture of brands of flux an-348-A an-348-AM an-348, an-348-VM, OSTs-45, EN-47 should be used an oxide of manganese concentrates 1 grade.

(Changed edition, Rev. N 1, 2).

3. SAFETY REQUIREMENTS

3.1. Work with fluxes in their sorting, packing, transportation, quality control may be accompanied by the release of dust containing manganese, silicon, fluoride. Flux dust refers to chemically hazardous and harmful production factors. In terms of impact on the human body flux dust is toxic, irritating and sensitizing, path of penetration into the organism through respiratory organs, integuments and mucous membranes.

(Changed edition, Rev. N 1).

3.2. For the prevention of occupational diseases, and also to avoid accidents when sorting, packing, transportation, quality control fluxes required to fulfill the requirements of GOST 12.1.005, GOST 12.1.007.

The concentration of harmful substances in air at working with the fluxes must not exceed the maximum permissible concentration (MPC) given in table.6.

Table 6

The name of the substance	The value of MAC, mg /m	Hazard class
Manganese in welding aerosol at its contents:
up to 20%	0,2	II
from 20 to 30%	0,1	II
Manganese oxide (in terms of ):
spray disintegration	0,3	II
Silicon dioxide amorphous mixture of oxides of manganese in the aerosol condensation content of each of them not more than 10%	1	III
Hydrogen fluoride (in terms of )	0,5/0,1	I
Hydrofluoric acid salts (for ):
a) fluorides of sodium, potassium	1/0,2	II
b) fluoride of aluminium, calcium, magnesium	2,5/0,5	III

Notes:

1. If in the column «Value of MPC is» given two values, this means that the maximum in the numerator and in the denominator — the time-weighted average MPC.

2. For silicon dioxide the above value of the MPC for the total weight of the aerosol.


(Changed edition, Rev. N 1, 2).

3.3. Working with the fluxes must be provided with PPE in accordance with standard industry regulations approved in the established order.

3.4. The definition of harmful substances in the air of working zone is carried out in accordance with the guidelines approved by the USSR Ministry of health.

3.5. When using welding fluxes should be guided by the requirements of GOST 12.3.003 and sanitary rules during welding, surfacing and cutting of metals, approved by the USSR Ministry of health.

3.3−3.5. (Changed edition, Rev. N 1).

4. ACCEPTANCE RULES

4.1. Fluxes accept parties. The party should consist of a flux of the same brand and be issued a document about quality that contains:

trademark or the name and trademark of manufacturer;

brand flux;

batch number;

the weight of the batch;

the results of chemical analysis;

the date of manufacture;

the designation of this standard.

The mass of the party must be not more than 80 t

4.2. From each batch of flux selected sample weighing not less than 10 kg, consisting of point samples. The manufacturer selects a point sample in the packaging process of the products. When packing the flux in paper bags select one point sample from every tenth bag; when Packed in containers, each container not less than four spot samples, and it is necessary to take composite samples in the filling flux in a container, crossing completely the flow; when the flow of flux into the hopper moving means are selected not less than four spot samples for 1 h. the Mass of spot samples from 0.05 to 0.30 kg.

4.1, 4.2. (Changed edition, Rev. N 1).

4.3. If unsatisfactory results for one of the indicators for this indicator, repeat tests are carried out at twice the sample taken from the same batch. The results of repeated tests are final.

5. TEST METHODS

5.1. Sampling

Selected sample is thoroughly mixed, then cook kvantovanie to the mass of not less than 2.5 kg, of which after mixing 0.5 kg taken for determination of chemical composition and humidity. The remaining flux Quartet, getting four servings, each weighing not less than 0.5 kg, of which two portions are selected for the two parallel measurements of bulk density, the third portion is divided in half, getting two servings of 250 g to determine particle size distribution, and from the last portion after kvantovaniya pick up two hitch 100 g for control homogeneity.

5.2. The chemical composition of the flux is determined according to GOST 22974.0 — GOST 22974.13.

Allowed the use of other methods of analysis if their metrological characteristics are not inferior to the characteristics of the techniques included in the above standards.

If there is disagreement in assessing the quality of flux the test is performed according to GOST 22974.0 — GOST 22974.13.

5.1, 5.2. (Changed edition, Rev. N 1).

5.3. Particle size distribution of fluxes is determined by sieving the sample on the instrument brand 029М made according to normative-technical documentation, through the two sieves with a diameter of 200 mm for (60±5) C and subsequent weighing of the balance on the large sieve and sifting a small sieve with an error of not more than 0.1%. The relative number of grains () that do not meet the size requirements of the table.3 percentage calculated by the formula

where is the mass balance on a large sieve or sifting a small sieve, g;

is the total mass of sample, g.

For determination of granulometric composition of the flux should be applied to sieves with meshes N 025, 0355 according to GOST 6613, N 1,6; 2,5 GOST 3826 or GOST 6613 N 2,8; 4,0 GOST 3826.

(Changed edition, Rev. N 1, 2).

5.4. Uniformity of structure and color of the flux is controlled by visual inspection of the sample with increasing not less than 2.5 times. Particles of another color, as well as foreign particles are sampled and weighted. Weighing results are expressed in percent by weight of the hitch.

5.5. Bulk density flux is determined by filling a measuring glass cylinder with a capacity of 250 or 500 cm, made according GOST 1770 or other regulatory-technical documentation.

The filling of the cylinder the flux is produced without the chemical seal from the Cup with a spout with a height of not more than 2 cm above the upper edge of the cylinder. The flux is weighed with an accuracy of up to 1 g. the Bulk density (), g/cm, is calculated by the formula

where is the mass flux, filled the cylinder, g;

 — the volume of a cylinder, cm.

5.6. To determine the moisture flux hitch weight (100±5) g were placed in pre-dried a Cup and kept at a temperature of (300±10) °C in a drying oven (60±5) min. After cooling in a desiccator for (40±5) min the sample is weighed. Humidity flux () in percent is calculated by the formula

where is the initial mass of sample, g;

 — final mass of sample, g.

The final result of the analysis be the arithmetic mean of results of two parallel measurements, the difference between them should not exceed the humidity:

from 0,02 to 0,04 — 0,005%;

St. 0,04 to 0,08 — 0,007%;

St. 0,08 to 0.20 — 0,010%.

5.4−5.6. (Changed edition, Rev. N 1).

6. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

6.1. Each bag or container, attach a label or labeling with waterproof paint, which indicate:

trademark or the name and trademark of manufacturer;

brand flux;

the net mass;

batch number;

the designation of this standard;

manipulation sign «Protect from moisture».

6.2. Transport marking — according to GOST 14192 with the application of basic, additional, information inscriptions and manipulation sign «Protect from moisture» performed by waterproof paint on the label, securely attached at the door from the inside of the car when a carload shipment. When shipping a flux in a transport container, each package must have transport labeling.

6.3. The flux must be Packed in paper bags according to GOST 2226*. Net weight of one bag of 20 to 50 kg. Weighing should be carried out with an uncertainty of less than 1% of the weight of the bag.
________________
* On the territory of the Russian Federation the document is not valid. Standards 2226−2013, here and hereafter. — Note the manufacturer’s database.

By agreement with the consumer allowed packing fluxes in specialized containers that are manufactured according to normative-technical documentation, ensuring the safety of the flux and quality during transportation.

Fluxes intended for export, Packed in accordance with the requirements of the order of foreign trade enterprises.

6.4. The flux must be transported in covered vehicles by any vehicle in accordance with the rules of transportation, loading and fastening of cargoes operating on the corresponding type of transport.

6.5. Packing, transportation and storage of fluxes sent to the far North regions or equated to them, — according to GOST 15846* group 146 — fused welding fluxes.
________________
* On the territory of the Russian Federation the document is not valid. Standards 15846−2002. — Note the manufacturer’s database.

Allowed fluxes in the packaging paper bags according to GOST 2226 with a polyethylene insert according to GOST 19360.

6.6. The flux should be stored in covered unheated warehouses for the storage group 3ЖЗ GOST 15150.

Sec. 6. (Changed edition, Rev. N 1).

7. MANUFACTURER’S WARRANTY

7.1. The manufacturer guarantees the conformity of the flux requirements of this standard under the conditions of transportation, storage and operation.

7.2. Warranty period of storage fluxes — 2 years from date of manufacture.

Sec. 7. (Added, Rev. N 1).

ANNEX 1 (recommended)

ANNEX 1
Recommended

Mark flux	Appointment
AN-348-A AN-348-AM AN-348, AN-348-VM, OSTS-45, OSTS-45M, OSC-45П, FTS-9, AN-60, AN-65	Mechanized welding and surfacing of carbon, low alloy steels carbon and low alloy welding wire
An-8	Electroslag welding of carbon and low alloy steels welding of low alloy steels carbon and low alloy welding wire
AN-20S, AN-20, AN-20P, AN-15 AN-18	Automatic arc welding and surfacing of high-alloy and medium alloy steels, the appropriate welding wire
An-22	Electroslag welding, and automatic arc surfacing and welding of low alloy and medium alloy steels, the appropriate welding wire
AN-26S, AN-26СП, AN-26P	Automatic and semi-automatic welding of stainless steel corrosion-resistant and heat-resistant steels, the appropriate welding wire
AN-17M, AN-42 AN-43 AN-47	Arc welding and surfacing of carbon, low alloy and medium alloy steels of increased and high strength of the respective welding wire

1. With proper choice of technology brands fluxes an-8, an-20S, an-20, an-20P, an-22, an-26S, an-26P, an-15 an-17M, an-18, an-42 an-43 an-47, an-65 can be used for welding and surfacing of other types of steel in combination with appropriate filler materials.

2. Vitreous flux having a grain size of not more than 2.5 or 3.0 mm and pensively flux having a grain size of not more than 4.0 mm designed for automatic welding wire of diameter not less than 3.0 mm.

3. Vitreous flux having a grain size not more than 1.6 mm designed for automatic and semi-automatic welding wire diameter 3.0 mm.

ANNEX 2 (informative)

ANNEX 2
Reference

When humidity is exceeded, the flux before use is subjected to repeated heat treatment according to the recommended mode listed in the table.

Mark flux	The recommended drying mode
Temperature, °C	Time, h, not more
AN-348-A AN-348-AM AN-348, AN-348-VM, OSTS-45, OSTS-45M	300−400	1
OSC-45П, EN-8, EN-17M, AN-18, AN-20S, AN-20, AN-20P, AN-22, AN-26S, AN-42 AN-43 AN-47, AN-60, AN-65, FTS-9	400−450	2
AN-26P, AN-26СП	500−600
AN-15M	650−800	1

Note. Allowed the use of other modes of drying to achieve the required moisture content and color stability of grains of flux.


ANNEXES 1, 2. (Changed edition, Rev. N 1, 2).