GOST 7769-82

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  ГОСТ 7769-82

GOST 7769−82 alloy Cast iron for castings with special properties. Stamps (Change No. 1)

GOST 7769−82
Group В83

INTERSTATE STANDARD

ALLOY CAST IRON CASTING
WITH SPECIAL PROPERTIES

Brand

Alloy cast iron for castings of special properties. Grades

ISS 59.080.30*
OKP 12 3000

____________________

* In the index «National standards» 2006
ISS 77.080.10. — Note the CODE.

Date of introduction 1983−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of power engineering

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 17.02.82 N 706

3. The standard fully complies ST SEV 5505−86 and international standard ISO 2892−73

4. INSTEAD 7769−75 GOST, GOST 11849−76

5. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

The designation of the reference document referenced	The number of the paragraph, subparagraph
GOST 621−87	4.6
GOST 1497−84	4.4
GOST 2604.1−77	4.3
GOST 2604.2−86	4.3
GOST 2604.3−83	4.3
GOST 2604.4−87	4.3
GOST 2604.5−84	4.3
GOST 2604.6−77	4.3
GOST 2604.7−84	4.3
GOST 2604.8−77	4.3
GOST 2604.9−83	4.3
GOST 2604.10−77	4.3
GOST 2604.11−85	4.3
GOST 2604.13−82	4.3
GOST 3443−87	4.9
GOST 6130−71	4.10.1
4.6
GOST 7565−81	4.2
GOST 9012−59	4.7
GOST 9583−75	4.6
GOST 27208−87	4.4, 4.5, 4.7
GOST 28473−90	4.3

6. Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (I & C N 11−95 year)

7. EDITION with Change No. 1, approved in April 1987 (I & C 7−87), Amendment (ICS 6−91)


This standard applies to alloy cast iron casting with high temperature resistance, corrosion resistance, wear resistance and heat resistance.

1. BRAND

1.1. Brand alloy cast iron casting are shown in table.1.

Table 1

Cast iron		Mark	Property casting
Chromium	low alloy	CHH1 CHH2	Heat-resistant
CHH3	Heat-resistant, wear-resistant
CHH3T	Wear-resistant
high-alloy	CHH9N5	Wear-resistant
CHH16	Wear-resistant, heat-resistant
CHH16M2 CHH22	Wear-resistant
CHH22S CHH28	Corrosion-resistant and heat-resistant
CHH28P	Persistent in zinc melt
CHH28D2	Wear-resistant and corrosion-resistant
CHH32	And wear-resisting
Siliceous	low alloy	CHS5 CHS5SH	Heat-resistant
high-alloy	CHS13 CHS15 CHS17 CHS15M4 CHS17M3	Corrosion-resistant in liquid medium
Aluminum	low alloy	CHJUHSH	Heat-resistant
high-alloy	CHJU6S5 CHJU7H2	And wear-resisting
CHJU22SH CHJU30	Heat-resistant and wear-resistant at high temperature
Manganese	high-alloy	CHG6S3SH CHG7H4	Wear-resistant
CHG8D3	Low, wear-resistant
Nickel	low alloy	CHNHT CHNHMD CHNMSH	Corrosion-resistant in gaseous environments of internal combustion engines
CNDMX	Corrosion-resistant in gaseous environments of internal combustion engines, high tensile strength
CHN2H CHN4H2	Wear-resistant
CHN3HMDSH	Wear-resistant, high tensile strength
high-alloy	CHN4H2	Wear-resistant
CHN11G7SH ЧН15ДЗШ	High-temperature and low
CHN15D7	Durable engines and low
CHN19H3SH	High-temperature and low
CHN20D2SH	Heat-resistant, cold-resistant, low

Note. In the designation of grades of pig iron the letters mean: H — cast iron; alloying elements: — chromium, — silicon, G — manganese, N — Nickel, D — copper, M molybdenum, T — titanium P — phosphorus, s — aluminium; letter W indicates that the graphite in the cast iron has a spherical shape.

The figures after the letters indicate the approximate mass fraction of the main alloying elements.


Cast irons are divided into types and brands on the prevalence of doping and by appointment.

Application, operational and mechanical properties of cast irons are given in appendices 1, 3.

(Changed edition, Rev. N 1).

1.2. The chemical composition of an alloy cast iron shall conform to the requirements specified in table.2.

Table 2

Chemical composition of cast irons

Brand of cast iron	Mass fraction, %
carbon kind	cream niya	Mar Ganz	Foz fora	sulfur	chrome	Nickel	copper	Vana- Diya	molyb- Dan	titanium	Alu- MINIA
no more
CHH1	3,0−3,8	1,5−2,5	1,0	0,30	0,12	0,40−1,00	-	-	-	-	-	-
CHH2	3,0−3,8	2.0 to 3.0	1,0	0,30	0,12	1,01−2,00	-	-	-	-	-	-
CHH3	3,0−3,8	2,8−3,8	1,0	0,30	0,12	2,01−3,00	-	-	-	-	-	-
CHH3T	2,6−3,6	0,7−1,5	1,0	0,30	0,12	2,01−3,00	-	0,5−0,8	-	-	0,7−1,0	-
CHH9N5	2,8−3,6	1,2−2,0	0,5−1,5	0,06	0,10	8,0−9,50	4,0−6,0	-	-	0,0−0,4	-	-
CHH16	1,6−2,4	1,5−2,2	1,0	0,10	0,05	13,0−19,0	-	-	-	-	-	-
CHH16M2	2,4−3,6	0,5−1,5	1,5−2,5	0,10	0,05	13,0−19,0	-	1.0 to 1.5	-	From 0.5−2.0*	-	-
CHH22	2,4−3,6	0,2−1,0	1,5−2,5	0,10	0,08	19,0−25,0	-	-	0,15- 0,35	-	0,15- 0,35	-
CHH22S	0,6−1,0	For 3.0−4.0	1,0	0,10	0,08	19,0−25,0	-	-	-	-	-	-
CHH28	0,5−1,6	0,5−1,5	1,0	0,10	0,08	25,0−30,0	-	-	-	-	-	-
CHH28P	1,8−3,0	1,5−2,5	1,0	0,8−1,5	0,08	25,0−30,0	-	-	-	-	-	-
CHH28D2	2,2−3,0	0,5−1,5	1,5−2,5	0,10	0,08	25,0−30,0	0,4−0,8	1,5−2,5	-	-	-	-
CHH32	1,6−3,2	1,5−2,5	1,0	0,10	0,08	30,0−34,0	-	-	-	-	0,1−0,3	-
CHS5	Of 2.5−3.2	4,5−6,0	0,8	0,30	0,12	0,5−1,0	-	-	-	-	-	-
CHS5SH	Is 2.7−3.3	4.5 to 5.5	0,8	0,10	0,03	0,0−0,2	-	-	-	-	-	0,1−0,3
CHS13	0,6−1,4	12,0−14,0	0,8	0,10	0,07	-	-	-	-	-	-	-
CHS15	0,3−0,8	14,1−16,0	0,8	0,10	0,07	-	-	-	-	-	-	-
CHS15M4	0,5−0,9	14,0−16,0	0,8	0,10	0,10	-	-	-	-	For 3.0−4.0	-	-
CHS17	0,3−0,5	16,1−18,0	0,8	0,10	0,07	-	-	-	-	-	-	-
CHS17M3	0,3−0,6	16,0−18,0	1,0	0,30	0,10	-	-	-	-	2.0 to 3.0	-	-
CHJUHSH	3,0−3,8	2.0 to 3.0	0,5	0,10	0,03	0,4−1,0	-	-	-	-	-	0,6−1,5
CHJU6S5	1,8−2,4	4,5−6,0	0,8	0,30	0,12	-	-	-	-	-	-	5,5−7,0
CHJU7H2	2,5−3,0	1,5−3,0	1,0	0,30	0,02	1,5−3,0	-	-	-	-	-	5,0−9,0
CHJU22SH	1,6−2,5	1,0−2,0	0,8	0,20	0,03	-	-	-	-	-	-	19,0- 25,0
CHJU30	1,0−1,2	0,0−0,5	0,7	0,04	0,08	-	-	-	-	-	0,05- 0,12	29,0- 31,0
CHG6S3SH	2,2−3,0	2,0−3,5	4,0−7,0	0,06	0,03	0,0−0,15	-	-	-	0,5−1,0	-	0,5−1,5
CHG7H4	3,0−3,8	1,4−2,0	6,0−8,0	0,10	0,05	3,0−5,0	-	-	-	-	-	-
CHG8D3	3,0−3,8	2.0 to 2.5	7,0−9,0	0,30	0,10	-	0,8−1,5	2,5−3,5	-	-	-	0,5−1,0
CHNHT	2,7−3,4	1,4−2,0	A 0.8−1.6	0,3−0,6	0,15	0,2−0,6	0,3−0,7	-	-	-	0,05- 0,12	-
CHNHMD	2,8−3,2	1,6−2,0	0,8−1,2	0,15	0,12	0,2−0,7	0,7−1,6	0,2−0,5	-	0,2−0,7	-	-
CHNHMDSH	3.0 to 3.6	2,0−2,8	0,6	0,08	0,03	0,2−0,4	0,6−1,0	0,5−0,8	-	0,2−0,6	-	-
CHNMSH	2,8−3,8	1,7−3,2	0,8−1,2	0,10	0,03	0,0−0,1	0,8−1,5	-	-	0,3−0,7	-	-
CHN2H	3.0 to 3.6	1,2−2,0	0,6−1,0	0,25	0,12	0,4−0,6	1,5−2,0	-	-	-	-	-
CHN3HMDSH	3.0 to 3.6	2,0−2,8	0,8	0,08	0,03	0,2−0,5	2,5−4,5	0,7−1,5	-	0,4−1,0	-	-
CHN4H2	2,8−3,6	0,0−1,0	0,8−1,3	0,30	0,15	0,8−2,5	3,5−5,0	-	-	-	-	-
CHN11G7SH	2,3−3,0	1,8−2,5	Of 5.0−8.0	0,08	0,03	1,5−2,5	10,0−12,0	-	-	-	-	-
CHN15D7	2,2−3,0	2,0−2,7	0,5−1,6	0,30	0,10	1,5−3,0	14,0−16,0	Of 5.0−8.0	-	-	-	-
CHN15D3SH	2,5−3,0	1,4−3,0	1,3−1,8	0,08	0,03	0,6−1,0	14,0−16,0	3,0−3,5	-	-	-	-
CHN19H3SH	2,3−3,0	1,8−2,5	1.0 to 1.6	0,10	0,03	1,5−3,0	18,0−20,0	-	-	-	-	-
CHN20D2SH	1,8−2,5	3,0−3,5	1,5−2,0	0,03	0,01	0,5−1,0	19,0−21,0	1,5−2,0	-	-	-	0,0−0,3

_______________
* When the mass fraction of chromium 13−16% 16−19% of the recommended mass fraction of molybdenum, respectively, 2,0−1,5% 1,5−0,5%.

Note. 1. Low alloy cast irons of all types, as well as high-alloy manganese and Nickel with the exception of brands CHN2H, ЧН3Т, CHG7H4, CHN4H2 modify 75% ferrosilicon or other graditissimi additives.

2. In chromium cast irons and cast irons with nodular graphite is allowed the mass fraction of Nickel to 1.0% and copper up to 1.5% imposed prirodopolzovaniyu iron doped steel scrap or a magnesium alloy.

(Amendment).


At the request of the consumer used brand Nickel cast irons in accordance with Annex 4.

1.3. Brand of cast iron is determined by chemical composition.

Allowed to control and special mechanical properties, hardness, shape of graphite; the need for and frequency of monitoring set in the normative-technical documentation on the casting.

1.4. In nodular cast iron shall not be less than 80% of the inclusions of spherical shape.

1.5. Heat treatments of cast iron are given in Appendix 2. The need for heat treatment set to the normative-technical documentation on the casting.

1.6. Mechanical properties of cast iron, is determined by the demand of the consumer must match the values specified in table.3 or in table.2 of Annex 4.

Table 3

Mechanical properties of cast iron

Mark iron	Tensile strength, MPa, not less		Elongation , %	Hardness NV
stretching	bending
CHH1	170	350	-	207−286
CHH2	150	310	-	207−286
CHH3	150	310	-	228−364
CHH3T	200	400	-	440−590
CHH9N5	350	Seven hundred	-	490−610
CHH16	350	700	-	400−450
CHH16M2	170	490	-	490−610
CHH22	290	540	-	330−610
CHH22S	290	540	-	215−340
CHH28	370	560	-	215−270
CHH28P	200	400	-	245−390
CHH28D2	390	690	-	390−640
CHH32	290	490	-	245−340
CHS5	150	290	-	140−300
CHS5SH	290	-	-	228−300
CHS13	100	210	-	290−390
CHS15	60	170	-	290−390
CHS17	40	140	-	390−450
CHS15M4	60	140	-	390−450
CHS17M3	60	100	-	390−450
CHJUHSH	390	590	-	187−364
CHJU6S5	120	240	-	235−300
CHJU7H2	120	170	-	240−286
CHJU22SH	290	390	-	241−364
CHJU30	200	350	-	364−550
CHG6S3SH	490	680	-	219−259
CHG7H4	150	330	-	390−450
CHG8D3	150	330	-	176−285
CHNHT	280	430	-	201−286
CHNHMD	290	690	-	201−286
CHNHMDSH	600	-	-	270−320
CHNMSH	490	-	2	183−286
CHN2H	290	490	-	215−280
CHN3HMDSH	550	-	-	350−550
CHN4H2	200	400	-	400−650
CHN11G7SH	390	-	4	120−255
CHN15D7	150	350	-	120−297
CHN15D3SH	340	-	4	120−255
CHN19H3SH	340	-	4	120−255
CHN20D2SH	500	-	25	120−220

Note. The strength and hardness of high chromium, manganese and Nickel cast irons after normalization and low-temperature vacation.

1.7. Brand heat-resistant cast iron should have a resistance okalinoobrazovanie not more than 0.5 g/m·h the increased weight and growth not exceeding 0.2% at the operating temperature for 150 h.

1.2−1.7. (Added, Rev. N 1).

Sec. 2, 3 (Deleted, Rev. N 1).

4. CONTROL METHODS

4.1. (Deleted, Rev. N 1).

4.2. Samples for the determination of chemical composition of cast iron are selected according to GOST 7565.

In the smelting of iron in cupola furnace samples to determine the chemical composition selected in the middle of the melting in conditions of steady continuous process. The sample marked number smelting. Chemical composition is determined on one sample.

Allowed measurement of the chemical composition of the casting or billet for mechanical testing.

4.3. Chemical analysis of cast iron is carried out according to GOST 28473, GOST 2604.1 — 2604.11 GOST, GOST 2604.13. For the same type of casting iron of the same brand allowed the use of physical methods to determine the composition.

4.4. Tensile testing of cast irons graphitemoderated spend on one of samples according to GOST 27208.

Tensile test of cast iron with nodular graphite is carried out on the same cylindrical sample 10 mm in diameter with design length of 50 mm according to GOST 1497.

Samples for the determination of tensile strength and cut from separately cast bars, the shape and size of which is given on features.1 and 2, as well as from a special tide to casting or directly from the castings. The size and location of the tides in the form relative to the casting, and the cutting out of samples set in the reference document for concrete casting.

Damn.1

_______________
* Selectable multiple of the length and number of samples.

Damn.2

Allowed by agreement between manufacturer and consumer for the same type of castings from cast iron of the same brand to control the strength by nondestructive methods.

4.5. The bend test is carried out on separately cast samples with a diameter of 30 mm and a length of 300 mm according to GOST 27208.

4.6. In the manufacture of cylindrical hollow casting may be performed module testing ring of strength on a single sample according to GOST 9583 or GOST 621. The dimensions of samples for the determination of the module ring of strength established by agreement between manufacturer and consumer.

4.7. Hardness on the Brinell hardness is carried out according to GOST 27208 and GOST 9012 on castings or samples for mechanical testing. The hardness of wear-resistant castings are required to determine the Rockwell, Vickers and Brinell — ball made of tungsten carbide.

By agreement with the consumer allowed to determine the hardness of identical castings of the same brand of cast iron by physical methods.

4.8. (Deleted, Rev. N 1).

4.9. The selection and preparation of samples, evaluation of the shape of graphite inclusions in iron castings with nodular graphite is carried out at a magnification of 100GOST 3443.

4.10. Rotoscoliosis of cast iron is determined on three samples with a length of 100−150 mm and a diameter of 20−25 mm change of length (%) for 150 hours of testing at a given temperature.

4.10.1. The definition of the scaling is carried out according to GOST 6130.

In graphitemoderated brands of cast iron is necessary to consider the reduction of mass due to decarburization. Allowed increase in height of cylindrical specimens K10 and K15 to 50 mm.

Sec. 5 (Deleted, Rev. N 1).

ANNEX 1 (recommended). The basic operational properties and application of alloy cast iron

ANNEX 1
Recommended

Brand of cast iron	Maintenance property Chugunov	Application
CHH1	Increased corrosion in the gas, air and alkaline media in terms of friction and wear. Heat-resistant in air up to 773 K	Cooling plates of blast furnaces, grate bars for sinter machines, coke items of equipment serouglerod retort, the parts of gas turbine engines and compressors, burners, molds, glass-blowing, the exhaust manifolds of diesel engines
CHH2	Increased corrosion in the gas, air and alkaline media in terms of friction and wear. Heat-resistant in air to 873 K	The grate beams and horn for sinter machines, the details of the contact devices of chemical equipment, the grid of tube furnaces of oil refineries, parts for turbochargers, parts steklomassy. Details of heat treatment furnaces, pots, grates, parts steklomassy, facing the quenching plates of cars
CHH3	Increased corrosion in the gas, air and alkaline media in terms of friction and wear. Heat-resistant in air up to 973 K.
CHH3T	Increased resistance against abrasive wear and abrasion in pulpo — and fileprovider, pumps	Wear-resistant parts of hydraulic machines, which pump abrasive mixture, lining palarivattom etc.
CHH9N5	High resistance against abrasive wear and abrasion in the mills, pescaito and dreameth	Wear-resistant parts of hydraulic machines, which pump abrasive mixture of the lining of palarivattom etc., grinding details of coal — and ore-grinding mills, bucket bashmetov, sklesi, heat, etc.
CHH16M2	The greatest resistance to impact-abrasive wear and abrasion in the mills, shot-blasting and shot-blasting chambers	Wear-resistant parts of hydraulic machines, which pump abrasive mixture, lining palarivattom etc., grinding details of coal — and ore-grinding mills, bucket bashmetov, sklesi, heat, is highly resistant blades blast wheel impeller
CHH16	Heat-resistant in air up to 1173 K, wear resistance at normal and elevated temperatures, resistant to inorganic acids, high concentration	Reinforcement of chemical engineering, furnace fittings, parts of cement kilns
CHH22, CHH28D2	Highly resistant against abrasive wear and galling in the conditions of milling equipment, screens and slezov, sintering machines and sand — blasting chambers and at elevated temperatures	Wear-resistant parts of hydraulic machines, which pump abrasive mixture, lining palarivattom etc., grinding details of coal — and ore-grinding mills, bucket bashmetov, sklesi, heat, highly resistant to blast the blades of the impellers, inserts for reinforcement bars of the secondary cooling zone of continuous casting plants steel, linings of mills, etc.
CHH22S	Increased corrosion resistance in hot gas environments at temperatures up to 1273 K, high acid resistance and resistance to intergranular corrosion	Parts, not exposed to permanent and variable loads. Details of the equipment for nitric and phosphoric acid, furnace fittings, etc.
CHH28, CHH32	High corrosion resistance in acid solutions (nitric, sulfuric, phosphoric, hydrochloric, acetic, lactic, etc.), alkalis and salts (ammonium nitrate, ammonium sulfate, chloride of lime, chloride of iron, nitrate), in gases containing sulphur or SO, NO Heat resistance to temperatures 1373−1423 K. High resistance to abrasive wear	Parts, operating at small mechanical loads in the environment SOand SOin alkalis high concentration of nitric acid solutions and molten salts at temperatures up to 1273 K. the Details of centrifugal pumps, furnace fittings, retort for carburizing, nozzles, cylinders, casing spools, strokes furnaces pyrites, etc. Nozzles for sand-blasting machines and other parts exposed to abrasive wear. Details of food equipment, provodkoy fittings light mills
CHH28P	The high oxidation resistance after annealing in zinc melt at temperatures up to 823 K	Related parts of the friction pairs, working in a zinc melt units continuous hot-dip galvanizing
CHS5	Refractory in flue gases and air to 973 K	Grates, liners for furnaces in the cement industry, serouglerod retort
CHS5SH	Refractory in flue gases and air up to 1073 K	Flue fittings, boilers, distantsionnaya the details of the superheaters of boilers, gas nozzle, bottom plates heat-treatment furnaces
CHS13 CHS15 CHS17	High corrosion resistance at temperatures up to 473 K, the effects of concentrated and diluted acids, alkalis, salts in addition to hydrogen fluoride and fluoride compounds. Do not allow sharply variable and shock loads and temperature changes	Simple configuration, details of centrifugal and reciprocating pumps, compressors and valves, pipes and fittings to valves, heat exchangers and other items of chemical equipment
CHS15M4 CHS17M3	A particularly high corrosion resistance in sulphuric, nitric, hydrochloric acids of different concentration and temperature, aqueous solutions of alkalis and salts at the local temperature drop up To 30 in body parts in the absence of dynamic and variable and pulsating loads	Simple configuration, details of centrifugal and reciprocating pumps, compressors and valves, pipes and fittings to valves, heat exchangers and other items of chemical equipment
CHJUHSH	Heat-resistant in air up to 923 K, which is resistant against abrasion	Molds for glass products, part, heating equipment, roller finishing stands of rolling mills
CHJU7H2	Heat-resistant in air up to 1023 K, which is resistant against abrasion	Details of the furnace rebar
CHJU6S5	Heat-resistant in air up to 1073 K, corrosion-resistant in a medium containing sulphur compounds, resistant to sudden changes of temperature	Castings operating at temperatures up to 1073 K
CHJU22SH	Heat-resistant in a medium containing sulfur, sulfur dioxide, and oxides of vanadium and water vapor. In air to 1373 K. the heat-resistant High strength at normal and high temperatures	Details of valves of boilers, distantsionnaya the details of the superheaters of the boilers, the details of the pyrite roasting furnaces, heaters, rotary hearth furnaces, grate sintering machines
CHJU30	Heat-resistant in air to 1373 K. Resistant against wear	Details of furnaces pyrites
CHG6S3SH, CHG7H4	Wear resistant in abrasive environment and anti-abrasion dust and slurry pipelines, mills, etc.	Wear-resistant parts grinding equipment parts of pumps, mills lining, hard sandblasting cameras
CHG8D3	Non-magnetic, wear-resistant cast iron for use in high temperatures	Non-magnetic parts associated friction parts fittings
CHNHT	High mechanical properties, wear resistance and corrosion in slightly alkaline and gaseous media (products of fuel combustion, technical oxygen) and water solutions	Of piston ring blanks piston compression and oil control rings, valve seats and valve guides of diesel engines and engine compressors. Details smoothing presses and grinding mills, paper machines
CHNHMD	High mechanical properties, wear resistance and corrosion in slightly alkaline and gaseous media (products of fuel combustion, technical oxygen) and water solutions	Blocks and cylinder heads, exhaust pipes of internal combustion engines, steam engines and turbines. Pistons and cylinder liners, steam engines, diesel and marine diesel engines, parts and oxygen gas motorcompressors, parts of paper machines
CHN2H	High mechanical properties, wear resistance and corrosion in slightly alkaline and gaseous media (products of fuel combustion, technical oxygen), water solutions of caustic soda melts	Different types of gears, cylinders, engines, grinding wheels, throttles, cooling cylinders and shafts paper, Board and drying machines, matrix stamping presses
CHNMSH	Superior mechanical properties and heat resistance at the operating temperature to 773 K	The tops and bottoms of cylinders of diesel engines, heads, pistons, piston rings of piston ring blanks, cooling cylinders and shafts paper, Board and drying machines
CHN4H2	High resistance against abrasive wear and scuffing	Wear-resistant machine parts, pump abrasive mixtures, linings of mills, palarivattom grinding rolls and balls, nozzles, sklesi, thunder
CHN15D3SH, CHN15D7	High corrosion and erosion resistance to alkalis, weak acid solutions, sulfuric acid of any concentration at temperatures above 323 K, in sea water, in the environment of superheated steam. Cast iron has a high coefficient of thermal expansion, can be paramagnetic at low chromium content	Pumps, valves and other parts of the oil, chemical and petrochemical industry and valve industry. Non-magnetic castings of the electrical industry. Insertion of cylinder liners, heads, pistons, valve seats and valve guides and exhaust manifolds of internal combustion engines
CHN19H3SH CHN11G7SH	The heat resistance at temperatures up to 873 K, high corrosion and erosion resistance to alkalis, weak acid solutions, sulfuric acid of any concentration at temperatures above 323 K in sea water, in the environment of superheated steam. Has a high coefficient of thermal expansion, can be paramagnetic at low chromium content	Exhaust manifolds, valve guides, casings of turbochargers gas turbines, head, pistons, pump bodies, valves and non-magnetic parts
CHN20D2SH	High mechanical properties at temperatures up to 173 K. the Cast iron has high toughness of at least 3.0 Daj/cmon the samples with a sharp notch (Charpy) and can be plastically deformed in the cold state	Pumps and other items of oil and petrochemical industry, the details of the fuel valve
CHNHMDSH	High mechanical properties, wear resistance and corrosion in slightly alkaline and gaseous media (products of fuel combustion, technical oxygen) and water solutions	Blocks and cylinder heads, exhaust pipes of internal combustion engines, steam engines and turbines. Pistons and cylinder liners, steam engines, diesel and marine diesel engines, parts and oxygen gas motorcompressors, parts of paper machines.
ONSGMLS	High mechanical properties, wear resistance and corrosion in slightly alkaline and gaseous media (products of fuel combustion, technical oxygen), water solutions of caustic soda melts	Different types of gears, cylinders, engines, grinding wheels, throttles, cooling cylinders and shafts paper, Board and drying machines, matrix stamping presses.
L-NiMn 13 7	Is not magnetic	Cap that creates the pressure in the turbine-generator installations, the switchgear housings, flanges, insulators, clamps and pipes
L-NiCuCr 15 6 2	Has good corrosion resistance, especially in alkaline media, in dilute solutions of acids, in sea water and in salt solutions. Has good heat resistance, good bearing properties, high thermal expansion, has no magnetic properties at low content of chromium	Pumps, valves, furnace components, bushings for the ring holders of the metal piston and pistons made of light alloys.
L-NiCuCr 15 6 3	Possesses the best resistance to corrosion and erosion than brand L-NiCuCr Л563	The same
L-NiCr 20 2	Has properties similar to Marche L-NiCuCr 15 6 2, but with higher corrosion resistance in alkaline environments. High coefficient of thermal expansion	For those products that brand L-NiCuCr 15 6 2, but preferable for pumps for alkali, for vessels, which contain caustic alkali; used in soap industry, food industry and also in industries for the production of artificial silk and plastics. Suitable in cases where the required materials that do not contain copper
L-NiCr 20 3	Has the same properties as mark L-NiCr 20 2, but has a high resistance to erosion, high heat resistance and a high degree of expansion	In the same products as the mark L-NiCr 20 2, but preferably for use in high temperatures
L-NiSiCr 20 5 3	Has good corrosion resistance, even in conditions of dilute sulfuric acid. More heat resistant than grade L-NiCr 20 2 and mark L-NiCr 20 3	Parts of pumps, castings of valves used in industrial furnaces
L-NiCr 30 3	Is resistant to heat and thermal shock to a temperature of 800 °C. Good corrosion resistance at high temperatures, high resistance to erosion in wet steam and salt slurry; average degree of thermal expansion	Pumps, pressure vessels, valves, parts of filtering devices, exhaust pipes and casings turboiron devices
L-NiSiCr 30 5 5	Has good resistance to corrosion, erosion and heat resistance; average degree of thermal expansion	Used for components of pumps, valves used for industrial furnaces
L-Ni 35	Is resistant to thermal stress; low degree of thermal expansion	Details, possessing the ability to retain the dimensions (e.g. machines), scientific instruments, glass forms
S-Ni Mn 13 7	Is not magnetic	Cap that creates the pressure in the turbine-generator installations, the switchgear housings, flanges, insulators, clamps and pipes.
S-NiCr 20 2	In composition, the corrosion resistance and heat resistance similar to Marche L-NiCr 20 2	Pumps, valves, compressors, bushings, housings turbochargers, exhaust piping
S-NiCr 20 3	Properties similar to Marche S-NiCr 20 2, but more heat resistant and possesses the best resistance to erosion	The same
S-NiSiCr 20 5 2	Has good resistance to corrosion in dilute sulfuric acid. Good heat-resistance.	Component parts for valves, pumps, casting, used in industrial furnaces that are subject to high mechanical stress
S-Ni 22	High coefficient of thermal expansion; a lower corrosion resistance and lower heat resistance than that of the brand L-NiCr 20 2. Good features dynamic influence down to minus 100 °C. the Magnetic properties has not	Pumps, valves, compressors, bushings, housings turbochargers, exhaust piping
S-NiMn 23 4	A very high coefficient of thermal expansion. Good features dynamic influence down to minus 196 °C. the Magnetic properties has not	Castings in refrigeration for use to a temperature of minus 196 °C.
S-NiCr 30 1	It possesses properties similar to the properties of the brand S-NiCr 30 3, good reference features	Pumps, boilers, valves, parts of filtering devices, exhaust pipes, housings for turbochargers
S-NiCr 30 3	It possesses properties similar to the properties of the brand L-NiCr 30 3. Has a high creep resistance, adding 1% by weight of molybdenum	Pumps, boilers, valves, parts of filtering devices, exhaust pipes, casings of turbochargers
S-NiSiCr 30 5 5	It possesses properties similar to the properties of the brand L-NiSiCr 30 5 5. Has a high creep resistance, adding 1% by weight of molybdenum	Parts of pumps, valves, castings used in industrial furnaces subject to high mechanical stress
S-Ni 35	Like Marche L-Ni 35, has a small coefficient of thermal expansion, but more resistant to thermal shock	Details, possessing the ability to retain the dimensions (e.g. machines), scientific instruments, glass forms
S-NiCr 35 3	It possesses properties similar to the properties of the brand S-35 Ni, high creep resistance when adding 1% by weight of molybdenum	Parts of gas turbine housings, glass forms

APPENDIX 2 (recommended). Types of heat treatment of castings from alloy cast iron

ANNEX 2
Recommended

Heat treatment and its purpose	Mode*			Cast iron
Temperature, K	Exposure, h	Cooling
Graphicsimage high temperature annealing to reduce the hardness and content of structurally free cementite	1173−1223	6−12	With oven	Low alloy cast irons of all types, with the exception of wear-resistant
1133−1153	1−2	With oven	High-alloy silicon
Homogenizing extract with normalization to reduce the magnetic permeability, hardness and increasing the ductility and strength	1253−1313	4−6	In air (in oil or liquid glass)	High alloy cast irons manganese and Nickel, excluding stamps and CHN4H2 CHG7H4
Normalization to increase the hardness of the castings	1323−1373	1−2	Air	High-chromium wear-resistant
1133−1153	1−2	Air	Low-alloy chromium, aluminum and Nickel cast irons and abrasion resistant CHG7H4, CHN4H2
Leave after casting or normalization for removal of internal stress	473−523	2−3	With oven	For all kinds of cast iron, except for chromium and vysokohromistyh
793−833	3−4	With oven	For high-alloy chromium cast iron and aluminum
Annealing and high tempering to reduce the hardness and improve machinability	963−1023	6−12	With oven	High alloy cast irons
933−963	6−12	With oven	Low-alloyed cast irons
Vacation to reduce the creep in high-temperature casting (increased permeability due to deposition of fine cementite)	723−923 (30−50° above the operating temperature)	4−6	With oven	Nickel cast irons with spheroidal graphite

_______________
* Heating time depends on the size and weight of details.

APPENDIX 3 (recommended)

APPENDIX 3
Recommended


Table 1

Indicators of tensile strength of heat-resistant cast irons at elevated temperatures
(short test)

Brand of cast iron	The limit of the tensile strength, MPa, at the temperature To
773	873	973	1073	1173
CHH1	196	147	68	29	-
CHH2	196	147	78	29	-
CHH3	167	147	88	29	-
CHH16	440	294	137	88	-
CHH32	392	294	196	98	68
CHS5	118	98	49	19	-
CHS5SH	440	382	118	39	-
CHJUHSH	343	235	130	78	-
CHJU7H2	294	226	157	29	-
CHJU6S5	118	98	49	19	-
CHJU22SH	245	275	168	137	78

Table 2

Mechanical properties (short-term test) and a normal module of elasticity of cast irons
nodular at 873 K

Brand of cast iron	The limit of the tensile strength, MPa	Yield strength tensile, MPa	Elongation, %	Toughness, Daj/cm	The normal elasticity modulus, MPa
not less than
CHN19H3SH	250	180	2,0	2,0	11·10
CHN11G7SH	300	180	10	2,0	12·10
CHJU22SH	350	-	0,5	0,5	13·10

Table 3

Long-term strength and creep rates of cast irons with nodular graphite in high temperature

Brand of cast iron	Long-term strength at 873 K		The rate of creep, %/h at a voltage of 40 MPa
The voltage MPa	The time to failure, h
CHN19H3SH	120	1000	1,0·10(873 K) 2,0·10(973 K)*
CHN11G7SH	120	1000	1,8·10(873 K)
CHJU22SH	100	1000	4,0·10(973 K)*

_______________
* The rate of creep at a temperature of 973 K and a voltage of 30 MPa.

ANNEX 4 (required)

ANNEX 4
Mandatory


Table 1

The chemical composition of the Nickel cast iron with lamellar and nodular graphite

Marking stamps	Chemical composition, %
With no more than	Si	Mn	Ni	Cr	Cu	P
no more
L-NiMn 13 7	3,0	From 1.5 to 3.0	From 6.0 to 7.0	12.0 to 14.0	Not more than 0.2	0,5	-
L-NiCuCr 15 6 2	3,0	«To 1.0» to 2.8	«0,5» 1,5	«To 13.5» to 17.5	From 1.0 to 2.5	From 5.5 to 7.5	-
L-NiCuCr 15 6 3	3,0	«To 1.0» to 2.8	«0,5» 1,5	«To 13.5» to 17.5	«2,5» 3,5	«5,5» 7,5	-
L-NiCr 20 2	3,0	«To 1.0» to 2.8	«0,5» 1,5	«To 18.0» to 22.0	«Of 1.0» to 2.5	0,5	-
L-NiCr 20 3	3,0	«To 1.0» to 2.8	«0,5» 1,5	«To 18.0» to 22.0	«2,5» 3,5	0,5	-
L-NiSiCr 20 5 3	2,5	«A 4.5» and 5.5	«0,5» 1,5	«To 18.0» to 22.0	«1,5» 4,5	0,5	-
L-NiSr 30 3	2,5	«1,0» 2,0	«0,5» 1,5	«28,0» 32,0	«2,5» 3,5	0,5	-
L-NiSiCr 30 5 5	2,5	«5,0» 6,0	«0,5» 1,5	«29,0» 32,0	«A 4.5» and 5.5	0,5	-
L-Ni 35	2,4	«1,0» 2,0	«0,5» 1,5	«34,0» 36,0	Not more than 0.2	0,5	-
S-NiMn 13 7	3,0	«2,0» 3,0	«The 6.0» to 7.0	«To 12.0» to 14.0	Not more than 0.2	0,5	0,080
S-NiCr 20 2	3,0	«1,5» 3,0	«0,5» 1,5	«To 18.0» to 22.0	From 1.0 to 2.5	0,5	0,080
S-NiCr 20 3	3,0	«1,5» 3,0	«0,5» 1,5	«To 18.0» to 22.0	«2,5» 3,5	0,5	0,080
S-NiSiCr 20 5 2	3,0	«A 4.5» and 5.5	«0,5» 1,5	«To 18.0» to 22.0	«Of 1.0» to 2.5	0,5	0,080
S-Ni 22	3,0	«Of 1.0» to 3.0	«1,5» 2,5	«21,0» 24,0	Not more than 0.5	0,5	0,080
S-NiMn 23 4	2,6	«1,5» 2,5	«A 4.0» to 4.5	«22,0» 24,0	Not more than 0.2	0,5	0,080
S-NiCr 30 1	2,6	«1,5» 3,0	«0,5» 1,5	«28,0» 32,0	From 1.0 to 1.5	0,5	0,080
S-NiCr 30 3	2,6	«1,5» 3,0	«0,5» 1,5	«28,0» 32,0	«2,5» 3,5	0,5	0,080
S-NiSiCr 30 5 5	2,6	«5,0» 6,0	«0,5» 1,5	«28,0» 32,0	«A 4.5» and 5.5	0,5	0,080
S-Ni 35	2,4	«1,5» 3,0	«0,5» 1,5	«34,0» 36,0	Not more than 0.2	0,5	0,080
S-NiCr 35 3	2,4	«1,5» 3,0	«0,5» 1,5	«34,0» 36,0	From 2.0 to 3.0	0,5	0,080

Note. In marks S-NiCr 30 3, S-NiSiCr 30 5 5, S-Ni 35 allowed of 0.8−1.1% Mo for creep speed of less than 0.5·10%/h at 600 °C and 40 MPa or 1.0·10%/h at 700 °C and 30 MPa.

Table 2

The mechanical properties of Nickel cast irons with lamellar and spheroidal graphite

Brand	Mechanical property
Yield strength tensile , MPa	Yield strength MPa	Elongation , %	The modulus of elasticity , GPA	Hardness Brinell NV
L-NiMn 13 7	140−220	-	-	70−90	120−150
L-NiCuCr 15 6 2	170−210	-	2	85−105	140−200
L-NiCuCr 15 6 3	190−240	-	1−2	98−113	150−250
L-NiCr 20 2	170−210	-	2−3	85−105	120−215
L-NiCr 20 3	190−240	-	1−2	98−113	160−250
L-NiSiCr 20 5 3	190−280	-	2−3	110	140−250
L-NiCr 30 3	190−240	-	1−3	98−113	120−215
L-NiSiCr 30 5 5	170−240	-	-	105	150−210
L-Ni 35	120−180	-	1−3	74	120−140
S-NiMn 13 7	390−460	210−260	15−25	140−150	130−170
S-NiCr 20 2	370−470	210−250	7−20	112−130	140−200
S-NiCr 20 3	390−490	210−260	7−15	112−133	150−225
S-NiSiCr 20 5 2	370−430	210−260	10−18	112−133	180−230
S-Ni 22	370−440	170−250	20−40	85−112	130−170
S-NiMn 23 4	440−470	210−240	25−45	120−140	150−180
S-NiCr 30 1	370−440	210−270	13−18	112−130	130−190
S-NiCr 30 3	370−470	210−260	7−18	92−105	140−200
S-NiSiCr 30 5 5	390−490	240−310	1−4	91	170−250
S-Ni 35	370−410	210−240	20−40	112−140	130−180
S-NiCr 35 3	370−440	210−290	7−10	112−123	140−190