Steel 09G2S (09Г2СА)

Designation

Name	The value
Designation GOST Cyrillic	09Г2С
Designation GOST Latin	09G2C
Transliteration	09G2S
By chemical elements	09Mn2С

Name	The value
Designation GOST Cyrillic	09Г2СА
Designation GOST Latin	09G2CA
Transliteration	09G2SA
By chemical elements	09Mn2С

Description

Steel 09G2S is used: for the manufacture of different parts and welded steel elements operating at temperatures from -70 to +425 °C; steam boilers, apparatus and vessels working under pressure at a temperature of from -70 to +450 °C; responsible sheet welded structures the chemical and oil mechanical engineering, shipbuilding; details of pipeline valves after quenching and tempering; welding transitions, flanges, welded tees and other fittings of pipelines as with the operating temperature from -60 °C to +350 °C; as the base layer in the manufacture of hot-rolled dual-layer corrosion-resistant sheets; hot rolled pan and odnoselchanka profiles for agricultural machinery; cold-resistant seamless hot-deformed pipes for gas-lift systems and construction of gas fields; electrically welded pipes with a diameter of 530 mm strength group C50 for construction of gas pipelines, oil pipelines and oil product pipelines; large containers; equipment and pipelines of nuclear power installations; steel moulded profile for mining equipment.

Note

Steel low-alloy silico-manganese. The degree of deoxidation — SP.
Steel 09G2S provides classes strength long products, strip and shaped rolled KP 265 with a thickness from 20 to 100 mm, KP 295 with a thickness from 20 to 32 mm., KP 325 with a thickness of up to 20mm., KP 345 in thicknesses up to 10 mm.
Steel 09G2S provides strength grade sheet, universal broadband rental and roll-formed profiles KP 265 with plate thickness of from 20 to 160 mm., KP 295 with a thickness from 20 to 32 mm., KP 325 with a thickness of 10 to 20 mm., KP 345 in thicknesses up to 10 mm. without the use of additional hardening treatment.
When hardening treatment (reglamentary or controlled rolling or accelerated cooling) comes rolled sections up to 60 mm. KP 315, and section from 10 to 32 mm CP 375.

Standards

Name	Code	Standards
Sheets and strips	В33	GOST 10885-85, TU 302.02.009-89, TU 14-105-410-87, TU 14-1-1824-76, TU 14-1-2072-77, TU 14-1-5034-91, TU 14-1-5241-93, TU 302.02.036-89, TU 05764417-014-94, TU 0900-004-05764417-99, TU 05764417-041-95, TU 05764417-038-95, TU 14-1-5265-94, TU 14-1-4431-88, TU 302.02.122-91
Bars and shapes	В22	GOST 1133-71, GOST 8240-97, GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 9234-74, GOST 11474-76, GOST 12492.1-90, GOST 12492.4-90, GOST 2590-2006, GOST 2591-2006, OST 5.9087-84, TU 14-15-146-85
Classification, nomenclature and General rules	В20	GOST 19281-89
Sheets and strips	В23	GOST 82-70, GOST 5520-79, GOST 17066-94, GOST 19903-74, GOST 19904-90, GOST 103-2006, GOST 19282-73, GOST 19903-90, TU 14-1-3023-80, TU 14-1-4632-93, TU 14-1-4667-89
Steel pipes and fittings to them	В62	GOST 8732-78, GOST 8734-75, GOST 9567-75, GOST 20295-85, GOST 24950-81, GOST 30563-98, GOST 30564-98, GOST 8733-87, GOST 8731-87, GOST Р 53383-2009, HUNDRED 79814898 105-2008, TU 14-3-1128-2000, TU 14-3-1393-86, TU 14-3-1473-87, TU 1380-001-08620133-93, TU 14-3-1618-89, TU 14-3P-63-2002, TU 14-3Р-1430-2007, TU 1380-001-08620133-05, TU 14-159-1128-2008, TU 14-159-339-2009, TU 14-3-1128-2005, TU 14-3Р-1471-2002, TU 1373-022-05757850-08, TU 14-161-184-2000, TU 14-3Р-44-2001, TU 1303-002-08620133-01, TU 14-158-146-2004, TU 14-3-1573-96, TU 14-3Р-1128-2007, TU 14-3-500-76, TU 14-3-1654-89, TU 1303-007-12281990-2015
Processing of metals by pressure. Forgings	В03	OST 26-01-135-81, ST ЦКБА 010-2004
Welding and cutting metals. Soldering, riveting	В05	OST 36-58-81, OST 26-260.453-92, OST 26-17-017-85
Thermal and thermochemical treatment of metals	В04	ST ЦКБА 026-2005
Blanks. Of the workpiece. Slabs	В31	TU 14-1-2379-78, TU 14-1-4992-91
Bars and shapes	В32	TU 14-1-5035-91, TU 14-2-849-89, TU 0950-090-00187895-96, TU 14-1-1271-75, TU 14-136-367-2008

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	As	Al	V	Ti	Nb
TU 14-1-2072-77	≤0.12	≤0.02	≤0.03	1.3-1.7	≤0.3	0.5-0.8	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.05	-	≤0.03	-
GOST 19282-73	≤0.12	≤0.04	≤0.035	1.3-1.7	≤0.3	0.5-0.8	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.05	-	≤0.03	-
GOST 17066-94	≤0.12	≤0.04	≤0.035	1.3-1.6	≤0.3	0.5-0.8	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.03	≤0.1	≤0.03	≤0.02
TU 14-1-5034-91	≤0.12	≤0.035	≤0.03	1.3-1.7	≤0.3	0.5-0.8	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.05	-	≤0.03	-
TU 14-159-1128-2008	≤0.12	≤0.025	≤0.03	1.3-1.7	≤0.3	0.5-0.8	≤0.3	Rest	≤0.3	≤0.008	≤0.08	≤0.05	-	≤0.03	-
TU 302.02.122-91	≤0.12	≤0.01	≤0.012	1.3-1.7	≤0.3	0.5-0.8	≤0.3	Rest	≤0.3	-	-	-	-	-	-
TU 14-158-146-2004	≤0.12	≤0.015	≤0.02	1.3-1.7	-	≤0.6	-	Rest	-	≤0.012	-	-	-	-	-

Fe is the basis.
According to GOST 17066-94, the mass fraction of arsenic is allowed up to 0.015%, with the mass fraction of phosphorus being not more than 0.030%.
According to GOST 19282-73, it is allowed to modify steel with calcium and rare-earth elements from the calculation of the introduction of not more than 0.02% calcium and 0.05% rare-earth elements into the metal.
According to GOST 19281-89 and GOST 19282-73, it is allowed to add aluminum and titanium from the calculation of the mass fraction in the rolled aluminum - no more than 0.050%, titanium - no more than 0.030%.
According to GOST 5520-79, the mass fraction of arsenic can be up to 0.15% in the smelting of steel from the Kerch ore, while the mass fraction of phosphorus should not be more than 0.030%. At the request of the consumer, the mass fraction of sulfur should not exceed 0.025, 0.030 or 0.035%, and phosphorus 0.030 or 0.035%. When steel is smelted in electric furnaces, the mass fraction of nitrogen must be ≤ 0.012%.
According to TU 302.02.122-91 the chemical composition is given for steel grades 09G2SA and 09G2S-Sh. The total content of sulfur and phosphorus should not be more than 0.020%. Steel grade 09G2S according to TU 302.02.122-91 is characterized by a mass fraction of the following elements: sulfur ≤ 0.030%, phosphorus ≤ 0.035%, with the total mass fraction of sulfur and phosphorus should not be more than 0.060%.
According to TU 14-3-1573-96 carbon equivalent of Se ≤ 0.46%.
According to TU 14-158-146-2004 the chemical composition is given for the ladle sample for the 1st level of the quality of the pipes. For pipes of the 2nd level of quality in the ladle sample, the mass fraction of sulfur is ≤ 0.010%, phosphorus ≤ 0.015%, nitrogen ≤ 0.010%.
According to TU 14-1-2072-77, the chemical composition is given for steel grade 09Г2С-Ш. When steel is smelted for consumable electrodes in electric steelmaking furnaces, the content of residual nitrogen in the metal is allowed up to 0.15%. With a nitrogen content of more than 0.008%, steel, regardless of category, must withstand the test for mechanical aging in accordance with GOST 19282.
According to TU 14-1-5034-91 the chemical composition is given for steel grade 09G2S. At the request of the consumer, the mass fraction should not exceed: sulfur - 0.025% and phosphorus - 0.025%. Permissible deviations in chemical composition - in accordance with GOST 19281.

Mechanical properties

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d₄	y, %	KCU, kJ/m²	HB, MPa
Seamless cold-worked tubes, heat-treated in the delivery condition according to GOST 30563-98
	-	≥265	≥470	≥21	-	-	-	-
Longitudinal electric-welded pipes TU 1303-002-08620133-01 in the delivery condition (in cross-section shows the thickness of the wall)
10-20	-	≥325	470-620	≥21	-	-	≥343	-
20-25	-	≥305	460-610	≥21	-	-	≥343	-
6-10	-	≥345	490-640	≥21	-	-	≥393	-
Bars and shapes of high-strength steel in the delivery state according to the GOST 19281-89 (specified strength class)
20-100	-	≥265	≥430	≥21	-	-	-	-
20-32	-	≥295	≥430	≥21	-	-	-	-
≤20	-	≥325	≥450	≥21	-	-	-	-
≤10	-	≥345	≥480	≥21	-	-	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥255	≥420	≥21	-	-	≥590	-
The plates and universal broadband in the state of delivery GOST 19282-73
≤10	-	≥345	≥490	≥21	-	-	-	-
Rolled plates in the state of delivery on the other 14-1-5034-91. Samples across the direction of rolling
10-20	-	≥325	≥470	≥21	-	≥50	≥290	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥185	≥345	-	-	-	-	-
Sheets with a thickness of 34 mm in the delivery condition of NV 112-127 (samples transverse)
-	20	≥295	≥405	≥30	-	≥66	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥265	≥430	≥21	-	-	≥590	-
The plates and universal broadband in the state of delivery GOST 19282-73
10-20	-	≥325	≥470	≥21	-	-	-	-
Rolled plates in the state of delivery on the other 14-1-5034-91. Samples across the direction of rolling
10-20	-	≥176	≥440	≥16	-	≥42	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥165	-	-	-	-	-	-
Sheets with a thickness of 34 mm in the delivery condition of NV 112-127 (samples transverse)
-	100	≥270	≥415	≥29	-	≥68	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
100-300	-	≥245	≥450	≥19	-	≥42	≥390	120-179
The plates and universal broadband in the state of delivery GOST 19282-73
20-32	-	≥305	≥460	≥21	-	-	-	-
Rolled plates in the state of delivery on the other 14-1-5034-91. Samples across the direction of rolling
21-32	-	≥305	≥460	≥21	-	≥50	≥240	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥145	-	-	-	-	-	-
Sheets with a thickness of 34 mm in the delivery condition of NV 112-127 (samples transverse)
-	200	≥265	≥430	-	-	-	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
300-500	-	≥245	≥430	≥17	-	≥35	≥390	120-179
The plates and universal broadband in the state of delivery GOST 19282-73
32-60	-	≥285	≥450	≥21	-	-	-	-
Rolled plates in the state of delivery on the other 14-1-5034-91. Samples across the direction of rolling
21-32	-	≥176	≥430	≥16	-	≥42	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥195	≥355	-	-	-	-	-
Sheets with a thickness of 34 mm in the delivery condition of NV 112-127 (samples transverse)
-	300	≥220	≥435	-	-	-	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
100	-	≥245	≥470	≥22	-	≥48	≥490	143-179
The plates and universal broadband in the state of delivery GOST 19282-73
60-80	-	≥275	≥440	≥21	-	-	-	-
Rolled plates in the state of delivery on the other 14-1-5034-91. Samples across the direction of rolling
33-50	-	≥285	≥450	≥21	-	≥50	≥230	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥175	-	-	-	-	-	-
Sheets with a thickness of 34 mm in the delivery condition of NV 112-127 (samples transverse)
-	400	≥205	≥410	≥27	-	≥63	-	-
Sheet 2-18, 19-22 categories, treated in the delivery condition (GOST 5520-79) and blank pieces of pipe armature from rolled and stamped: Quenching in water from 930-940 °C (exposure for 2.5-4.0 hours depending on the thickness and weight of the workpiece) with the subsequent vacation
≤10	630-640	≥345	≥490	≥21	-	-	≥588	174-217
The plates and universal broadband in the state of delivery GOST 19282-73
80-160	-	≥265	≥430	≥21	-	-	-	-
Rolled plates in the state of delivery on the other 14-1-5034-91. Samples across the direction of rolling
33-50	-	≥176	≥420	≥16	-	≥42	-	-
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
20-160	-	≥155	-	-	-	-	-	-
Sheets with a thickness of 34 mm in the delivery condition of NV 112-127 (samples transverse)
-	500	≥185	≥315	-	-	≥63	-	-
Sheet 2-18, 19-22 categories, treated in the delivery condition (GOST 5520-79) and blank pieces of pipe armature from rolled and stamped: Quenching in water from 930-940 °C (exposure for 2.5-4.0 hours depending on the thickness and weight of the workpiece) with the subsequent vacation
10-20	630-640	≥325	≥470	≥21	-	-	≥588	174-217
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
300	-	≥195	≥355	-	-	-	-	-
Sheet 2-18, 19-22 categories, treated in the delivery condition (GOST 5520-79) and blank pieces of pipe armature from rolled and stamped: Quenching in water from 930-940 °C (exposure for 2.5-4.0 hours depending on the thickness and weight of the workpiece) with the subsequent vacation
20-32	630-640	≥305	≥460	≥21	-	-	≥588	167-207
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
300	-	≥175	-	-	-	-	-	-
Sheet 2-18, 19-22 categories, treated in the delivery condition (GOST 5520-79) and blank pieces of pipe armature from rolled and stamped: Quenching in water from 930-940 °C (exposure for 2.5-4.0 hours depending on the thickness and weight of the workpiece) with the subsequent vacation
32-60	630-640	≥285	≥450	≥21	-	-	≥588	167-207
Of the workpiece after the primary heat treatment in the state of delivery on the other 302.02.122-91 (leaves and leaf stamped blanks - samples of the cross, forgings longitudinal samples)
300	-	≥155	-	-	-	-	-	-
Sheet 2-18, 19-22 categories, treated in the delivery condition (GOST 5520-79) and blank pieces of pipe armature from rolled and stamped: Quenching in water from 930-940 °C (exposure for 2.5-4.0 hours depending on the thickness and weight of the workpiece) with the subsequent vacation
60-80	630-640	≥275	≥440	≥21	-	-	≥588	143-197
Rolled steel. Normalizing at 930-950 °C
-	-	≥300	≥460	≥31	-	≥63	-	-
Sheet 2-18, 19-22 categories, treated in the delivery condition (GOST 5520-79) and blank pieces of pipe armature from rolled and stamped: Quenching in water from 930-940 °C (exposure for 2.5-4.0 hours depending on the thickness and weight of the workpiece) with the subsequent vacation
80-160	630-640	≥265	≥430	≥21	-	-	≥588	143-197
Rolled steel. Normalizing at 930-950 °C
-	-	≥220	≥420	≥25	-	≥56	-	-
Sheet as supplied by TU 14-1-5241-93. Quenching + Tempering (samples transverse)
10-20	-	≥325	≥470	≥21	-	-	-	-
Rolled steel. Normalizing at 930-950 °C
-	-	≥180	≥360	≥34	-	≥67	-	-
Sheet as supplied by TU 14-1-5241-93. Quenching + Tempering (samples transverse)
20-32	-	≥295	≥430	≥21	-	-	-	-
32-50	-	≥265	≥430	≥21	-	-	-	-
8-10	-	≥345	≥490	≥21	-	-	-	-
Steel hot-rolled sheet in the delivery condition. Without heat treatment
2-3.9	-	-	≥490	-	≥17	-	-	-
The plates and universal broadband in the state of delivery GOST 19282-73. Hardening + Vacation
10-32	-	≥365	≥490	≥19	-	-	-	-
32-60	-	≥315	≥450	≥21	-	-	-	-
Long products hot-rolled steel is vacuum casted from steel with a diameter of mm. 80-173 Quenching in oil from 910-930 °C + Vacation at 640-660 °C, cooling in water or oil
-	-	≥300	≥460	≥24	-	-	≥600	120-179
Pre-painted steel sheet of high-strength steel in the delivery state GOST 17066-94
0.5-3.9	-	≥345	≥490	-	≥19	-	-	-
0.5-3.9	-	≥345	≥460	-	≥19	-	-	-
Seamless hot deformed tubes for oil and gas in the TU 14-3R-44-2001 heat-treated in the delivery condition (group B - KCU-40 °C, group b - KCU-60 °C)
	-	≥265	≥470	≥21	-	-	-	-
	-	≥265	≥470	≥21	-	-	≥294	-
	-	≥265	≥470	≥21	-	-	≥294	-
Seamless hot deformed tubes on the other 14-159-1128-2008 in the delivery state (DH=57-219 mm, wall thickness 4-25 mm)
	-	≥265	470-588	≥21	-	-	-	-
Pipe the seamless hot-wrought cold-resistant according to GOST 30564-98, TU 14-3P-1128-2007, TU 14-3-1128-2000 on delivery
	-	≥265	≥470	≥21	-	-	-	-
Longitudinal electric-welded pipes of oil and gas as delivered at TU 14-3-1573-96 (samples transverse; column cross section - outer diameter. wall thickness; in the graph the value is KCU KCU-40 °C)
530 (7-12)	-	≥340	≥490	≥20	-	-	≥294	-
Longitudinal electric-welded pipes of oil and gas as delivered at TU 14-3-1573-96 (samples transverse; column cross section - outer diameter; in the graph the value is KCU KCU-60 °C)
630, 720, 820, 1020	-	≥340	≥490	≥20	-	-	≥294	-

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
d₄	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number

Physical characteristics

Temperature	a, 10^-6 1/°C
100	114
200	122
300	126
400	132
500	132
700	138

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
G	Modulus of elasticity shear torsion
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity
a	The coefficient of linear expansion

Technological properties

Name	The value
Weldability	Welded without any restrictions. Welding methods: SMAW, ADS submerged arc and gas protection electroslag welding. For manual arc welding using electrodes УОНИ13/55; for automatic submerged arc - welding wire SV-08ГА or SV-10G2 with flux an-348A; for welding in protective gases Ar and CO2 welding wire SV-08G2S.
Склонность к отпускной хрупкости	Tend not.
The temperature of forging	Start - 1250 °C, the end - 850 °C.
Flock-sensitive sensitivity	not sensitive.
Machinability	In the normalized released condition when blower SB=520 MPa Kn TV.SPL.=1,6 Kn b.St.=1,0.