21H2NMFA

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Russia GOST 21H2NMFA Alloyed structural high-grade rolled steel sheets for special purposes. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 21H2NMFA / 21H2NMFA

Category	Grade	Standard	Region/Area	Standard Content
Metals	21H2NMFA	GOST 11268	Russia	Alloyed structural high-grade rolled steel sheets for special purposes. Specifications

Chemical composition(mass fraction)(wt.%) of the 21H2NMFA

Element	Min	Max	Similar
W	-	0.2000	-
V	0.1800	0.2800	-
Ti	-	0.0300	-
Si	0.1700	0.3700	-
S	-	0.0250	-
P	-	0.0250	-
Ni	0.8000	1.2000	-
Mo	0.3500	0.4500	-
Mn	0.3000	0.7000	-
Cu	-	0.2500	-
Cr	1.9000	2.4000	-
C	0.1900	0.2300	-
W	-	0.2000	-
V	0.1800	0.2800	-
Ti	-	0.0300	-
Si	0.1700	0.3700	-
S	-	0.0250	-
P	-	0.0250	-
Ni	0.8000	1.2000	-
Mo	0.3500	0.4500	-
Mn	0.3000	0.7000	-
Cu	-	0.2500	-
Cr	1.9000	2.4000	-
C	0.1900	0.2300	-

Mechanical Properties of steel grade 21H2NMFA

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
697 (≥)	996 (≥)	33	41	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	431

Physical Properties of steel grade 21H2NMFA

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
12	-	-			0.24	-
332	196	-	21.3	422		-
955	-	41	24.2			312	223

Heat Treatment of steel grade 21H2NMFA

Heat treated : 1531°C - 1522°C

Technological Curves of steel grade 21H2NMFA

No Curve

Cross Reference Table (Equivalent Grade) of 21H2NMFA

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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