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12H21N5G2SM2L

Favorite Datasheet

Russia GOST 12H21N5G2SM2L Steel castings. General specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12H21N5G2SM2L / 12H21N5G2SM2L
Category Grade Standard Region/Area Standard Content
Metals 12H21N5G2SM2L GOST 977 Russia Steel castings. General specifications

Chemical composition(mass fraction)(wt.%) of the 12H21N5G2SM2L

Element Min Max Similar
Si - 1.5000 -
S - 0.0350 -
P - 0.0450 -
Ni 4.5000 6.0000 -
Mo 1.8000 2.2000 -
Mn - 2.0000 -
Cr 20.0000 22.0000 -
C - 0.1200 -

Mechanical Properties of steel grade 12H21N5G2SM2L

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
273 (≥) 957 (≥) 24 34 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade 12H21N5G2SM2L

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
22 - -     0.42 -  
842 172 - 34.3 424   -  
952 - 24 42.2   444 444

Heat Treatment of steel grade 12H21N5G2SM2L

Heat treated : 1129°C - 1987°C

Technological Curves of steel grade 12H21N5G2SM2L

Cross Reference Table (Equivalent Grade) of 12H21N5G2SM2L

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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