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2120-20

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China GB 2120-20 Steel for hardening and tempering and for flame and induction hardening - SS-steel 21 20 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 2120-20 / 2120-20
Category Grade Standard Region/Area Standard Content
Metals 2120-20 SS 142120 China Steel for hardening and tempering and for flame and induction hardening - SS-steel 21 20

Chemical composition(mass fraction)(wt.%) of the 2120-20

Element Min Max Similar

Mechanical Properties of steel grade 2120-20

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)
723 (≥) 381 (≥) 42 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 2120-20

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
41 - -     0.34 -  
379 657 - 34.3 141   -  
715 - 11 41.2   122 322

Heat Treatment of steel grade 2120-20

Heat treated : 1438°C - 1265°C

Technological Curves of steel grade 2120-20

Cross Reference Table (Equivalent Grade) of 2120-20

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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