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20NiCrMoA

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China GB 20NiCrMoA 矿用高强度圆环链用钢技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20NiCrMoA / 20NiCrMoA
Category Grade Standard Region/Area Standard Content
Metals 20NiCrMoA GB/T 10560 China 矿用高强度圆环链用钢技术条件

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

Element Min Max Similar
Si - 0.2500 -
S - 0.0200 -
P - 0.0200 -
Ni 0.4000 0.7000 -
Mo 0.1500 0.2500 -
Mn 0.6000 0.9000 -
Cr 0.3500 0.6500 -
C 0.1700 0.2300 -
Al 0.0200 0.0500 -

Mechanical Properties of steel grade 20NiCrMoA

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)
141 (≥) 575 (≥) 33 24 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade 20NiCrMoA

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
23 - -     0.21 -  
687 225 - 13.3 143   -  
886 - 31 42.2   221 122

Heat Treatment of steel grade 20NiCrMoA

Heat treated : 1257°C - 1713°C

Technological Curves of steel grade 20NiCrMoA

Cross Reference Table (Equivalent Grade) of 20NiCrMoA

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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Jiangyou Longhai Special Steel Co.,Ltd.

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