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SCr 440

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Japan JIS SCr440 机械结构用低合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SCr440 / SCr 440
Category Grade Standard Region/Area Standard Content
Metals SCr 440 JIS G4053 Japan 机械结构用低合金钢

Chemical composition(mass fraction)(wt.%) of the SCr 440

Element Min Max Similar
V - 0.2500 -
Si 0.1500 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 0.6000 0.8500 -
Cu - 0.3000 -
Cr 0.9000 1.2000 -
C 0.3800 0.4300 -
Si 0.1500 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 0.6000 0.9000 -
Cu - 0.3000 -
Cr 0.9000 1.2000 -
C 0.3800 0.4300 -

Mechanical Properties of steel grade SCr 440

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)
127 (≥) 988 (≥) 32 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade SCr 440

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
21 - -     0.44 -  
645 334 - 32.3 342   -  
259 - 21 31.2   142 422

Heat Treatment of steel grade SCr 440

Heat treated : 1658°C - 1638°C

Technological Curves of steel grade SCr 440

Cross Reference Table (Equivalent Grade) of SCr 440

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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