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A837 Grade 4815

America ASTM A837Grade4815 渗碳用合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A837Grade4815 / A837 Grade 4815
Category Grade Standard Region/Area Standard Content
Metals A837 Grade 4815 ASTM A837/A837M America 渗碳用合金钢锻件

Chemical composition(mass fraction)(wt.%) of the A837 Grade 4815

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0400 -
P - 0.0350 -
Ni 3.2500 3.7500 -
Mo 0.2000 0.3000 -
Mn 0.4000 0.6000 -
Cu - 0.3500 -
Cr - 0.2500 -
C 0.1300 0.1800 -

Mechanical Properties of steel grade A837 Grade 4815

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)
771 (≥) 915 (≥) 12 33 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade A837 Grade 4815

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
31 - -     0.43 -  
383 364 - 41.3 231   -  
293 - 34 42.2   224 441

Heat Treatment of steel grade A837 Grade 4815

Heat treated : 1135°C - 1388°C

Technological Curves of steel grade A837 Grade 4815

Cross Reference Table (Equivalent Grade) of A837 Grade 4815

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