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Atlas 440 B

Global 企业标准 Atlas440B and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Atlas440B / Atlas 440 B
Category Grade Standard Region/Area Standard Content
Metals Atlas 440 B -- Global

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

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0400 -
Mo - 0.7500 -
Mn - 1.0000 -
Cr 16.0000 18.0000 -
C 0.7500 0.9500 -

Mechanical Properties of steel grade Atlas 440 B

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)
263 (≥) 873 (≥) 43 32 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade Atlas 440 B

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
14 - -     0.34 -  
616 614 - 13.3 324   -  
885 - 41 41.2   431 331

Heat Treatment of steel grade Atlas 440 B

Heat treated : 1261°C - 1878°C

Technological Curves of steel grade Atlas 440 B

Cross Reference Table (Equivalent Grade) of Atlas 440 B

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