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Description

China CNS G3067, 440B Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 440B
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 440B Martensite CNS China Stainless steel bars

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

C Si Mn P S Ni Cr Mo
0.75 -0.95 ≤1.00 ≤1.00 ≤0.040 ≤0.030 ≤0.60 16.00 -18.00 ≤0.75

Mechanical Properties of steel grade 440B

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)
389 (≥) 932 (≥) 11 21 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade 440B

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 - -     0.41 -  
332 767 - 12.3 343   -  
326 - 23 22.2   442 413

Heat Treatment of steel grade 440B

Heat treated : 1611°C - 1758°C

Technological Curves of steel grade 440B

Cross Reference Table (Equivalent Grade) of 440B

Relevant standard of 440B

G3067 Stainless steel bars G3067.pdf

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