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China 武钢Q/WG DB685 低碳贝氏体钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DB685 / DB685
Category Grade Standard Region/Area Standard Content
Metals DB685 -- China 低碳贝氏体钢

Chemical composition(mass fraction)(wt.%) of the DB685

Element Min Max Similar
C - 0.0800 -
Si - 0.3500 -
Mn - 1.8000 -
P - 0.0200 -
S - 0.0100 -
Cu - 0.5000 -

Mechanical Properties of steel grade DB685

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)
944 (≥) 318 (≥) 24 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade DB685

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
32 - -     0.14 -  
587 516 - 32.3 343   -  
731 - 42 22.2   214 142

Heat Treatment of steel grade DB685

Heat treated : 1886°C - 1966°C

Technological Curves of steel grade DB685

Cross Reference Table (Equivalent Grade) of DB685

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