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China 首钢Q/SG DD14 冷成型用低碳钢热连轧钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DD14 / DD14
Category Grade Standard Region/Area Standard Content
Metals DD14 Q/SGZGS 314 China 冷成型用低碳钢热连轧钢板和钢带

Chemical composition(mass fraction)(wt.%) of the DD14

Element Min Max Similar
C - 0.0600 -
Si - 0.0500 -
Mn - 0.5000 -
P - 0.0200 -
S - 0.0200 -
Alt 0.0100 - -

Mechanical Properties of steel grade DD14

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)
418 (≥) 353 (≥) 13 34 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade DD14

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
44 - -     0.31 -  
719 288 - 24.3 234   -  
171 - 13 43.2   414 144

Heat Treatment of steel grade DD14

Heat treated : 1215°C - 1927°C

Technological Curves of steel grade DD14

Cross Reference Table (Equivalent Grade) of DD14

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