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Global 企业标准 DDS United States Steel Corporation and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DDS / DDS
Category Grade Standard Region/Area Standard Content
Metals DDS -- Global United States Steel Corporation

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

Element Min Max Similar
Mn - 0.5000 -
P - 0.0200 -
S - 0.0250 -
Ni - 0.2000 -
Cr - 0.1500 -
Mo - 0.0600 -
Cu - 0.2000 -
V - 0.0080 -
Ti - 0.0250 -
Al 0.0100 - -
Nb - 0.0080 -
C - 0.0600 -
Mn - 0.5000 -
P - 0.0200 -
S - 0.0250 -

Mechanical Properties of steel grade DDS

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)
171 (≥) 398 (≥) 44 13 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade DDS

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
33 - -     0.14 -  
823 267 - 13.3 142   -  
528 - 23 22.2   312 333

Heat Treatment of steel grade DDS

Heat treated : 1449°C - 1125°C

Technological Curves of steel grade DDS

Cross Reference Table (Equivalent Grade) of DDS

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