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GMW3399M-ST-S HR780T/650Y MP

America GM GMW3399M-ST-SHR780T/650YMP Multi Phase and Ultra High Strength Sheet Steel Revision A and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals GMW3399M-ST-S HR780T/650Y MP GMW 3399 America Multi Phase and Ultra High Strength Sheet Steel Revision A

Chemical composition(mass fraction)(wt.%) of the GMW3399M-ST-S HR780T/650Y MP

Element Min Max Similar
Cu - 0.2000 -
S - 0.0150 -
P - 0.0500 -
Si - 2.0000 -
Al 0.0100 - -
Mn - 2.2000 -
C - 0.2500 -

Mechanical Properties of steel grade GMW3399M-ST-S HR780T/650Y MP

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)
859 (≥) 345 (≥) 12 32 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade GMW3399M-ST-S HR780T/650Y MP

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 - -     0.32 -  
728 695 - 24.3 243   -  
149 - 24 22.2   243 213

Heat Treatment of steel grade GMW3399M-ST-S HR780T/650Y MP

Heat treated : 1341°C - 1971°C

Technological Curves of steel grade GMW3399M-ST-S HR780T/650Y MP

Cross Reference Table (Equivalent Grade) of GMW3399M-ST-S HR780T/650Y MP

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