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China GB SD4 粘土质和高铝质耐火可塑料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SD4 / SD4
Category Grade Standard Region/Area Standard Content
Metals SD4 GB 4758.1 China 粘土质和高铝质耐火可塑料

Chemical composition(mass fraction)(wt.%) of the SD4

Element Min Max Similar

Mechanical Properties of steel grade SD4

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)
287 (≥) 239 (≥) 13 33 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade SD4

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
12 - -     0.41 -  
236 268 - 41.3 224   -  
988 - 33 23.2   322 123

Heat Treatment of steel grade SD4

Heat treated : 1757°C - 1414°C

Technological Curves of steel grade SD4

Cross Reference Table (Equivalent Grade) of SD4

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