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America SAE TypeBSD Steel self-drilling tapping screws and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TypeBSD / Type BSD
Category Grade Standard Region/Area Standard Content
Metals Type BSD SAE J 78 America Steel self-drilling tapping screws

Chemical composition(mass fraction)(wt.%) of the Type BSD

Element Min Max Similar

Mechanical Properties of steel grade Type BSD

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)
535 (≥) 426 (≥) 21 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade Type BSD

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 - -     0.12 -  
425 842 - 31.3 442   -  
326 - 21 41.2   243 424

Heat Treatment of steel grade Type BSD

Heat treated : 1413°C - 1268°C

Technological Curves of steel grade Type BSD

Cross Reference Table (Equivalent Grade) of Type BSD

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