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America SAE TypeAB Mechanical and quality requirements for tapping screws and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TypeAB / Type AB
Category Grade Standard Region/Area Standard Content
Metals Type AB SAE J 933 America Mechanical and quality requirements for tapping screws

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

Element Min Max Similar

Mechanical Properties of steel grade Type AB

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)
322 (≥) 827 (≥) 31 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade Type AB

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
34 - -     0.32 -  
244 114 - 13.3 322   -  
173 - 33 21.2   142 314

Heat Treatment of steel grade Type AB

Heat treated : 1533°C - 1527°C

Technological Curves of steel grade Type AB

Cross Reference Table (Equivalent Grade) of Type AB

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