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

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

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

Element Min Max Similar

Mechanical Properties of steel grade Type A

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)
383 (≥) 663 (≥) 44 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade Type A

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
22 - -     0.12 -  
649 511 - 14.3 424   -  
496 - 23 21.2   341 132

Heat Treatment of steel grade Type A

Heat treated : 1272°C - 1771°C

Technological Curves of steel grade Type A

Cross Reference Table (Equivalent Grade) of Type A

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