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

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

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

Element Min Max Similar

Mechanical Properties of steel grade Type B

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)
212 (≥) 539 (≥) 33 34 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade Type B

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 - -     0.23 -  
318 299 - 33.3 311   -  
813 - 12 23.2   411 224

Heat Treatment of steel grade Type B

Heat treated : 1847°C - 1997°C

Technological Curves of steel grade Type B

Cross Reference Table (Equivalent Grade) of Type B

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