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America SAE Class2 Hard-Drawn Mechanical Spring Wire and Springs and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Class2 / Class 2
Category Grade Standard Region/Area Standard Content
Metals Class 2 SAE J 113 America Hard-Drawn Mechanical Spring Wire and Springs

Chemical composition(mass fraction)(wt.%) of the Class 2

Element Min Max Similar

Mechanical Properties of steel grade Class 2

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)
839 (≥) 133 (≥) 12 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade Class 2

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
33 - -     0.33 -  
424 799 - 23.3 112   -  
935 - 21 21.2   312 434

Heat Treatment of steel grade Class 2

Heat treated : 1817°C - 1499°C

Technological Curves of steel grade Class 2

Cross Reference Table (Equivalent Grade) of Class 2

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