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China GB 40A Casting tin-lead solder and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40A / 40A
Category Grade Standard Region/Area Standard Content
Metals 40A GB/T 8012 China Casting tin-lead solder

Chemical composition(mass fraction)(wt.%) of the 40A

Element Min Max Similar

Mechanical Properties of steel grade 40A

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)
991 (≥) 843 (≥) 14 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade 40A

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
14 - -     0.11 -  
743 654 - 31.3 242   -  
331 - 24 24.2   413 134

Heat Treatment of steel grade 40A

Heat treated : 1446°C - 1895°C

Technological Curves of steel grade 40A

Cross Reference Table (Equivalent Grade) of 40A

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