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China GB QSn4-0.3 铜及铜合金带材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: QSn4-0.3 / QSn4-0.3
Category Grade Standard Region/Area Standard Content
Metals QSn4-0.3 GB/T 2059 China 铜及铜合金带材

Chemical composition(mass fraction)(wt.%) of the QSn4-0.3

Element Min Max Similar

Mechanical Properties of steel grade QSn4-0.3

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)
226 (≥) 957 (≥) 44 33 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade QSn4-0.3

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 - -     0.43 -  
775 354 - 31.3 231   -  
483 - 12 24.2   322 234

Heat Treatment of steel grade QSn4-0.3

Heat treated : 1977°C - 1947°C

Technological Curves of steel grade QSn4-0.3

Cross Reference Table (Equivalent Grade) of QSn4-0.3

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