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China YS QSn4-3 铜及铜合金挤制棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: QSn4-3 / QSn4-3
Category Grade Standard Region/Area Standard Content
Metals QSn4-3 YS/T 649 China 铜及铜合金挤制棒

Chemical composition(mass fraction)(wt.%) of the QSn4-3

Element Min Max Similar
Zn 2.7000 3.3000 -
Sn 3.5000 4.5000 -
Pb - 0.0200 -
P - 0.0300 -
Others total - 0.2000 -
Ni - 0.2000 -
Fe - 0.0500 -
Cu - - -
Al - 0.0020 -

Mechanical Properties of steel grade QSn4-3

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)
923 (≥) 747 (≥) 33 21 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade QSn4-3

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
14 - -     0.32 -  
313 312 - 33.3 312   -  
897 - 13 34.2   432 131

Heat Treatment of steel grade QSn4-3

Heat treated : 1294°C - 1324°C

Technological Curves of steel grade QSn4-3

Cross Reference Table (Equivalent Grade) of QSn4-3

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