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ZQSn4-4-2.5

China YS ZQSn4-4-2.5 铜及铜合金铸棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ZQSn4-4-2.5 / ZQSn4-4-2.5
Category Grade Standard Region/Area Standard Content
Metals ZQSn4-4-2.5 YS/T 759 China 铜及铜合金铸棒

Chemical composition(mass fraction)(wt.%) of the ZQSn4-4-2.5

Element Min Max Similar
Others total - 1.0000 -
Sb - 0.5000 -
Al - 0.0500 -
Fe - 0.4000 -
Pb 1.5000 3.5000 -
Zn 3.0000 5.0000 -
Sn 3.0000 5.0000 -
Cu - - -

Mechanical Properties of steel grade ZQSn4-4-2.5

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)
593 (≥) 344 (≥) 12 41 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade ZQSn4-4-2.5

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
24 - -     0.11 -  
227 955 - 13.3 323   -  
258 - 23 24.2   341 211

Heat Treatment of steel grade ZQSn4-4-2.5

Heat treated : 1661°C - 1291°C

Technological Curves of steel grade ZQSn4-4-2.5

Cross Reference Table (Equivalent Grade) of ZQSn4-4-2.5

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