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China GB BZn18-18 加工铜及铜合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BZn18-18 / BZn18-18
Category Grade Standard Region/Area Standard Content
Metals BZn18-18 GB/T 5231 China 加工铜及铜合金牌号和化学成分

Chemical composition(mass fraction)(wt.%) of the BZn18-18

Element Min Max Similar

Mechanical Properties of steel grade BZn18-18

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)
237 (≥) 279 (≥) 43 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade BZn18-18

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
13 - -     0.31 -  
295 519 - 31.3 211   -  
259 - 11 12.2   432 242

Heat Treatment of steel grade BZn18-18

Heat treated : 1343°C - 1829°C

Technological Curves of steel grade BZn18-18

Cross Reference Table (Equivalent Grade) of BZn18-18

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