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Australia AS 674 Copper and copper alloys - Forging stock and forgings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 674 / 674
Category Grade Standard Region/Area Standard Content
Metals 674 AS/NZS 1568 Australia Copper and copper alloys - Forging stock and forgings

Chemical composition(mass fraction)(wt.%) of the 674

Element Min Max Similar
Zn - - -
Sn - 0.3000 -
Si 0.5000 1.5000 -
Pb - 0.5000 -
Ni - 0.2500 -
Mn 2.0000 3.5000 -
Fe - 0.3500 -
Cu 57.0000 60.0000 -
Al 0.5000 2.0000 -

Mechanical Properties of steel grade 674

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)
934 (≥) 112 (≥) 32 23 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 674

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
12 - -     0.43 -  
289 948 - 43.3 121   -  
785 - 43 31.2   442 141

Heat Treatment of steel grade 674

Heat treated : 1144°C - 1155°C

Technological Curves of steel grade 674

Cross Reference Table (Equivalent Grade) of 674

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