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China GJB Au99.99 sheets and bands of precious metals and their al loys and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Au99.99 / Au99.99
Category Grade Standard Region/Area Standard Content
Metals Au99.99 GJB 953A China sheets and bands of precious metals and their al loys

Chemical composition(mass fraction)(wt.%) of the Au99.99

Element Min Max Similar
Ag 24.5000 25.5000 -
Au 68.0000 70.0000 -
Pt 5.7000 6.3000 -
Fe - 0.0500 -
Pb - 0.0050 -
Sb - 0.0050 -
Bi - 0.0050 -
Total Others - 0.2000 -

Mechanical Properties of steel grade Au99.99

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)
948 (≥) 987 (≥) 21 42 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade Au99.99

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
32 - -     0.42 -  
996 592 - 43.3 314   -  
459 - 42 14.2   413 134

Heat Treatment of steel grade Au99.99

Heat treated : 1996°C - 1631°C

Technological Curves of steel grade Au99.99

Cross Reference Table (Equivalent Grade) of Au99.99

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