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China GJB Au69AgPt sheets and bands of precious metals and their al loys and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Au69AgPt / Au69AgPt
Category Grade Standard Region/Area Standard Content
Metals Au69AgPt GJB 953A China sheets and bands of precious metals and their al loys

Chemical composition(mass fraction)(wt.%) of the Au69AgPt

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 Au69AgPt

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)
366 (≥) 418 (≥) 33 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade Au69AgPt

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
43 - -     0.34 -  
636 425 - 22.3 231   -  
879 - 24 42.2   334 144

Heat Treatment of steel grade Au69AgPt

Heat treated : 1792°C - 1237°C

Technological Curves of steel grade Au69AgPt

Cross Reference Table (Equivalent Grade) of Au69AgPt

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