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Th-Au77.3CuNiZnMn

China GJB Th-Au77.3CuNiZnMn 贵金属及其合金电位器绕组裸丝材规范 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals Th-Au77.3CuNiZnMn GJB 955A China 贵金属及其合金电位器绕组裸丝材规范

Chemical composition(mass fraction)(wt.%) of the Th-Au77.3CuNiZnMn

Element Min Max Similar
Au 76.3000 78.3000 -
Cu 17.5000 18.5000 -
Ni 1.7000 2.3000 -
Mn 1.7000 2.3000 -
Zn 0.5000 0.9000 -
Fe - 0.0050 -
Pb - 0.0050 -
Sb - 0.0050 -
Bi - 0.0050 -
Total Others - 0.2000 -

Mechanical Properties of steel grade Th-Au77.3CuNiZnMn

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)
156 (≥) 486 (≥) 42 33 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade Th-Au77.3CuNiZnMn

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
41 - -     0.44 -  
893 687 - 23.3 422   -  
478 - 13 24.2   443 232

Heat Treatment of steel grade Th-Au77.3CuNiZnMn

Heat treated : 1769°C - 1174°C

Technological Curves of steel grade Th-Au77.3CuNiZnMn

Cross Reference Table (Equivalent Grade) of Th-Au77.3CuNiZnMn

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