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Th-Pt90Ir

China GJB Th-Pt90Ir 贵金属及其合金电位器绕组裸丝材规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Th-Pt90Ir / Th-Pt90Ir
Category Grade Standard Region/Area Standard Content
Metals Th-Pt90Ir 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-Pt90Ir

Element Min Max Similar
Pt 89.5000 90.5000 -
Ir 9.5000 10.5000 -
Au - 0.0400 -
Fe - 0.0050 -
Total Others - 0.2000 -

Mechanical Properties of steel grade Th-Pt90Ir

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)
755 (≥) 577 (≥) 11 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade Th-Pt90Ir

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 - -     0.13 -  
251 768 - 12.3 144   -  
354 - 41 12.2   122 331

Heat Treatment of steel grade Th-Pt90Ir

Heat treated : 1531°C - 1332°C

Technological Curves of steel grade Th-Pt90Ir

Cross Reference Table (Equivalent Grade) of Th-Pt90Ir

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