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China GB T17490 加工铜及铜合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: T17490 / T17490
Category Grade Standard Region/Area Standard Content
Metals T17490 GB/T 5231 China 加工铜及铜合金牌号和化学成分

Chemical composition(mass fraction)(wt.%) of the T17490

Element Min Max Similar
Si - 0.2000 -
Others total - 0.5000 -
Fe - 0.1000 -
Cu - - -
Co 1.4000 1.7000 -
Be 0.2500 0.5000 -
Al - 0.2000 -
Ag 0.9000 1.1000 -

Mechanical Properties of steel grade T17490

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)
259 (≥) 852 (≥) 43 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade T17490

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
23 - -     0.44 -  
461 761 - 32.3 144   -  
254 - 11 21.2   413 144

Heat Treatment of steel grade T17490

Heat treated : 1183°C - 1311°C

Technological Curves of steel grade T17490

Cross Reference Table (Equivalent Grade) of T17490

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