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B770 C82000

America ASTM B770C82000 通用铜铍合金砂型铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B770C82000 / B770 C82000
Category Grade Standard Region/Area Standard Content
Metals B770 C82000 ASTM B770 America 通用铜铍合金砂型铸件

Chemical composition(mass fraction)(wt.%) of the B770 C82000

Element Min Max Similar
Zn - 0.1000 -
Total Others - - -
Sn - 0.1000 -
Si - 0.1500 -
Pb - 0.0200 -
Ni - 0.2000 -
Fe - 0.1000 -
Cu - - -
Cr - 0.0900 -
Co 2.4000 2.7000 -
Be 0.4500 0.8000 -
Al - 0.1000 -

Mechanical Properties of steel grade B770 C82000

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)
476 (≥) 775 (≥) 14 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade B770 C82000

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 - -     0.32 -  
212 871 - 42.3 214   -  
775 - 41 14.2   434 143

Heat Treatment of steel grade B770 C82000

Heat treated : 1177°C - 1766°C

Technological Curves of steel grade B770 C82000

Cross Reference Table (Equivalent Grade) of B770 C82000

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