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B774 300-302

America ASTM B774300-302 低熔点金属 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B774300-302 / B774 300-302
Category Grade Standard Region/Area Standard Content
Metals B774 300-302 ASTM B774 America 低熔点金属

Chemical composition(mass fraction)(wt.%) of the B774 300-302

Element Min Max Similar
Zn - 0.0800 -
Sn - 0.0100 -
Sb - 0.1000 -
Pb 14.5000 15.5000 -
In 79.5000 80.5000 -
Cu - 0.0800 -
Cd - 0.0050 -
Bi - 0.0100 -
Ag 4.5000 5.5000 -

Mechanical Properties of steel grade B774 300-302

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)
891 (≥) 417 (≥) 42 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade B774 300-302

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
12 - -     0.34 -  
637 485 - 12.3 123   -  
933 - 14 42.2   141 312

Heat Treatment of steel grade B774 300-302

Heat treated : 1355°C - 1518°C

Technological Curves of steel grade B774 300-302

Cross Reference Table (Equivalent Grade) of B774 300-302

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