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B774 291-325

America ASTM B774291-325 低熔点金属 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B774291-325 / B774 291-325
Category Grade Standard Region/Area Standard Content
Metals B774 291-325 ASTM B774 America 低熔点金属

Chemical composition(mass fraction)(wt.%) of the B774 291-325

Element Min Max Similar
Zn - 0.0800 -
Sn 42.5000 43.5000 -
Sb - 0.1000 -
Pb 42.5000 43.5000 -
In - 0.0080 -
Cu - 0.0800 -
Cd - 0.0050 -
Bi 13.5000 14.5000 -
Ag - 0.0100 -

Mechanical Properties of steel grade B774 291-325

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)
742 (≥) 984 (≥) 12 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade B774 291-325

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
13 - -     0.11 -  
333 999 - 41.3 124   -  
493 - 41 12.2   341 413

Heat Treatment of steel grade B774 291-325

Heat treated : 1748°C - 1716°C

Technological Curves of steel grade B774 291-325

Cross Reference Table (Equivalent Grade) of B774 291-325

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