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B275 443.0

America ASTM B275443.0 某些锻造和锻造有色金属及合金统一牌号编制标准惯例 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B275443.0 / B275 443.0
Category Grade Standard Region/Area Standard Content
Metals B275 443.0 ASTM B275 America 某些锻造和锻造有色金属及合金统一牌号编制标准惯例

Chemical composition(mass fraction)(wt.%) of the B275 443.0

Element Min Max Similar
Zn - 0.5000 -
Total Others - 0.3500 -
Ti - 0.2500 -
Si 4.5000 6.0000 -
Mn - 0.5000 -
Mg - 0.0500 -
Fe - 0.8000 -
Cu - 0.6000 -
Cr - 0.2500 -
Al - - -

Mechanical Properties of steel grade B275 443.0

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)
146 (≥) 371 (≥) 14 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade B275 443.0

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
22 - -     0.21 -  
466 121 - 43.3 311   -  
137 - 33 42.2   423 121

Heat Treatment of steel grade B275 443.0

Heat treated : 1485°C - 1225°C

Technological Curves of steel grade B275 443.0

Cross Reference Table (Equivalent Grade) of B275 443.0

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