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Hungary MSZ 45B Structural steels for welding purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 45B / 45 B
Category Grade Standard Region/Area Standard Content
Metals 45 B MSZ 6280 Hungary Structural steels for welding purposes

Chemical composition(mass fraction)(wt.%) of the 45 B

Element Min Max Similar

Mechanical Properties of steel grade 45 B

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)
843 (≥) 459 (≥) 42 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade 45 B

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
44 - -     0.44 -  
338 863 - 12.3 213   -  
959 - 21 43.2   321 334

Heat Treatment of steel grade 45 B

Heat treated : 1424°C - 1383°C

Technological Curves of steel grade 45 B

Cross Reference Table (Equivalent Grade) of 45 B

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