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Poland PN P45 Steel for railway -- Smith forgings -- Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P45 / P 45
Category Grade Standard Region/Area Standard Content
Metals P 45 PN H84027-02 Poland Steel for railway -- Smith forgings -- Grades

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

Element Min Max Similar

Mechanical Properties of steel grade P 45

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)
835 (≥) 955 (≥) 14 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade P 45

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
43 - -     0.14 -  
745 469 - 32.3 134   -  
848 - 31 11.2   311 334

Heat Treatment of steel grade P 45

Heat treated : 1755°C - 1568°C

Technological Curves of steel grade P 45

Cross Reference Table (Equivalent Grade) of P 45

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