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50 H 21 G 9 N 4

Poland PN 50H21G9N4 Heat resisting steel -- Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 50H21G9N4 / 50 H 21 G 9 N 4
Category Grade Standard Region/Area Standard Content
Metals 50 H 21 G 9 N 4 PN H86022 Poland Heat resisting steel -- Grades

Chemical composition(mass fraction)(wt.%) of the 50 H 21 G 9 N 4

Element Min Max Similar

Mechanical Properties of steel grade 50 H 21 G 9 N 4

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)
913 (≥) 872 (≥) 22 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 50 H 21 G 9 N 4

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
42 - -     0.11 -  
734 293 - 11.3 141   -  
222 - 11 32.2   441 221

Heat Treatment of steel grade 50 H 21 G 9 N 4

Heat treated : 1427°C - 1896°C

Technological Curves of steel grade 50 H 21 G 9 N 4

Cross Reference Table (Equivalent Grade) of 50 H 21 G 9 N 4

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