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45 HN 2 A

Poland PN 45HN2A Structural alloy steel -- Steel for heat treatment (quenching + tempering) and surface hardening-Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 45HN2A / 45 HN 2 A
Category Grade Standard Region/Area Standard Content
Metals 45 HN 2 A PN H84030-04 Poland Structural alloy steel -- Steel for heat treatment (quenching + tempering) and surface hardening-Grades

Chemical composition(mass fraction)(wt.%) of the 45 HN 2 A

Element Min Max Similar

Mechanical Properties of steel grade 45 HN 2 A

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)
538 (≥) 711 (≥) 24 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 45 HN 2 A

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
24 - -     0.13 -  
817 917 - 44.3 243   -  
424 - 33 43.2   314 241

Heat Treatment of steel grade 45 HN 2 A

Heat treated : 1161°C - 1531°C

Technological Curves of steel grade 45 HN 2 A

Cross Reference Table (Equivalent Grade) of 45 HN 2 A

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