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20 HN 3 A

Poland PN 20HN3A Alloyed structural steels for super loading equipment -- Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20HN3A / 20 HN 3 A
Category Grade Standard Region/Area Standard Content
Metals 20 HN 3 A PN H84035 Poland Alloyed structural steels for super loading equipment -- Grades

Chemical composition(mass fraction)(wt.%) of the 20 HN 3 A

Element Min Max Similar

Mechanical Properties of steel grade 20 HN 3 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)
585 (≥) 952 (≥) 14 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade 20 HN 3 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
42 - -     0.41 -  
791 199 - 22.3 241   -  
678 - 12 32.2   441 144

Heat Treatment of steel grade 20 HN 3 A

Heat treated : 1712°C - 1794°C

Technological Curves of steel grade 20 HN 3 A

Cross Reference Table (Equivalent Grade) of 20 HN 3 A

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