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Poland PN 23GHNMA Steel for determined purposes -- Steel for construction of link chains -- Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 23GHNMA / 23 GHNMA
Category Grade Standard Region/Area Standard Content
Metals 23 GHNMA PN H84023-08 Poland Steel for determined purposes -- Steel for construction of link chains -- Grades

Chemical composition(mass fraction)(wt.%) of the 23 GHNMA

Element Min Max Similar
C 0.2000 0.2600 -
Mn 0.3000 0.8000 -
P - 0.0350 -
S - 0.0350 -
Si 0.1000 0.5000 -
Ni 0.3000 0.8000 -
Cr 11.0000 12.5000 -
Mo 0.8000 1.2000 -
V 0.2500 0.3500 -
W - 0.6000 -
Nb - 0.0500 -
W - 0.6000 -
V 0.2500 0.3500 -
Si 0.1000 0.5000 -
S - 0.0350 -
P - 0.0350 -
Ni 0.3000 0.8000 -
Nb - 0.0500 -
Mo 0.8000 1.2000 -
Mn 0.3000 0.8000 -
Cr 11.0000 12.5000 -
C 0.2000 0.2600 -

Mechanical Properties of steel grade 23 GHNMA

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)
454 (≥) 278 (≥) 24 34 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 23 GHNMA

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
41 - -     0.41 -  
397 829 - 23.3 124   -  
488 - 14 32.2   112 334

Heat Treatment of steel grade 23 GHNMA

Heat treated : 1272°C - 1857°C

Technological Curves of steel grade 23 GHNMA

Cross Reference Table (Equivalent Grade) of 23 GHNMA

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