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23 G 2 NMA

Poland PN 23G2NMA Steel -- Hot rolled wire rod and bars for mining link chains and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 23G2NMA / 23 G 2 NMA
Category Grade Standard Region/Area Standard Content
Metals 23 G 2 NMA PN H93028 Poland Steel -- Hot rolled wire rod and bars for mining link chains

Chemical composition(mass fraction)(wt.%) of the 23 G 2 NMA

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0250 -
P+S - 0.0400 -
P - 0.0250 -
Ni 0.4000 0.7000 -
Mo 0.2000 0.3000 -
Mn 1.0000 1.2500 -
Cu - 0.2000 -
Cr 0.4000 0.6000 -
C 0.2000 0.2600 -
Al 0.0200 0.0700 -
Sn - 0.0300 -
Si 0.1500 0.2500 -
S - 0.0200 -
P+S - 0.0350 -
P - 0.0200 -
Ni 0.4000 0.7000 -
N - 0.0120 -
Mo 0.2000 0.3000 -
Mn 1.1000 1.4000 -
Cu - 0.2000 -
Cr 0.4000 0.6000 -
C 0.2000 0.2600 -
B - 0.0008 -
As - 0.0300 -
Al 0.0200 0.0500 -

Mechanical Properties of steel grade 23 G 2 NMA

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)
345 (≥) 661 (≥) 44 44 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade 23 G 2 NMA

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
11 - -     0.32 -  
873 653 - 12.3 242   -  
978 - 33 32.2   343 213

Heat Treatment of steel grade 23 G 2 NMA

Heat treated : 1838°C - 1365°C

Technological Curves of steel grade 23 G 2 NMA

Cross Reference Table (Equivalent Grade) of 23 G 2 NMA

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