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Bulgaria BDS 12ChN2 Alloyed constructional steels. Designations and technical requirements and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12ChN2 / 12 ChN 2
Category Grade Standard Region/Area Standard Content
Metals 12 ChN 2 BDS 6354 Bulgaria Alloyed constructional steels. Designations and technical requirements

Chemical composition(mass fraction)(wt.%) of the 12 ChN 2

Element Min Max Similar
W - 0.2000 -
V - 0.0500 -
Ti - 0.0300 -
Si 0.1700 0.3700 -
S - 0.0350 -
P - 0.0350 -
Ni 1.5000 1.9000 -
Mo - 0.1500 -
Mn 0.3000 0.6000 -
Cu - 0.3000 -
Cr 0.6000 0.9000 -
C 0.0900 0.1600 -

Mechanical Properties of steel grade 12 ChN 2

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)
723 (≥) 489 (≥) 24 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade 12 ChN 2

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
34 - -     0.21 -  
626 593 - 21.3 114   -  
216 - 14 11.2   123 421

Heat Treatment of steel grade 12 ChN 2

Heat treated : 1652°C - 1487°C

Technological Curves of steel grade 12 ChN 2

Cross Reference Table (Equivalent Grade) of 12 ChN 2

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