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30 ChN 3 A

Bulgaria BDS 30ChN3A Alloyed constructional steels. Designations and technical requirements and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30ChN3A / 30 ChN 3 A
Category Grade Standard Region/Area Standard Content
Metals 30 ChN 3 A BDS 6354 Bulgaria Alloyed constructional steels. Designations and technical requirements

Chemical composition(mass fraction)(wt.%) of the 30 ChN 3 A

Element Min Max Similar

Mechanical Properties of steel grade 30 ChN 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)
498 (≥) 346 (≥) 41 21 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade 30 ChN 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
13 - -     0.13 -  
783 582 - 34.3 314   -  
841 - 14 24.2   323 234

Heat Treatment of steel grade 30 ChN 3 A

Heat treated : 1512°C - 1536°C

Technological Curves of steel grade 30 ChN 3 A

Cross Reference Table (Equivalent Grade) of 30 ChN 3 A

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