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China YB 30CrNi3A 合金结构钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30CrNi3A / 30CrNi3A
Category Grade Standard Region/Area Standard Content
Metals 30CrNi3A YB/T 5301 China 合金结构钢丝

Chemical composition(mass fraction)(wt.%) of the 30CrNi3A

Element Min Max Similar
C 0.2700 0.3300 -
Mn 0.3000 0.6000 -
P - 0.0400 -
S - 0.0400 -
Si 0.1700 0.3700 -
Ni 2.7500 3.2500 -
Cr 0.6000 0.9000 -
C 0.2700 0.3300 -
Mn 0.3000 0.6000 -
P - 0.0250 -
S - 0.0250 -
Si 0.1700 0.3700 -
Ni 2.7500 3.1500 -
Cr 0.6000 0.9000 -
Mo - 0.1000 -
Cu - 0.2500 -

Mechanical Properties of steel grade 30CrNi3A

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)
776 (≥) 441 (≥) 21 43 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 30CrNi3A

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
44 - -     0.22 -  
722 652 - 43.3 411   -  
837 - 11 41.2   221 322

Heat Treatment of steel grade 30CrNi3A

Heat treated : 1686°C - 1277°C

Technological Curves of steel grade 30CrNi3A

Cross Reference Table (Equivalent Grade) of 30CrNi3A

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