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China 宝钢Q/BQB 27MnSi 连铸圆坯 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 27MnSi / 27MnSi
Category Grade Standard Region/Area Standard Content
Metals 27MnSi Q/BQB 151 China 连铸圆坯

Chemical composition(mass fraction)(wt.%) of the 27MnSi

Element Min Max Similar
P - 0.0300 -
S - 0.0300 -
Mn 1.1000 1.4000 -
Si 1.1000 1.4000 -
C 0.2400 0.3200 -
P - 0.0300 -
S - 0.0300 -
Mn 1.1000 1.4000 -
Si 1.1000 1.4000 -
C 0.2400 0.3200 -

Mechanical Properties of steel grade 27MnSi

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)
676 (≥) 927 (≥) 13 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade 27MnSi

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
24 - -     0.31 -  
277 428 - 32.3 321   -  
233 - 21 41.2   132 413

Heat Treatment of steel grade 27MnSi

Heat treated : 1441°C - 1612°C

Technological Curves of steel grade 27MnSi

Cross Reference Table (Equivalent Grade) of 27MnSi

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