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Grade 13 Class B

India IS Grade13ClassB Alloy Steel Castings Suitable for Pressure Service and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Grade13ClassB / Grade 13 Class B
Category Grade Standard Region/Area Standard Content
Metals Grade 13 Class B IS 7899 India Alloy Steel Castings Suitable for Pressure Service

Chemical composition(mass fraction)(wt.%) of the Grade 13 Class B

Element Min Max Similar
Si - 1.0000 -
S - 0.0400 -
P - 0.0400 -
Ni 3.5000 4.5000 -
Mo 0.4000 1.0000 -
Mn - 1.0000 -
Cr 11.5000 14.0000 -
C - 0.0600 -

Mechanical Properties of steel grade Grade 13 Class B

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)
472 (≥) 511 (≥) 42 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade Grade 13 Class B

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
23 - -     0.23 -  
588 656 - 14.3 112   -  
598 - 14 33.2   424 233

Heat Treatment of steel grade Grade 13 Class B

Heat treated : 1438°C - 1368°C

Technological Curves of steel grade Grade 13 Class B

Cross Reference Table (Equivalent Grade) of Grade 13 Class B

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