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England B.S. 224-490 Specification for steels for fired and unfired pressure vessels: sections and bars and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 224-490 / 224-490
Category Grade Standard Region/Area Standard Content
Metals 224-490 BS 1502 England Specification for steels for fired and unfired pressure vessels: sections and bars

Chemical composition(mass fraction)(wt.%) of the 224-490

Element Min Max Similar
Si 0.1000 0.4000 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.9000 1.7000 -
Cu - 0.3000 -
Cr - 0.2500 -
C - 0.2500 -
Al 0.0180 - -
Si 0.1000 0.4000 -
S - 0.0400 -
P - 0.0400 -
Ni - 0.3000 -
Mo - 0.1000 -
Mn 0.9000 1.5000 -
Cu - 0.3000 -
Cr+Ni+Cu+M - 0.0700 -
Cr - 0.2500 -
C - 0.2200 -
Al met 0.0150 - -
Al 0.0180 - -

Mechanical Properties of steel grade 224-490

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)
329 (≥) 538 (≥) 32 14 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 224-490

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
22 - -     0.21 -  
148 229 - 24.3 221   -  
716 - 31 12.2   442 431

Heat Treatment of steel grade 224-490

Heat treated : 1127°C - 1249°C

Technological Curves of steel grade 224-490

Cross Reference Table (Equivalent Grade) of 224-490

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