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England B.S. 591 Steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties. Specification for seamless and electric resistance welded tubes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 591 / 591
Category Grade Standard Region/Area Standard Content
Metals 591 BS 3604-1 England Steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties. Specification for seamless and electric resistance welded tubes

Chemical composition(mass fraction)(wt.%) of the 591

Element Min Max Similar

Mechanical Properties of steel grade 591

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)
957 (≥) 275 (≥) 11 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade 591

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
43 - -     0.41 -  
234 114 - 13.3 224   -  
434 - 41 42.2   122 131

Heat Treatment of steel grade 591

Heat treated : 1389°C - 1127°C

Technological Curves of steel grade 591

Cross Reference Table (Equivalent Grade) of 591

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