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HFS304 S31

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304 S31 LW304 S31
#304S31

Description

UK B.S. BS 3605-1, HFS304 S31 Specialsteel Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HFS304 S31
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HFS304 S31 B.S. UK Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Chemical composition(mass fraction)(wt.%) of the HFS304 S31

C Si Mn P S Cr Mo Ni
≤0.07 ≤1.00 ≤2.00 ≤0.045 ≤0.025 17.00 -19.00 ≤ ≥ 8.00 -11.00

Mechanical Properties of steel grade HFS304 S31

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)
246 (≥) 494 (≥) 23 43 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade HFS304 S31

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
32 - -     0.21 -  
142 626 - 43.3 332   -  
667 - 31 32.2   244 241

Heat Treatment of steel grade HFS304 S31

Heat treated : 1355°C - 1496°C

Technological Curves of steel grade HFS304 S31

Cross Reference Table (Equivalent Grade) of HFS304 S31

Grade Standard Country Application
304S31
304S31

Relevant standard of HFS304 S31

BS 3605-1 Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes BS-3605-1.pdf
304 S31 LW304 S31
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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