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LW 304S31

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HFS 304S31 310S31
#304S31

Description

UK B.S. BS 3605-2, LW 304S31 Specialsteel Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: LW 304S31
Category Class Grade Standard Country Application
Steel GradesSpecialsteel LW 304S31 B.S. UK Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes

Chemical composition(mass fraction)(wt.%) of the LW 304S31

C Si Mn P S Cr Mo Ni
≤0.07 ≤1.00 ≤2.00 ≤0.045 ≤0.03 17.00 -19.00 ≤ ≥ 8.00 -11.00

Mechanical Properties of steel grade LW 304S31

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)
358 (≥) 259 (≥) 22 31 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade LW 304S31

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
34 - -     0.32 -  
579 893 - 42.3 231   -  
956 - 13 34.2   241 132

Heat Treatment of steel grade LW 304S31

Heat treated : 1246°C - 1126°C

Technological Curves of steel grade LW 304S31

Cross Reference Table (Equivalent Grade) of LW 304S31

Grade Standard Country Application
304S31
304S31

Relevant standard of LW 304S31

BS 3605-2 Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes BS-3605-2.pdf
HFS 304S31 310S31
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