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Description

UK B.S. BS 6323-8, LW15 Specialsteel Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: LW15
Category Class Grade Standard Country Application
Steel GradesSpecialsteel LW15 B.S. UK Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes

Chemical composition(mass fraction)(wt.%) of the LW15

C Si Mn P S Cr Ni Mo
≤0.06 0.20 -1.00 0.50 -2.00 ≤0.045 ≤0.030 17.50 -19.00 8.00 -11.00 ≤ ≥

Mechanical Properties of steel grade LW15

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)
586 (≥) 534 (≥) 33 24 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade LW15

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
24 - -     0.42 -  
377 971 - 14.3 242   -  
638 - 21 32.2   222 313

Heat Treatment of steel grade LW15

Heat treated : 1679°C - 1343°C

Technological Curves of steel grade LW15

Cross Reference Table (Equivalent Grade) of LW15

Grade Standard Country Application
304S15
304S15

Relevant standard of LW15

BS 6323-8 Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes BS-6323-8.pdf

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