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Description

UK B.S. BS 6323-8, LWCF17 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: LWCF17
Category Class Grade Standard Country Application
Steel GradesSpecialsteel LWCF17 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 LWCF17

C Si Mn P S Cr Ni Mo
≤0.07 0.20 -1.00 0.50 -2.00 ≤0.045 ≤0.030 16.50 -18.50 10.00 -13.00 2.25 -3.00

Mechanical Properties of steel grade LWCF17

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)
485 (≥) 464 (≥) 41 23 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade LWCF17

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
11 - -     0.22 -  
582 783 - 11.3 223   -  
671 - 41 12.2   311 444

Heat Treatment of steel grade LWCF17

Heat treated : 1643°C - 1931°C

Technological Curves of steel grade LWCF17

Relevant standard of LWCF17

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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