LWCF21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of LWCF21

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B.S. LWCF21

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This page is mainly introduced the LWCF21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of LWCF21,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes
  • Steel Garde:LWCF21
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 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
  • Application:Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes

Cross Reference Table(Equivalent Materials):

Material Standard Country
LW21 B.S. UK
304S15 B.S. UK
LW15 B.S. UK
LWCF15 B.S. UK

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.06
Si   1.00
Mn   2.00
P   0.045
S   0.030
Cr 17.50  19.00
Ni 8.00  11.00
Mo  

Mechanical Properties

Tensile strength 205~619 σb/MPa
Yield Strength 328 σ 0.2 ≥/MPa
Elongation 05 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 672~654 -
HRC 30 -

Physical Properties

Thermal expansion 18-74 e-6/K
Thermal conductivity 22-45 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9725-7263 째C
Density 1069-9390 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
LWCF21 Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download