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B.S. LW22 Details

LW22 Application:Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes

Category Type Grade Designations
Grades Stainless Steels LW22 UK - B.S. , 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

Chemical composition(wt.%) of LW22 grade: BS 6323-8

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 16.50 18.50
Ni 11.50 14.50
Mo 2.50 3.00
Specification for seamless and welded steel tubes for automobile , mechanical and general engineering purposes. Specific requirements for longitudinally welded stainless steel tubes

Mechanical properties of grade LW22 BS 6323-8

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
251 (≥) 575 (≥) 23 41 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical properties of grade LW22 BS 6323-8

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
716 (≥) 729 (≥) 13 43 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
888 885 279

LW22 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
LW22 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
LWCF22 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
316S13 B.S. UK
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes
CFS 316S13 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
HFM 316S13 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
HFS 316S13 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
LW 316S13 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
LWCF 316S13 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
LWHT 316S13 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes

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