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LWCF18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of LWCF18

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B.S. LWCF18

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This page is mainly introduced the LWCF18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of LWCF18,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:LWCF18
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
LW18	B.S.	UK

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si	0.20	1.00
Mn	0.50	2.00
P		0.045
S		0.030
Cr	17.00	19.00
Ni	9.00	12.00
Mo
Ti		0.70

Mechanical Properties

Tensile strength	624～552	σb/MPa
Yield Strength	686	σ 0.2 ≥/MPa
Elongation	71	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	230～596	-
HRC	30	-

Physical Properties

Thermal expansion	03-95	e-6/K
Thermal conductivity	71-79	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2022-0410	째C
Density	3623-9337	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)
LWCF18 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