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LW20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of LW20

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B.S. LW20

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This page is mainly introduced the LW20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of LW20,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:LW20
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
LWCF20	B.S.	UK
304S11	B.S.	UK
304S11-E	B.S.	UK
304S11-LT	B.S.	UK
CFS 304S11	B.S.	UK
HFM 304S11	B.S.	UK
LW 304S11	B.S.	UK
LWCF 304S11	B.S.	UK
LWHT 304S11	B.S.	UK
304 S11	B.S.	UK
304 S11E	B.S.	UK
304 S11LT	B.S.	UK
CFS304 S11	B.S.	UK
HFM304 S11	B.S.	UK
HFS304 S11	B.S.	UK
LW304 S11	B.S.	UK
LWCF304 S11	B.S.	UK
LWHT304 S11	B.S.	UK

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Si		1.00
Mn		2.00
P		0.045
S		0.030
Cr	17.00	19.00
Ni	9.00	12.00
Mo

Mechanical Properties

Tensile strength	725～742	σb/MPa
Yield Strength	230	σ 0.2 ≥/MPa
Elongation	02	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	367～164	-
HRC	30	-

Physical Properties

Thermal expansion	88-52	e-6/K
Thermal conductivity	20-66	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5801-1734	째C
Density	7971-3125	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)
LW20 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