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320S18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 320S18

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B.S. 320S18

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This page is mainly introduced the 320S18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 320S18,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for stainless and heat-resisting steel round wire

Steel Garde:320S18
Type:Stainless Steels
Country:UK
Standard:B.S.
Standard Number:

ITEM Standard Number Descriptions

1 BS 1554 Specification for stainless and heat-resisting steel round wire
Application:Specification for stainless and heat-resisting steel round wire

ITEM	Standard Number	Descriptions
1	BS 1554	Specification for stainless and heat-resisting steel round wire

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	16.50	18.50
Mo	2.00	2.50
Ni	10.50	13.50
Ti		0.80

Mechanical Properties

Tensile strength	214～161	σb/MPa
Yield Strength	337	σ 0.2 ≥/MPa
Elongation	90	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	100～156	-
HRC	30	-

Physical Properties

Thermal expansion	53-58	e-6/K
Thermal conductivity	23-97	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7356-6716	째C
Density	6800-0707	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)
320S18 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