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301S81 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 301S81

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B.S. 301S81

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This page is mainly introduced the 301S81 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 301S81,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for stainless steel wire for mechanical springs

Steel Garde:301S81
Type:Stainless Steels
Country:UK
Standard:B.S.
Standard Number:

ITEM Standard Number Descriptions

1 BS 2056 Specification for stainless steel wire for mechanical springs
Application:Specification for stainless steel wire for mechanical springs

ITEM	Standard Number	Descriptions
1	BS 2056	Specification for stainless steel wire for mechanical springs

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.09
Si		1.00
Mn		1.00
P		0.045
S		0.030
Cr	16.00	18.00
Mo
Ni	6.50	7.75
Al	0.75	1.50

Mechanical Properties

Tensile strength	487～251	σb/MPa
Yield Strength	400	σ 0.2 ≥/MPa
Elongation	69	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	953～345	-
HRC	30	-

Physical Properties

Thermal expansion	06-46	e-6/K
Thermal conductivity	56-37	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0220-0605	째C
Density	5340-6576	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)
301S81 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