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301S21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 301S21

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B.S. 301S21

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This page is mainly introduced the 301S21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 301S21,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel

Steel Garde:301S21
Type:Stainless Steels
Country:UK
Standard:B.S.

Standard Number:

ITEM	Standard Number	Descriptions
1	BS 1449-2	Steel plate, sheet and strip. Specification for stainless and heat-resisting steel plate, sheet and strip
2	BS 5770-4	Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel

Application:Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
X10CrNi18-8, 1.4310, 301, 301S21, Z12CN17-07	EN	European

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	16.00	18.00
Mo
Ni	6.00	8.00

Mechanical Properties

Tensile strength	879～764	σb/MPa
Yield Strength	925	σ 0.2 ≥/MPa
Elongation	66	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	634～028	-
HRC	30	-

Physical Properties

Thermal expansion	83-87	e-6/K
Thermal conductivity	67-97	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9935-9137	째C
Density	6585-8905	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)
301S21 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