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STS301 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS301

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KS STS301

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This page is mainly introduced the STS301 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS301,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:STS301
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3534 (2002)	Cold rolled stainless steel strip for springs
2	D 3698 (2008)	Cold rolled stainless steel plates, sheets and strip
3	D 3705 (2008)	Hot rolled stainless steel plates, sheets and strip
4	D 3706 (2008)	Stainless steel bars

Metallographic Structure:Austenite
Application:Stainless steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS301CSP	KS	Korea
STS301L	KS	Korea
STS301J1	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		1.00
Mn		2.00
P		0.045
S		0.030
Cr	16.00	18.00
Ni	6.00	8.00
Mo
N

Mechanical Properties

Tensile strength	542～625	σb/MPa
Yield Strength	148	σ 0.2 ≥/MPa
Elongation	95	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	320～030	-
HRC	30	-

Physical Properties

Thermal expansion	62-68	e-6/K
Thermal conductivity	49-79	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7397-7806	째C
Density	5552-2468	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)
STS301 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