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STS302 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS302

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KS STS302

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This page is mainly introduced the STS302 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS302,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:STS302
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3535 (2002)	Stainless steel wires for springs
2	D 3692 (2001)	Cold finished stainless steel bars
3	D 3698 (2008)	Cold rolled stainless steel plates, sheets and strip
4	D 3702 (2008)	Stainless steel wire rods
5	D 3705 (2008)	Hot rolled stainless steel plates, sheets and strip
6	D 3706 (2008)	Stainless steel bars

Metallographic Structure:Austenite
Application:Stainless steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS302FB	KS	Korea
STS302B	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	17.00	19.00
Ni	8.00	10.00
Mo
N

Mechanical Properties

Tensile strength	384～617	σb/MPa
Yield Strength	531	σ 0.2 ≥/MPa
Elongation	19	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	835～990	-
HRC	30	-

Physical Properties

Thermal expansion	52-78	e-6/K
Thermal conductivity	50-86	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0947-7147	째C
Density	1803-3815	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)
STS302 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