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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	292～730	σb/MPa
Yield Strength	171	σ 0.2 ≥/MPa
Elongation	06	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	663～577	-
HRC	30	-

Physical Properties

Thermal expansion	69-50	e-6/K
Thermal conductivity	59-45	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0238-5970	째C
Density	2270-6218	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