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STS309S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS309S

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KS STS309S

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This page is mainly introduced the STS309S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS309S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
KS standard austenite stainless steel bars(KS D3706-1992)

Steel Garde:STS309S
Type:Special Alloy
Country:Korea
Standard:KS
Application:KS standard austenite stainless steel bars(KS D3706-1992)

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	498～010	σb/MPa
Yield Strength	873	σ 0.2 ≥/MPa
Elongation	56	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	261～912	-
HRC	30	-

Physical Properties

Thermal expansion	53-13	e-6/K
Thermal conductivity	98-25	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3494-4438	째C
Density	5340-8898	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)
STS309S Special Alloy	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