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STS309STPY chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS309STPY

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KS STS309STPY

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This page is mainly introduced the STS309STPY chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS309STPY,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Large diameter welded stainless steel pipes

Steel Garde:STS309STPY
Type:Stainless Steels
Country:Korea
Standard:KS
Standard Number:

ITEM Standard Number Descriptions

1 D 3588 (2009) Large diameter welded stainless steel pipes
Metallographic Structure:Austenite
Application:Large diameter welded stainless steel pipes

ITEM	Standard Number	Descriptions
1	D 3588 (2009)	Large diameter welded stainless steel pipes

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS309S	KS	Korea
STS309STP	KS	Korea
STS309STB	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.045
S		0.030
Cr	22.00	24.00
Ni	12.00	15.00
Mo
N

Mechanical Properties

Tensile strength	968～797	σb/MPa
Yield Strength	750	σ 0.2 ≥/MPa
Elongation	27	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	363～476	-
HRC	30	-

Physical Properties

Thermal expansion	26-70	e-6/K
Thermal conductivity	51-51	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6321-2914	째C
Density	0435-3957	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)
STS309STPY 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