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SUS 309STP chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 309STP

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JIS SUS 309STP

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This page is mainly introduced the SUS 309STP chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 309STP,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel pipes

Steel Garde:SUS 309STP
Type:Stainless Steels
Country:Japan
Standard:JIS
Standard Number:

ITEM Standard Number Descriptions

1 G 3459 (2012) Stainless steel pipes
Metallographic Structure:Austenite
Application:Stainless steel pipes

ITEM	Standard Number	Descriptions
1	G 3459 (2012)	Stainless steel pipes

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SUS 309STP Y	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.04
S		0.03
Cr	2.00	24.00
Ni	12.00	15.00
Mo

Mechanical Properties

Tensile strength	865～195	σb/MPa
Yield Strength	680	σ 0.2 ≥/MPa
Elongation	91	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	207～864	-
HRC	30	-

Physical Properties

Thermal expansion	50-17	e-6/K
Thermal conductivity	48-70	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8590-6275	째C
Density	5252-7963	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)
SUS 309STP 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