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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	245～511	σb/MPa
Yield Strength	131	σ 0.2 ≥/MPa
Elongation	12	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	857～562	-
HRC	30	-

Physical Properties

Thermal expansion	83-69	e-6/K
Thermal conductivity	27-93	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3861-1462	째C
Density	9714-3056	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