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

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CNS Austenitic 309

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

Steel Garde:Austenitic 309
Type:Special Alloy
Country:China
Standard:CNS
Application:CNS standard heat resistant steel plates

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Austenitic 309	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	458～900	σb/MPa
Yield Strength	770	σ 0.2 ≥/MPa
Elongation	64	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	949～610	-
HRC	30	-

Physical Properties

Thermal expansion	03-02	e-6/K
Thermal conductivity	25-70	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0261-2785	째C
Density	6059-7375	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)
Austenitic 309 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