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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.
Austenitic 309

Steel Garde:Austenitic 309
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Heat-Resistant Steel

Relevant products:

UNS K30960 Bright Round Bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Austenitic 31	CNS	China
Austenitic 35	CNS	China
Austenitic 36	CNS	China
Austenitic 37	CNS	China
Austenitic 38	CNS	China
Austenitic 309	CNS	China
Austenitic 310	CNS	China
Austenitic 330	CNS	China
Austenitic 660	CNS	China
Austenitic 661	CNS	China
Austenitic 309	CNS	China
Austenitic 310	CNS	China
Austenitic 330	CNS	China
Austenitic 660	CNS	China
Austenitic 661	CNS	China
Austenitic 31	CNS	China
Austenitic 35	CNS	China
Austenitic 36	CNS	China
Austenitic 37	CNS	China
Austenitic 38	CNS	China
1.2309	DIN	Germany
SUS309TP	JIS	Japan
309S24		UK
309S20		UK
UNS J91309	AISI	USA
CNS 309S	CNS	China
STS309S	KS	Korea
STR309	KS	Korea
S30908	GBT	China
S30920	GBT	China
CNS 309S	CNS	China
CNS 309S	CNS	China
CNS 309S	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	311～653	σb/MPa
Yield Strength	938	σ 0.2 ≥/MPa
Elongation	79	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	450～625	-
HRC	30	-

Physical Properties

Thermal expansion	86-33	e-6/K
Thermal conductivity	78-76	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5928-8371	째C
Density	7343-8505	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