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Austenitic 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Austenitic 661

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CNS Austenitic 661

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This page is mainly introduced the Austenitic 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Austenitic 661,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Austenitic 661

Steel Garde:Austenitic 661
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Heat-Resistant Steel

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 309	CNS	China
Austenitic 310	CNS	China
Austenitic 330	CNS	China
Austenitic 660	CNS	China
Austenitic 31	CNS	China
Austenitic 35	CNS	China
Austenitic 36	CNS	China
Austenitic 37	CNS	China
Austenitic 38	CNS	China
AISI 661	AISI	USA
STR661	KS	Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	420～753	σb/MPa
Yield Strength	209	σ 0.2 ≥/MPa
Elongation	12	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	284～720	-
HRC	30	-

Physical Properties

Thermal expansion	22-89	e-6/K
Thermal conductivity	41-33	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2788-9705	째C
Density	2340-9919	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 661 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