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SUH661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH661

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CNS SUH661

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This page is mainly introduced the SUH661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH661,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard heat resistant steel plate of the steel grade and chemical composition

Steel Garde:SUH661
Type:Stainless Steels
Country:China
Standard:CNS
Metallographic Structure:Austenite
Application:CNS standard heat resistant steel plate of the steel grade and chemical composition

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SUH661	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.08	0.16
Si		1.00
Mn	1.00	2.00
P		0.040
S		0.030
Cr	20.00	22.50
Ni	19.00	21.00
Mo	2.50	3.50
Co	18.50	21.00
W	2.00	3.00
Nb	0.75	1.25
N	0.10	0.20

Mechanical Properties

Tensile strength	227～792	σb/MPa
Yield Strength	418	σ 0.2 ≥/MPa
Elongation	20	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	607～293	-
HRC	30	-

Physical Properties

Thermal expansion	19-76	e-6/K
Thermal conductivity	35-71	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9855-8622	째C
Density	4445-5750	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)
SUH661 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