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CNS 440B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 440B

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CNS CNS 440B

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This page is mainly introduced the CNS 440B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 440B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard martensite stainless steel

Steel Garde:CNS 440B
Type:Special Alloy
Country:China
Standard:CNS
Application:CNS standard martensite stainless steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
AISI 440B	AISI	USA
ASTM 440B	ASTM	USA
SUS440B	JIS	Japan
STS440B	KS	Korea
STS440B	KS	Korea
CNS 440B	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	546～575	σb/MPa
Yield Strength	119	σ 0.2 ≥/MPa
Elongation	77	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	495～376	-
HRC	30	-

Physical Properties

Thermal expansion	30-83	e-6/K
Thermal conductivity	76-12	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8252-7017	째C
Density	2590-7137	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)
CNS 440B 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