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NCF718 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NCF718

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KS NCF718

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This page is mainly introduced the NCF718 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NCF718,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Corrosion - resisting and heat - resisting superalloy plates and sheets

Steel Garde:NCF718
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3531 (2007)	Corrosion - resisting and heat - resisting superalloy bars
2	D 3532 (2002)	Corrosion - resisting and heat - resisting superalloy plates and sheets

Application:Corrosion - resisting and heat - resisting superalloy plates and sheets

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		0.35
Mn		0.35
P		0.015
S		0.015
Cr	17.00	21.00
Ni	50.00	55.00
Cu		0.30
Al	0.20	0.80
Ti	0.65	1.15
Fe		remaining
Nb+Ta	4.75	5.50
Mo	2.80	3.30
B		0.006

Mechanical Properties

Tensile strength	640～136	σb/MPa
Yield Strength	719	σ 0.2 ≥/MPa
Elongation	90	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	153～109	-
HRC	30	-

Physical Properties

Thermal expansion	83-53	e-6/K
Thermal conductivity	48-64	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4784-6259	째C
Density	3144-1750	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)
NCF718 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