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GH2018 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GH2018

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GB GH2018

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This page is mainly introduced the GH2018 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GH2018,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
GH2018

Steel Garde:GH2018
Type:Stainless Steels
Country:China
Standard:GB

Standard Number:

ITEM	Standard Number	Descriptions
1	GB/T 14992 (1994)	Classification and designation for superalloys and high temperature intermetallic materials
2	GB/T 14995 (2010)	Hot-rolled superalloy sheets
3	GB/T 14996 (2010)	Cold-Rolled heat-resisting superalloy sheets

Application:Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.06
Cr	18.0	21.0
Mo	3.70	4.30
Ni	40.0	44.0
W	1.80	2.20
Al	0.35	0.75
Ti	1.80	2.20
Si		0.60
Mn		0.50
P		0.020
S		0.015
B		0.015
Ce		0.02
Zr		0.05

Mechanical Properties

Tensile strength	621～686	σb/MPa
Yield Strength	688	σ 0.2 ≥/MPa
Elongation	39	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	709～599	-
HRC	30	-

Physical Properties

Thermal expansion	71-95	e-6/K
Thermal conductivity	63-43	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3909-9817	째C
Density	7620-9126	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)
GH2018 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