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GH1138 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GH1138

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GB GH1138

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This page is mainly introduced the GH1138 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GH1138,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
GH1138

Steel Garde:GH1138
Type:Superalloys
Country:China
Standard:GB
Application:Iron-based superalloy

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.10
Cr	18.0	22.0
Mo	2.0	2.6
Ni	35.0	40.0
W	4.5	5.2
Al		0.5
Nb	1.0	1.7
B		0.008
Fe		Remainder
Mn	1.0	2.0
Si		0.8
Ce		0.05
N	0.10	0.25
Zr		0.05

Mechanical Properties

Tensile strength	302～434	σb/MPa
Yield Strength	247	σ 0.2 ≥/MPa
Elongation	58	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	535～055	-
HRC	30	-

Physical Properties

Thermal expansion	59-19	e-6/K
Thermal conductivity	96-91	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0326-4924	째C
Density	7618-6120	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)
GH1138 Superalloys	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