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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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GBT 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:Special Alloy
Country:China
Standard:GBT
Application:High temperature iron base alloy

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	722～537	σb/MPa
Yield Strength	338	σ 0.2 ≥/MPa
Elongation	04	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	920～343	-
HRC	30	-

Physical Properties

Thermal expansion	89-51	e-6/K
Thermal conductivity	08-49	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4172-3144	째C
Density	7024-1176	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 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