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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	996～415	σb/MPa
Yield Strength	752	σ 0.2 ≥/MPa
Elongation	59	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	940～829	-
HRC	30	-

Physical Properties

Thermal expansion	01-68	e-6/K
Thermal conductivity	39-64	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1931-6935	째C
Density	6996-7391	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