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8740H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 8740H

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AS 8740H

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This page is mainly introduced the 8740H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 8740H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
8740H

Steel Garde:8740H
Type:Special Alloy
Country:Australia
Standard:AS
Application:Australia Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	490～839	σb/MPa
Yield Strength	128	σ 0.2 ≥/MPa
Elongation	27	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	253～980	-
HRC	30	-

Physical Properties

Thermal expansion	69-80	e-6/K
Thermal conductivity	01-72	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6059-4379	째C
Density	1957-8657	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)
8740H 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