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A8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A8

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ASTM A8

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This page is mainly introduced the A8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A8

Steel Garde:A8
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
H10	ASTM	USA
CA85T	AS	Australia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	035～825	σb/MPa
Yield Strength	680	σ 0.2 ≥/MPa
Elongation	72	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	241～616	-
HRC	30	-

Physical Properties

Thermal expansion	46-89	e-6/K
Thermal conductivity	16-98	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2089-1260	째C
Density	3978-6471	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)
A8 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