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A2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A2

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ASTM A2

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This page is mainly introduced the A2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A2

Steel Garde:A2
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Relevant products:

1.4980/A286/660/1.2779

ASTM A269 TP304...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
CPM 10V	AISI	USA
BA2		UK
BA2		UK
BA2		UK
BA2		UK
BA2		UK
BA2		UK
ASTM A2Q	AISI	USA
A21	STAS/SR	Romania
HA200	AS	Australia
CA2	AS	Australia
HA250	AS	Australia
CA220	AS	Australia
CA260	AS	Australia
VAT A286	ABNT	Brazil
A20204	GBT	China
A20374	GBT	China
A20404	GBT	China
A20378	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	903～387	σb/MPa
Yield Strength	798	σ 0.2 ≥/MPa
Elongation	66	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	573～950	-
HRC	30	-

Physical Properties

Thermal expansion	26-84	e-6/K
Thermal conductivity	94-29	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3523-9825	째C
Density	1784-5736	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)
A2 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