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A3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A3

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ASTM A3

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This page is mainly introduced the A3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A3

Steel Garde:A3
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Relevant products:

A387 F5 / Grade 5 Coil / Sheet

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A35-586 316F20	AFNOR	France
A35-586 316F21	AFNOR	France
A35-586 316F22	AFNOR	France
A35-586 321F20	AFNOR	France
A35-586 347F20	AFNOR	France
ASTM A335 GRADE P11	ASTM	USA
ASTM A335 GRADE P22	ASTM	USA
ASTM A335 GRADE P5	ASTM	USA
ASTM A335 GRADE P9	ASTM	USA
ASTM A335 GRADE P91	ASTM	USA
ASTM A335 GRADE P92	AMS	USA
A32	STAS/SR	Romania
A36	STAS/SR	Romania
HA3	AS	Australia
HA300	AS	Australia
HA300/1	AS	Australia
HA350	AS	Australia
A30304	GBT	China
A30354	GBT	China
A30424	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	949～337	σb/MPa
Yield Strength	391	σ 0.2 ≥/MPa
Elongation	31	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	573～956	-
HRC	30	-

Physical Properties

Thermal expansion	18-44	e-6/K
Thermal conductivity	64-33	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1301-5905	째C
Density	5867-8616	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)
A3 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