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A73204 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A73204

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GBT A73204

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This page is mainly introduced the A73204 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A73204,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A73204

Steel Garde:A73204
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	351～980	σb/MPa
Yield Strength	996	σ 0.2 ≥/MPa
Elongation	03	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	065～742	-
HRC	30	-

Physical Properties

Thermal expansion	50-61	e-6/K
Thermal conductivity	94-38	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8369-2767	째C
Density	7645-7747	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)
A73204 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