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U20702 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U20702

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This page is mainly introduced the U20702 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U20702,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
U20702

Steel Garde:U20702
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	678～511	σb/MPa
Yield Strength	997	σ 0.2 ≥/MPa
Elongation	33	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	541～449	-
HRC	30	-

Physical Properties

Thermal expansion	07-63	e-6/K
Thermal conductivity	67-62	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6690-5029	째C
Density	1938-6414	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)
U20702 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