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U21302 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U21302

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GBT U21302

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This page is mainly introduced the U21302 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U21302,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
U21302

Steel Garde:U21302
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	220～176	σb/MPa
Yield Strength	853	σ 0.2 ≥/MPa
Elongation	29	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	053～522	-
HRC	30	-

Physical Properties

Thermal expansion	18-38	e-6/K
Thermal conductivity	59-15	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3634-7953	째C
Density	8306-9490	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)
U21302 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