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K273 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K273

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GBT K273

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This page is mainly introduced the K273 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K273,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
K273

Steel Garde:K273
Type:Special Alloy
Country:China
Standard:GBT
Application:Age hardening type iron base alloy

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	756～891	σb/MPa
Yield Strength	395	σ 0.2 ≥/MPa
Elongation	43	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	307～283	-
HRC	30	-

Physical Properties

Thermal expansion	03-61	e-6/K
Thermal conductivity	67-20	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1563-7837	째C
Density	6734-2350	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)
K273 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