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L20158 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of L20158

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GBT L20158

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This page is mainly introduced the L20158 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of L20158,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
L20158

Steel Garde:L20158
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	454～381	σb/MPa
Yield Strength	343	σ 0.2 ≥/MPa
Elongation	24	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	173～276	-
HRC	30	-

Physical Properties

Thermal expansion	19-96	e-6/K
Thermal conductivity	07-32	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1855-5359	째C
Density	6475-8547	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)
L20158 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