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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	418～678	σb/MPa
Yield Strength	275	σ 0.2 ≥/MPa
Elongation	58	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	427～331	-
HRC	30	-

Physical Properties

Thermal expansion	39-08	e-6/K
Thermal conductivity	76-69	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1957-9033	째C
Density	7428-6552	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