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L3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of L3

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ASTM L3

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This page is mainly introduced the L3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of L3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Low Alloy Tool Steel

Steel Garde:L3
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:Low Alloy Tool Steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
L3	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.95	1.10
Si	0.10	0.50
Mn	0.25	0.80
P		0.030
S		0.030
Cr	1.30	1.70
Mo
V	0.10	0.30
W
Ni＋Cu		0.75

Mechanical Properties

Tensile strength	383～365	σb/MPa
Yield Strength	534	σ 0.2 ≥/MPa
Elongation	25	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	176～677	-
HRC	30	-

Physical Properties

Thermal expansion	99-64	e-6/K
Thermal conductivity	73-90	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0114-2905	째C
Density	0757-9067	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)
L3 Tool Die Steels	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