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L4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of L4

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SAE L4

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This page is mainly introduced the L4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of L4,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:L4
Type:Tool Die Steels
Country:USA
Standard:SAE
Application:Low Alloy Tool Steel

Relevant products:

Monel400 round bar

Monel400/N04400/2....

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.90	1.10
Si	0.10	0.40
Mn	0.50	0.70
Cr	1.45	1.55
Mo
V	0.20	0.30
W

Mechanical Properties

Tensile strength	138～361	σb/MPa
Yield Strength	335	σ 0.2 ≥/MPa
Elongation	33	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	609～898	-
HRC	30	-

Physical Properties

Thermal expansion	24-02	e-6/K
Thermal conductivity	64-85	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2006-5581	째C
Density	3617-2783	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)
L4 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