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

Cross Reference Table(Equivalent Materials):

Material Standard Country
L3 SAE USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
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 851~168 σb/MPa
Yield Strength 006 σ 0.2 ≥/MPa
Elongation 37 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 707~752 -
HRC 30 -

Physical Properties

Thermal expansion 31-32 e-6/K
Thermal conductivity 48-80 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9898-3511 째C
Density 4676-5560 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

Technical specification/standard for download

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