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SAE-AISI D4 Steel vs. SAE-AISI L2 Steel

Both SAE-AISI D4 steel and SAE-AISI L2 steel are iron alloys. They have 86% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is SAE-AISI L2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
72
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
590 to 1960

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
44
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.9
Embodied Energy, MJ/kg 49
27
Embodied Water, L/kg 100
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
21 to 70
Strength to Weight: Bending, points 24 to 47
20 to 45
Thermal Diffusivity, mm2/s 8.3
12
Thermal Shock Resistance, points 23 to 63
19 to 65

Alloy Composition

Carbon (C), % 2.1 to 2.4
0.45 to 1.0
Chromium (Cr), % 11 to 13
0.7 to 1.2
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 80.6 to 86.3
95.5 to 98.7
Manganese (Mn), % 0 to 0.6
0.1 to 0.9
Molybdenum (Mo), % 0.7 to 1.2
0 to 0.25
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 1.0
0.1 to 0.3

Comparable Variants