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SAE-AISI L6 Steel vs. ASTM A387 Grade 2 Steel

Both SAE-AISI L6 steel and ASTM A387 grade 2 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI L6 steel and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 670 to 2090
470 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
45
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.6
Embodied Energy, MJ/kg 28
20
Embodied Water, L/kg 54
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 74
16 to 20
Strength to Weight: Bending, points 22 to 46
17 to 19
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 22 to 70
14 to 16

Alloy Composition

Carbon (C), % 0.65 to 0.75
0.050 to 0.21
Chromium (Cr), % 0.6 to 1.2
0.5 to 0.8
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.6 to 97.3
97.1 to 98.3
Manganese (Mn), % 0.25 to 0.8
0.55 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.45 to 0.6
Nickel (Ni), % 1.3 to 2.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0 to 0.3
0

Comparable Variants