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SAE-AISI L2 Steel vs. ASTM A369 Grade FP12

Both SAE-AISI L2 steel and ASTM A369 grade FP12 are iron alloys. Their average alloy composition is basically identical. 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 L2 steel and the bottom bar is ASTM A369 grade FP12.

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 590 to 1960
470

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
45
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.6
Embodied Energy, MJ/kg 27
21
Embodied Water, L/kg 51
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 70
17
Strength to Weight: Bending, points 20 to 45
17
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 19 to 65
14

Alloy Composition

Carbon (C), % 0.45 to 1.0
0.050 to 0.15
Chromium (Cr), % 0.7 to 1.2
0.8 to 1.3
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 95.5 to 98.7
96.8 to 98.4
Manganese (Mn), % 0.1 to 0.9
0.3 to 0.61
Molybdenum (Mo), % 0 to 0.25
0.44 to 0.65
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0.1 to 0.3
0