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ASTM Grade LC3 Steel vs. AWS E349

Both ASTM grade LC3 steel and AWS E349 are iron alloys. They have 70% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC3 steel and the bottom bar is AWS E349.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
29
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 570
770

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
4.9
Embodied Energy, MJ/kg 23
72
Embodied Water, L/kg 52
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.13
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 94.4 to 96.5
60.5 to 71.1
Manganese (Mn), % 0.5 to 0.8
0.5 to 2.5
Molybdenum (Mo), % 0
0.35 to 0.65
Nickel (Ni), % 3.0 to 4.0
8.0 to 10
Niobium (Nb), % 0
0.75 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.045
0 to 0.030
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
0.1 to 0.3