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Grade FDC Steel vs. AWS ER80S-D2

Both grade FDC steel and AWS ER80S-D2 are iron alloys. They have a very high 98% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade FDC steel and the bottom bar is AWS ER80S-D2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1680
620

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 47
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60
22
Strength to Weight: Bending, points 40
21
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 50
18

Alloy Composition


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Carbon (C), % 0.6 to 0.75
0.070 to 0.12
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.12
0 to 0.5
Iron (Fe), % 98 to 99.4
95.2 to 97.4
Manganese (Mn), % 0.5 to 1.2
1.6 to 2.1
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.1 to 0.35
0.5 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.025
Residuals, % 0
0 to 0.5