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AWS E90C-K3 vs. AWS ER80S-D2

Both AWS E90C-K3 and AWS ER80S-D2 are iron alloys. Both are furnished in the as-welded condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is AWS E90C-K3 and the bottom bar is AWS ER80S-D2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 55
19
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 710
620
Tensile Strength: Yield (Proof), MPa 600
540

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.6
Embodied Energy, MJ/kg 23
21
Embodied Water, L/kg 53
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
110
Resilience: Unit (Modulus of Resilience), kJ/m3 980
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0 to 0.15
0.070 to 0.12
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.35
0 to 0.5
Iron (Fe), % 92.6 to 98.5
95.2 to 97.4
Manganese (Mn), % 0.75 to 2.3
1.6 to 2.1
Molybdenum (Mo), % 0.25 to 0.65
0.4 to 0.6
Nickel (Ni), % 0.5 to 2.5
0 to 0.15
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.8
0.5 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.025
Vanadium (V), % 0 to 0.030
0
Residuals, % 0
0 to 0.5