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AWS E3155 vs. Ductile Cast Iron

Both AWS E3155 and ductile cast iron are iron alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
170 to 180
Elongation at Break, % 23
2.1 to 20
Poisson's Ratio 0.29
0.28 to 0.31
Shear Modulus, GPa 81
64 to 70
Tensile Strength: Ultimate (UTS), MPa 770
460 to 920

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1460
1160
Melting Onset (Solidus), °C 1410
1120
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 13
31 to 36
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
1.9
Density, g/cm3 8.4
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 110
21
Embodied Water, L/kg 300
43

Common Calculations

Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 24
24 to 26
Strength to Weight: Axial, points 26
17 to 35
Strength to Weight: Bending, points 22
18 to 29
Thermal Diffusivity, mm2/s 3.3
8.9 to 10
Thermal Shock Resistance, points 20
17 to 35

Alloy Composition

Carbon (C), % 0 to 0.1
3.0 to 3.5
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 23.3 to 36.3
93.7 to 95.5
Manganese (Mn), % 1.0 to 2.5
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.080
Silicon (Si), % 0 to 1.0
1.5 to 2.8
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.0 to 3.0
0