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AWS E240 vs. Ductile Cast Iron

Both AWS E240 and ductile cast iron are iron alloys. They have 64% of their average alloy composition in common. 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 E240 and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
170 to 180
Elongation at Break, % 17
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 77
64 to 70
Tensile Strength: Ultimate (UTS), MPa 770
460 to 920

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1390
1160
Melting Onset (Solidus), °C 1350
1120
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
31 to 36
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 14
1.9
Density, g/cm3 7.7
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 3.0
1.5
Embodied Energy, MJ/kg 42
21
Embodied Water, L/kg 160
43

Common Calculations

Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 25
24 to 26
Strength to Weight: Axial, points 28
17 to 35
Strength to Weight: Bending, points 24
18 to 29
Thermal Diffusivity, mm2/s 3.9
8.9 to 10
Thermal Shock Resistance, points 19
17 to 35

Alloy Composition

Carbon (C), % 0 to 0.060
3.0 to 3.5
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 68.4
93.7 to 95.5
Manganese (Mn), % 10.5 to 13.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.1 to 0.3
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