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Ductile Cast Iron vs. AWS ENiCrCoMo-1

Ductile cast iron belongs to the iron alloys classification, while AWS ENiCrCoMo-1 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ductile cast iron and the bottom bar is AWS ENiCrCoMo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
210
Elongation at Break, % 2.1 to 20
28
Poisson's Ratio 0.28 to 0.31
0.29
Shear Modulus, GPa 64 to 70
82
Tensile Strength: Ultimate (UTS), MPa 460 to 920
710

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1160
1430
Melting Onset (Solidus), °C 1120
1380
Specific Heat Capacity, J/kg-K 490
440
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
75
Density, g/cm3 7.1 to 7.5
8.5
Embodied Carbon, kg CO2/kg material 1.5
11
Embodied Energy, MJ/kg 21
140
Embodied Water, L/kg 43
340

Common Calculations

Stiffness to Weight: Axial, points 12 to 14
14
Stiffness to Weight: Bending, points 24 to 26
23
Strength to Weight: Axial, points 17 to 35
23
Strength to Weight: Bending, points 18 to 29
21
Thermal Shock Resistance, points 17 to 35
19

Alloy Composition

Carbon (C), % 3.0 to 3.5
0.050 to 0.15
Chromium (Cr), % 0
21 to 26
Cobalt (Co), % 0
9.0 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 93.7 to 95.5
0 to 5.0
Manganese (Mn), % 0
0.3 to 2.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
38.6 to 61.7
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.080
0 to 0.030
Silicon (Si), % 1.5 to 2.8
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Residuals, % 0
0 to 0.5