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Grey Cast Iron vs. AWS ENiCrMo-3

Grey cast iron belongs to the iron alloys classification, while AWS ENiCrMo-3 belongs to the nickel alloys. There are 24 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 grey cast iron and the bottom bar is AWS ENiCrMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
34
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69
79
Tensile Strength: Ultimate (UTS), MPa 160 to 450
870

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1380
1480
Melting Onset (Solidus), °C 1180
1430
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 46
11
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
80
Density, g/cm3 7.5
8.6
Embodied Carbon, kg CO2/kg material 1.5
14
Embodied Energy, MJ/kg 21
190
Embodied Water, L/kg 44
290

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 5.8 to 17
28
Strength to Weight: Bending, points 8.7 to 17
24
Thermal Diffusivity, mm2/s 13
2.8
Thermal Shock Resistance, points 6.0 to 17
25

Alloy Composition


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Carbon (C), % 3.1 to 3.4
0 to 0.1
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 0
0 to 0.12
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 92.1 to 93.9
0 to 7.0
Manganese (Mn), % 0.5 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
55 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0 to 0.9
0 to 0.030
Silicon (Si), % 2.5 to 2.8
0 to 0.75
Sulfur (S), % 0 to 0.15
0 to 0.020
Residuals, % 0
0 to 0.5