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Grey Cast Iron vs. AWS ERNiCrCoMo-1

Grey cast iron belongs to the iron alloys classification, while AWS ERNiCrCoMo-1 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 ERNiCrCoMo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
210
Elongation at Break, % 9.6
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69
81
Tensile Strength: Ultimate (UTS), MPa 160 to 450
710

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1180
1370
Specific Heat Capacity, J/kg-K 490
450
Thermal Conductivity, W/m-K 46
13
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
75
Density, g/cm3 7.5
8.5
Embodied Carbon, kg CO2/kg material 1.5
10
Embodied Energy, MJ/kg 21
140
Embodied Water, L/kg 44
350

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 5.8 to 17
23
Strength to Weight: Bending, points 8.7 to 17
21
Thermal Diffusivity, mm2/s 13
3.5
Thermal Shock Resistance, points 6.0 to 17
19

Alloy Composition


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Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 3.1 to 3.4
0.050 to 0.15
Chromium (Cr), % 0
20 to 24
Cobalt (Co), % 0
10 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 92.1 to 93.9
0 to 3.0
Manganese (Mn), % 0.5 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
42.7 to 61.2
Phosphorus (P), % 0 to 0.9
0 to 0.030
Silicon (Si), % 2.5 to 2.8
0 to 1.0
Sulfur (S), % 0 to 0.15
0 to 0.015
Titanium (Ti), % 0
0 to 0.6
Residuals, % 0
0 to 0.5