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Austempered Cast Iron vs. N06985 Nickel

Austempered cast iron belongs to the iron alloys classification, while N06985 nickel belongs to the nickel alloys. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
210
Elongation at Break, % 1.1 to 13
45
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 62 to 69
80
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
690
Tensile Strength: Yield (Proof), MPa 560 to 1460
260

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1380
1350
Melting Onset (Solidus), °C 1340
1260
Specific Heat Capacity, J/kg-K 490
450
Thermal Conductivity, W/m-K 42
10
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
55
Density, g/cm3 7.5
8.4
Embodied Carbon, kg CO2/kg material 1.8
8.8
Embodied Energy, MJ/kg 25
120
Embodied Water, L/kg 48
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
250
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 32 to 66
23
Strength to Weight: Bending, points 27 to 44
21
Thermal Diffusivity, mm2/s 11
2.6
Thermal Shock Resistance, points 25 to 53
16

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0 to 0.015
Chromium (Cr), % 0 to 0.1
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0 to 0.8
1.5 to 2.5
Iron (Fe), % 89.6 to 94
18 to 21
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0 to 1.0
Molybdenum (Mo), % 0 to 0.3
6.0 to 8.0
Nickel (Ni), % 0 to 2.0
35.9 to 53.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tin (Sn), % 0 to 0.020
0
Tungsten (W), % 0
0 to 1.5
Vanadium (V), % 0 to 0.1
0