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Grey Cast Iron vs. Nickel 690

Grey cast iron belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
90
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
3.4 to 34
Fatigue Strength, MPa 69 to 170
180 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
79
Shear Strength, MPa 180 to 610
420 to 570
Tensile Strength: Ultimate (UTS), MPa 160 to 450
640 to 990
Tensile Strength: Yield (Proof), MPa 98 to 290
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1380
1380
Melting Onset (Solidus), °C 1180
1340
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
50
Density, g/cm3 7.5
8.3
Embodied Carbon, kg CO2/kg material 1.5
8.2
Embodied Energy, MJ/kg 21
120
Embodied Water, L/kg 44
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
160 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 5.8 to 17
21 to 33
Strength to Weight: Bending, points 8.7 to 17
20 to 27
Thermal Diffusivity, mm2/s 13
3.5
Thermal Shock Resistance, points 6.0 to 17
16 to 25

Alloy Composition

Carbon (C), % 3.1 to 3.4
0 to 0.050
Chromium (Cr), % 0
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 92.1 to 93.9
7.0 to 11
Manganese (Mn), % 0.5 to 0.7
0 to 0.5
Nickel (Ni), % 0
58 to 66
Phosphorus (P), % 0 to 0.9
0
Silicon (Si), % 2.5 to 2.8
0 to 0.5
Sulfur (S), % 0 to 0.15
0 to 0.015