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Grey Cast Iron vs. N08330 Stainless Steel

Both grey cast iron and N08330 stainless steel are iron alloys. They have 45% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
180
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
34
Fatigue Strength, MPa 69 to 170
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
76
Shear Strength, MPa 180 to 610
360
Tensile Strength: Ultimate (UTS), MPa 160 to 450
550
Tensile Strength: Yield (Proof), MPa 98 to 290
230

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1180
1340
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 46
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
32
Density, g/cm3 7.5
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.4
Embodied Energy, MJ/kg 21
77
Embodied Water, L/kg 44
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
150
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 5.8 to 17
19
Strength to Weight: Bending, points 8.7 to 17
18
Thermal Diffusivity, mm2/s 13
3.1
Thermal Shock Resistance, points 6.0 to 17
13

Alloy Composition

Carbon (C), % 3.1 to 3.4
0 to 0.080
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 92.1 to 93.9
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.5 to 0.7
0 to 2.0
Nickel (Ni), % 0
34 to 37
Phosphorus (P), % 0 to 0.9
0 to 0.030
Silicon (Si), % 2.5 to 2.8
0.75 to 1.5
Sulfur (S), % 0 to 0.15
0 to 0.030
Tin (Sn), % 0
0 to 0.025