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Ductile Cast Iron vs. N08810 Stainless Steel

Both ductile cast iron and N08810 stainless steel are iron alloys. They have 46% of their average alloy composition in common. There are 29 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 ductile cast iron and the bottom bar is N08810 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
200
Elongation at Break, % 2.1 to 20
33
Poisson's Ratio 0.28 to 0.31
0.28
Shear Modulus, GPa 64 to 70
77
Shear Strength, MPa 420 to 800
340
Tensile Strength: Ultimate (UTS), MPa 460 to 920
520
Tensile Strength: Yield (Proof), MPa 310 to 670
200

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 290
1100
Melting Completion (Liquidus), °C 1160
1400
Melting Onset (Solidus), °C 1120
1350
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 31 to 36
12
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
30
Density, g/cm3 7.1 to 7.5
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.3
Embodied Energy, MJ/kg 21
76
Embodied Water, L/kg 43
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
140
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
100
Stiffness to Weight: Axial, points 12 to 14
14
Stiffness to Weight: Bending, points 24 to 26
24
Strength to Weight: Axial, points 17 to 35
18
Strength to Weight: Bending, points 18 to 29
18
Thermal Diffusivity, mm2/s 8.9 to 10
3.0
Thermal Shock Resistance, points 17 to 35
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 3.0 to 3.5
0.050 to 0.1
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 93.7 to 95.5
39.5 to 50.7
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
30 to 35
Phosphorus (P), % 0 to 0.080
0 to 0.045
Silicon (Si), % 1.5 to 2.8
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6