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Grey Cast Iron vs. S35000 Stainless Steel

Both grey cast iron and S35000 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 29 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 grey cast iron and the bottom bar is S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
2.3 to 14
Fatigue Strength, MPa 69 to 170
380 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
78
Shear Strength, MPa 180 to 610
740 to 950
Tensile Strength: Ultimate (UTS), MPa 160 to 450
1300 to 1570
Tensile Strength: Yield (Proof), MPa 98 to 290
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1180
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 46
16
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
14
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.2
Embodied Energy, MJ/kg 21
44
Embodied Water, L/kg 44
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
1070 to 3360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 5.8 to 17
46 to 56
Strength to Weight: Bending, points 8.7 to 17
34 to 38
Thermal Diffusivity, mm2/s 13
4.4
Thermal Shock Resistance, points 6.0 to 17
42 to 51

Alloy Composition

Carbon (C), % 3.1 to 3.4
0.070 to 0.11
Chromium (Cr), % 0
16 to 17
Iron (Fe), % 92.1 to 93.9
72.7 to 76.9
Manganese (Mn), % 0.5 to 0.7
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0
4.0 to 5.0
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.9
0 to 0.040
Silicon (Si), % 2.5 to 2.8
0 to 0.5
Sulfur (S), % 0 to 0.15
0 to 0.030

Comparable Variants