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Automotive Malleable Cast Iron vs. S35500 Stainless Steel

Both automotive malleable cast iron and S35500 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is S35500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 1.0 to 10
14
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 70
78
Tensile Strength: Ultimate (UTS), MPa 350 to 720
1330 to 1490
Tensile Strength: Yield (Proof), MPa 220 to 590
1200 to 1280

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
16
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
16
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.5
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
3610 to 4100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 13 to 26
47 to 53
Strength to Weight: Bending, points 14 to 24
34 to 37
Thermal Diffusivity, mm2/s 11
4.4
Thermal Shock Resistance, points 9.9 to 21
44 to 49

Alloy Composition

Carbon (C), % 2.2 to 2.9
0.1 to 0.15
Chromium (Cr), % 0
15 to 16
Iron (Fe), % 93.6 to 96.7
73.2 to 77.7
Manganese (Mn), % 0.15 to 1.3
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0
4.0 to 5.0
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0.020 to 0.15
0 to 0.040
Silicon (Si), % 0.9 to 1.9
0 to 0.5
Sulfur (S), % 0.020 to 0.2
0 to 0.030

Comparable Variants