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Automotive Malleable Cast Iron vs. S35135 Stainless Steel

Both automotive malleable cast iron and S35135 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is S35135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 1.0 to 10
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 70
79
Tensile Strength: Ultimate (UTS), MPa 350 to 720
590
Tensile Strength: Yield (Proof), MPa 220 to 590
230

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
37
Density, g/cm3 7.6
8.1
Embodied Carbon, kg CO2/kg material 1.5
6.8
Embodied Energy, MJ/kg 20
94
Embodied Water, L/kg 45
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
160
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 13 to 26
20
Strength to Weight: Bending, points 14 to 24
19
Thermal Shock Resistance, points 9.9 to 21
13

Alloy Composition

Carbon (C), % 2.2 to 2.9
0 to 0.080
Chromium (Cr), % 0
20 to 25
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 93.6 to 96.7
28.3 to 45
Manganese (Mn), % 0.15 to 1.3
0 to 1.0
Molybdenum (Mo), % 0
4.0 to 4.8
Nickel (Ni), % 0
30 to 38
Phosphorus (P), % 0.020 to 0.15
0 to 0.045
Silicon (Si), % 0.9 to 1.9
0.6 to 1.0
Sulfur (S), % 0.020 to 0.2
0 to 0.015
Titanium (Ti), % 0
0.4 to 1.0