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Automotive Malleable Cast Iron vs. EN 1.3975 Stainless Steel

Both automotive malleable cast iron and EN 1.3975 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 290
190
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.0 to 10
27
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 70
76
Tensile Strength: Ultimate (UTS), MPa 350 to 720
660
Tensile Strength: Yield (Proof), MPa 220 to 590
320

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Melting Completion (Liquidus), °C 1410
1360
Melting Onset (Solidus), °C 1370
1320
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.6
7.5
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 45
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
150
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 13 to 26
24
Strength to Weight: Bending, points 14 to 24
22
Thermal Shock Resistance, points 9.9 to 21
15

Alloy Composition

Carbon (C), % 2.2 to 2.9
0 to 0.050
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 93.6 to 96.7
58.2 to 65.4
Manganese (Mn), % 0.15 to 1.3
7.0 to 9.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0.020 to 0.15
0 to 0.045
Silicon (Si), % 0.9 to 1.9
3.5 to 4.5
Sulfur (S), % 0.020 to 0.2
0 to 0.030