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Automotive Malleable Cast Iron vs. EN 1.4807 Stainless Steel

Both automotive malleable cast iron and EN 1.4807 stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 1.4807 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 290
140
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.0 to 10
4.5
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 70
75
Tensile Strength: Ultimate (UTS), MPa 350 to 720
480
Tensile Strength: Yield (Proof), MPa 220 to 590
250

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 41
12
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
39
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 1.5
6.8
Embodied Energy, MJ/kg 20
97
Embodied Water, L/kg 45
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
18
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 13 to 26
17
Strength to Weight: Bending, points 14 to 24
17
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 9.9 to 21
12

Alloy Composition

Carbon (C), % 2.2 to 2.9
0.3 to 0.5
Chromium (Cr), % 0
17 to 20
Iron (Fe), % 93.6 to 96.7
36.6 to 46.7
Manganese (Mn), % 0.15 to 1.3
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
34 to 36
Niobium (Nb), % 0
1.0 to 1.8
Phosphorus (P), % 0.020 to 0.15
0 to 0.040
Silicon (Si), % 0.9 to 1.9
1.0 to 2.5
Sulfur (S), % 0.020 to 0.2
0 to 0.030