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Automotive Malleable Cast Iron vs. EN 1.4606 Stainless Steel

Both automotive malleable cast iron and EN 1.4606 stainless steel are iron alloys. They have 55% of their average alloy composition in common. There are 27 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 automotive malleable cast iron and the bottom bar is EN 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.0 to 10
23 to 39
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 70
75
Tensile Strength: Ultimate (UTS), MPa 350 to 720
600 to 1020
Tensile Strength: Yield (Proof), MPa 220 to 590
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
14
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
26
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 1.5
6.0
Embodied Energy, MJ/kg 20
87
Embodied Water, L/kg 45
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
200 to 1010
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 13 to 26
21 to 36
Strength to Weight: Bending, points 14 to 24
20 to 28
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 9.9 to 21
21 to 35

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 2.2 to 2.9
0 to 0.080
Chromium (Cr), % 0
13 to 16
Iron (Fe), % 93.6 to 96.7
49.2 to 59
Manganese (Mn), % 0.15 to 1.3
1.0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Phosphorus (P), % 0.020 to 0.15
0 to 0.025
Silicon (Si), % 0.9 to 1.9
0 to 1.0
Sulfur (S), % 0.020 to 0.2
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5