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Automotive Malleable Cast Iron vs. EN 1.4874 Stainless Steel

Both automotive malleable cast iron and EN 1.4874 stainless steel are iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 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 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 290
140
Elastic (Young's, Tensile) Modulus, GPa 180
210
Elongation at Break, % 1.0 to 10
6.7
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 70
80
Tensile Strength: Ultimate (UTS), MPa 350 to 720
480
Tensile Strength: Yield (Proof), MPa 220 to 590
360

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 41
13
Thermal Expansion, µm/m-K 14
15

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
70
Density, g/cm3 7.6
8.4
Embodied Carbon, kg CO2/kg material 1.5
7.6
Embodied Energy, MJ/kg 20
110
Embodied Water, L/kg 45
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
29
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 13 to 26
16
Strength to Weight: Bending, points 14 to 24
16
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 9.9 to 21
11

Alloy Composition

Carbon (C), % 2.2 to 2.9
0.35 to 0.65
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
18.5 to 22
Iron (Fe), % 93.6 to 96.7
23 to 38.9
Manganese (Mn), % 0.15 to 1.3
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0.020 to 0.15
0 to 0.040
Silicon (Si), % 0.9 to 1.9
0 to 1.0
Sulfur (S), % 0.020 to 0.2
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0