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Grey Cast Iron vs. EN 1.4606 Stainless Steel

Both grey cast iron and EN 1.4606 stainless steel are iron alloys. They have 55% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grey 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, % 9.6
23 to 39
Fatigue Strength, MPa 69 to 170
240 to 420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69
75
Shear Strength, MPa 180 to 610
410 to 640
Tensile Strength: Ultimate (UTS), MPa 160 to 450
600 to 1020
Tensile Strength: Yield (Proof), MPa 98 to 290
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1180
1380
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
26
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 1.5
6.0
Embodied Energy, MJ/kg 21
87
Embodied Water, L/kg 44
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
200 to 1010
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 5.8 to 17
21 to 36
Strength to Weight: Bending, points 8.7 to 17
20 to 28
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 6.0 to 17
21 to 35

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 3.1 to 3.4
0 to 0.080
Chromium (Cr), % 0
13 to 16
Iron (Fe), % 92.1 to 93.9
49.2 to 59
Manganese (Mn), % 0.5 to 0.7
1.0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Phosphorus (P), % 0 to 0.9
0 to 0.025
Silicon (Si), % 2.5 to 2.8
0 to 1.0
Sulfur (S), % 0 to 0.15
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5