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Grey Cast Iron vs. EN 1.4361 Stainless Steel

Both grey cast iron and EN 1.4361 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 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 1.4361 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
200
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 9.6
43
Fatigue Strength, MPa 69 to 170
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
75
Shear Strength, MPa 180 to 610
440
Tensile Strength: Ultimate (UTS), MPa 160 to 450
630
Tensile Strength: Yield (Proof), MPa 98 to 290
250

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Melting Completion (Liquidus), °C 1380
1370
Melting Onset (Solidus), °C 1180
1330
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
19
Density, g/cm3 7.5
7.6
Embodied Carbon, kg CO2/kg material 1.5
3.6
Embodied Energy, MJ/kg 21
52
Embodied Water, L/kg 44
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
220
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 5.8 to 17
23
Strength to Weight: Bending, points 8.7 to 17
21
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 6.0 to 17
15

Alloy Composition

Carbon (C), % 3.1 to 3.4
0 to 0.015
Chromium (Cr), % 0
16.5 to 18.5
Iron (Fe), % 92.1 to 93.9
58.7 to 65.8
Manganese (Mn), % 0.5 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
14 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.9
0 to 0.025
Silicon (Si), % 2.5 to 2.8
3.7 to 4.5
Sulfur (S), % 0 to 0.15
0 to 0.010