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Grey Cast Iron vs. EN 1.3975 Stainless Steel

Both grey cast iron and EN 1.3975 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
190
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 9.6
27
Fatigue Strength, MPa 69 to 170
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
76
Tensile Strength: Ultimate (UTS), MPa 160 to 450
660
Tensile Strength: Yield (Proof), MPa 98 to 290
320

Thermal Properties

Latent Heat of Fusion, J/g 280
340
Melting Completion (Liquidus), °C 1380
1360
Melting Onset (Solidus), °C 1180
1320
Specific Heat Capacity, J/kg-K 490
500
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.5
7.5
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 21
47
Embodied Water, L/kg 44
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
150
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 5.8 to 17
24
Strength to Weight: Bending, points 8.7 to 17
22
Thermal Shock Resistance, points 6.0 to 17
15

Alloy Composition

Carbon (C), % 3.1 to 3.4
0 to 0.050
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 92.1 to 93.9
58.2 to 65.4
Manganese (Mn), % 0.5 to 0.7
7.0 to 9.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.9
0 to 0.045
Silicon (Si), % 2.5 to 2.8
3.5 to 4.5
Sulfur (S), % 0 to 0.15
0 to 0.030