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Grey Cast Iron vs. EN 1.4805 Stainless Steel

Both grey cast iron and EN 1.4805 stainless steel are iron alloys. They have 53% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is EN 1.4805 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
140
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
9.0
Fatigue Strength, MPa 69 to 170
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
77
Tensile Strength: Ultimate (UTS), MPa 160 to 450
490
Tensile Strength: Yield (Proof), MPa 98 to 290
250

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1180
1350
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 11
16

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
4.7
Embodied Energy, MJ/kg 21
66
Embodied Water, L/kg 44
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
37
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 5.8 to 17
17
Strength to Weight: Bending, points 8.7 to 17
18
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 6.0 to 17
11

Alloy Composition

Carbon (C), % 3.1 to 3.4
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
Iron (Fe), % 92.1 to 93.9
44.9 to 56.8
Manganese (Mn), % 0.5 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0 to 0.9
0 to 0.040
Silicon (Si), % 2.5 to 2.8
1.0 to 2.0
Sulfur (S), % 0 to 0.15
0 to 0.030