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Grey Cast Iron vs. EN 1.4301 Stainless Steel

Both grey cast iron and EN 1.4301 stainless steel are iron alloys. They have 72% 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 1.4301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
14 to 46
Fatigue Strength, MPa 69 to 170
200 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
77
Shear Strength, MPa 180 to 610
430 to 550
Tensile Strength: Ultimate (UTS), MPa 160 to 450
610 to 900
Tensile Strength: Yield (Proof), MPa 98 to 290
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1180
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.0
Embodied Energy, MJ/kg 21
43
Embodied Water, L/kg 44
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
110 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
120 to 820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 5.8 to 17
22 to 32
Strength to Weight: Bending, points 8.7 to 17
20 to 27
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 6.0 to 17
14 to 20

Alloy Composition

Carbon (C), % 3.1 to 3.4
0 to 0.070
Chromium (Cr), % 0
17.5 to 19.5
Iron (Fe), % 92.1 to 93.9
66.8 to 74.5
Manganese (Mn), % 0.5 to 0.7
0 to 2.0
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.9
0 to 0.045
Silicon (Si), % 2.5 to 2.8
0 to 1.0
Sulfur (S), % 0 to 0.15
0 to 0.015

Comparable Variants