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S82441 Stainless Steel vs. Grey Cast Iron

Both S82441 stainless steel and grey cast iron are iron alloys. They have 67% 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 S82441 stainless steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 28
9.6
Fatigue Strength, MPa 400
69 to 170
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
69
Shear Strength, MPa 490
180 to 610
Tensile Strength: Ultimate (UTS), MPa 760
160 to 450
Tensile Strength: Yield (Proof), MPa 550
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1380
1180
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
1.9
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.2
1.5
Embodied Energy, MJ/kg 45
21
Embodied Water, L/kg 170
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 740
27 to 240
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
5.8 to 17
Strength to Weight: Bending, points 24
8.7 to 17
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 21
6.0 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
3.1 to 3.4
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 0.1 to 0.8
0
Iron (Fe), % 62.6 to 70.2
92.1 to 93.9
Manganese (Mn), % 2.5 to 4.0
0.5 to 0.7
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 3.0 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0 to 0.9
Silicon (Si), % 0 to 0.7
2.5 to 2.8
Sulfur (S), % 0 to 0.0050
0 to 0.15