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AISI 310S Stainless Steel vs. Grey Cast Iron

Both AISI 310S stainless steel and grey cast iron are iron alloys. They have 54% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 310S stainless steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 34 to 44
9.6
Fatigue Strength, MPa 250 to 280
69 to 170
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
69
Shear Strength, MPa 420 to 470
180 to 610
Tensile Strength: Ultimate (UTS), MPa 600 to 710
160 to 450
Tensile Strength: Yield (Proof), MPa 270 to 350
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1180
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.9
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 4.3
1.5
Embodied Energy, MJ/kg 61
21
Embodied Water, L/kg 190
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
5.8 to 17
Strength to Weight: Bending, points 20 to 22
8.7 to 17
Thermal Diffusivity, mm2/s 4.1
13
Thermal Shock Resistance, points 14 to 16
6.0 to 17

Alloy Composition

Carbon (C), % 0 to 0.080
3.1 to 3.4
Chromium (Cr), % 24 to 26
0
Iron (Fe), % 48.3 to 57
92.1 to 93.9
Manganese (Mn), % 0 to 2.0
0.5 to 0.7
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0 to 0.9
Silicon (Si), % 0 to 1.5
2.5 to 2.8
Sulfur (S), % 0 to 0.030
0 to 0.15