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S66286 Stainless Steel vs. Austempered Cast Iron

Both S66286 stainless steel and austempered cast iron are iron alloys. They have 56% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S66286 stainless steel and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 17 to 40
1.1 to 13
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
62 to 69
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
860 to 1800
Tensile Strength: Yield (Proof), MPa 280 to 670
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
42
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
2.9
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 6.0
1.8
Embodied Energy, MJ/kg 87
25
Embodied Water, L/kg 170
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
880 to 3970
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 36
32 to 66
Strength to Weight: Bending, points 20 to 28
27 to 44
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13 to 22
25 to 53

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
3.4 to 3.8
Chromium (Cr), % 13.5 to 16
0 to 0.1
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 49.1 to 59.5
89.6 to 94
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0 to 2.0
0.3 to 0.4
Molybdenum (Mo), % 1.0 to 1.5
0 to 0.3
Nickel (Ni), % 24 to 27
0 to 2.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0 to 1.0
2.3 to 2.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0 to 0.1