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S64512 Stainless Steel vs. Austempered Cast Iron

Both S64512 stainless steel and austempered cast iron are iron alloys. They have 85% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S64512 stainless steel and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
270 to 490
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 17
1.1 to 13
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
62 to 69
Tensile Strength: Ultimate (UTS), MPa 1140
860 to 1800
Tensile Strength: Yield (Proof), MPa 890
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 28
42
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.9
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 3.3
1.8
Embodied Energy, MJ/kg 47
25
Embodied Water, L/kg 110
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
880 to 3970
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
32 to 66
Strength to Weight: Bending, points 31
27 to 44
Thermal Diffusivity, mm2/s 7.5
11
Thermal Shock Resistance, points 42
25 to 53

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 0.080 to 0.15
3.4 to 3.8
Chromium (Cr), % 11 to 12.5
0 to 0.1
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 80.6 to 84.7
89.6 to 94
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0.5 to 0.9
0.3 to 0.4
Molybdenum (Mo), % 1.5 to 2.0
0 to 0.3
Nickel (Ni), % 2.0 to 3.0
0 to 2.0
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0 to 0.35
2.3 to 2.7
Sulfur (S), % 0 to 0.025
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Vanadium (V), % 0.25 to 0.4
0 to 0.1