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S64512 Stainless Steel vs. Ductile Cast Iron

Both S64512 stainless steel and ductile cast iron are iron alloys. They have 83% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 200
170 to 180
Elongation at Break, % 17
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 76
64 to 70
Shear Strength, MPa 700
420 to 800
Tensile Strength: Ultimate (UTS), MPa 1140
460 to 920
Tensile Strength: Yield (Proof), MPa 890
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 750
290
Melting Completion (Liquidus), °C 1460
1160
Melting Onset (Solidus), °C 1420
1120
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 28
31 to 36
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.9
Density, g/cm3 7.8
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 3.3
1.5
Embodied Energy, MJ/kg 47
21
Embodied Water, L/kg 110
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 25
24 to 26
Strength to Weight: Axial, points 40
17 to 35
Strength to Weight: Bending, points 31
18 to 29
Thermal Diffusivity, mm2/s 7.5
8.9 to 10
Thermal Shock Resistance, points 42
17 to 35

Alloy Composition

Carbon (C), % 0.080 to 0.15
3.0 to 3.5
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 80.6 to 84.7
93.7 to 95.5
Manganese (Mn), % 0.5 to 0.9
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.080
Silicon (Si), % 0 to 0.35
1.5 to 2.8
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0.25 to 0.4
0