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S44535 Stainless Steel vs. Ductile Cast Iron

Both S44535 stainless steel and ductile cast iron are iron alloys. They have 77% 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 S44535 stainless steel and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 200
170 to 180
Elongation at Break, % 28
2.1 to 20
Poisson's Ratio 0.27
0.28 to 0.31
Shear Modulus, GPa 78
64 to 70
Shear Strength, MPa 290
420 to 800
Tensile Strength: Ultimate (UTS), MPa 450
460 to 920
Tensile Strength: Yield (Proof), MPa 290
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 1000
290
Melting Completion (Liquidus), °C 1430
1160
Melting Onset (Solidus), °C 1390
1120
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 21
31 to 36
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9
Density, g/cm3 7.7
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 34
21
Embodied Water, L/kg 140
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 200
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 16
17 to 35
Strength to Weight: Bending, points 17
18 to 29
Thermal Diffusivity, mm2/s 5.6
8.9 to 10
Thermal Shock Resistance, points 15
17 to 35

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.030
3.0 to 3.5
Chromium (Cr), % 20 to 24
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 73.2 to 79.6
93.7 to 95.5
Lanthanum (La), % 0.040 to 0.2
0
Manganese (Mn), % 0.3 to 0.8
0
Phosphorus (P), % 0 to 0.050
0 to 0.080
Silicon (Si), % 0 to 0.5
1.5 to 2.8
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0.030 to 0.2
0