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Austenitic Nodular Cast Iron vs. Grade 33 Titanium

Austenitic nodular cast iron belongs to the iron alloys classification, while grade 33 titanium belongs to the titanium alloys. There are 23 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 austenitic nodular cast iron and the bottom bar is grade 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180 to 190
110
Elongation at Break, % 6.8 to 34
23
Poisson's Ratio 0.29 to 0.3
0.32
Shear Modulus, GPa 70 to 72
41
Tensile Strength: Ultimate (UTS), MPa 430 to 500
390
Tensile Strength: Yield (Proof), MPa 190 to 240
350

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
420
Melting Completion (Liquidus), °C 1340 to 1400
1660
Melting Onset (Solidus), °C 1300 to 1360
1610
Specific Heat Capacity, J/kg-K 470 to 490
540
Thermal Expansion, µm/m-K 13 to 14
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 16 to 25
55
Density, g/cm3 7.7 to 8.0
4.5
Embodied Carbon, kg CO2/kg material 3.5 to 4.9
33
Embodied Energy, MJ/kg 48 to 68
530
Embodied Water, L/kg 91 to 120
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 140
86
Resilience: Unit (Modulus of Resilience), kJ/m3 98 to 160
590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24 to 25
35
Strength to Weight: Axial, points 15 to 18
24
Strength to Weight: Bending, points 16 to 18
26
Thermal Shock Resistance, points 12 to 15
30