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Grade 2 Titanium vs. Austenitic Grey Cast Iron

Grade 2 titanium belongs to the titanium alloys classification, while austenitic grey cast iron belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
110 to 210
Elastic (Young's, Tensile) Modulus, GPa 110
180
Poisson's Ratio 0.32
0.29 to 0.3
Shear Modulus, GPa 38
69 to 72
Tensile Strength: Ultimate (UTS), MPa 420
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 420
280 to 350
Melting Completion (Liquidus), °C 1660
1340 to 1400
Melting Onset (Solidus), °C 1610
1290 to 1350
Specific Heat Capacity, J/kg-K 540
470 to 490
Thermal Expansion, µm/m-K 9.0
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 37
14 to 24
Density, g/cm3 4.5
7.7 to 8.1
Embodied Carbon, kg CO2/kg material 31
3.1 to 4.7
Embodied Energy, MJ/kg 510
43 to 65
Embodied Water, L/kg 110
93 to 120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23 to 25
Strength to Weight: Axial, points 26
5.3 to 8.2
Strength to Weight: Bending, points 28
7.9 to 11
Thermal Shock Resistance, points 32
4.5 to 6.5