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Grade 2 Titanium vs. ASTM A732 Cast Steel

Grade 2 titanium belongs to the titanium alloys classification, while ASTM A732 cast steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is ASTM A732 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140 to 440
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
4.0 to 25
Fatigue Strength, MPa 250
230 to 750
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 38
72 to 73
Tensile Strength: Ultimate (UTS), MPa 420
460 to 1470
Tensile Strength: Yield (Proof), MPa 360
310 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 420
250 to 260
Maximum Temperature: Mechanical, °C 320
400 to 430
Melting Completion (Liquidus), °C 1660
1440 to 1460
Melting Onset (Solidus), °C 1610
1400 to 1420
Specific Heat Capacity, J/kg-K 540
470 to 480
Thermal Conductivity, W/m-K 22
39 to 50
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.1 to 7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.2 to 8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.0 to 3.8
Density, g/cm3 4.5
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 31
1.4 to 1.7
Embodied Energy, MJ/kg 510
19 to 24
Embodied Water, L/kg 110
47 to 54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
45 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 600
260 to 4770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
16 to 52
Strength to Weight: Bending, points 28
17 to 37
Thermal Diffusivity, mm2/s 8.9
10 to 14
Thermal Shock Resistance, points 32
14 to 43