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Grade 33 Titanium vs. ASTM A588 Steel

Grade 33 titanium belongs to the titanium alloys classification, while ASTM A588 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 33 titanium and the bottom bar is ASTM A588 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
22
Fatigue Strength, MPa 250
270
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Shear Strength, MPa 240
350
Tensile Strength: Ultimate (UTS), MPa 390
550
Tensile Strength: Yield (Proof), MPa 350
390

Thermal Properties

Latent Heat of Fusion, J/g 420
250 to 260
Maximum Temperature: Mechanical, °C 320
410
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410 to 1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
43 to 44
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.3 to 2.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
1.5 to 1.6
Embodied Energy, MJ/kg 530
20 to 22
Embodied Water, L/kg 200
50 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
110
Resilience: Unit (Modulus of Resilience), kJ/m3 590
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 26
19
Thermal Diffusivity, mm2/s 8.7
12
Thermal Shock Resistance, points 30
16