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Grade 15 Titanium vs. ASTM A285 Carbon Steel

Grade 15 titanium belongs to the titanium alloys classification, while ASTM A285 carbon 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 15 titanium and the bottom bar is ASTM A285 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
30 to 34
Fatigue Strength, MPa 290
150 to 180
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Shear Strength, MPa 340
250 to 290
Tensile Strength: Ultimate (UTS), MPa 540
380 to 450
Tensile Strength: Yield (Proof), MPa 430
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1610
1420 to 1430
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
53
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 32
1.4
Embodied Energy, MJ/kg 520
18
Embodied Water, L/kg 210
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 870
94 to 150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 33
13 to 16
Strength to Weight: Bending, points 33
15 to 17
Thermal Diffusivity, mm2/s 8.4
14
Thermal Shock Resistance, points 41
12 to 14