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Grade 28 Titanium vs. SAE-AISI 1017 Steel

Grade 28 titanium belongs to the titanium alloys classification, while SAE-AISI 1017 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 28 titanium and the bottom bar is SAE-AISI 1017 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11 to 17
20 to 30
Fatigue Strength, MPa 330 to 480
170 to 270
Poisson's Ratio 0.32
0.29
Reduction in Area, % 22
46 to 56
Shear Modulus, GPa 40
73
Shear Strength, MPa 420 to 590
280 to 290
Tensile Strength: Ultimate (UTS), MPa 690 to 980
420 to 460
Tensile Strength: Yield (Proof), MPa 540 to 810
220 to 390

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 330
400
Melting Completion (Liquidus), °C 1640
1470
Melting Onset (Solidus), °C 1590
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 8.3
53
Thermal Expansion, µm/m-K 9.9
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 37
1.4
Embodied Energy, MJ/kg 600
18
Embodied Water, L/kg 370
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1370 to 3100
130 to 400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 43 to 61
15 to 16
Strength to Weight: Bending, points 39 to 49
16 to 17
Thermal Diffusivity, mm2/s 3.4
14
Thermal Shock Resistance, points 47 to 66
13 to 14

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0.15 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
99.11 to 99.55
Manganese (Mn), % 0
0.3 to 0.6
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.080 to 0.14
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 92.4 to 95.4
0
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0 to 0.4
0