MakeItFrom.com
Menu (ESC)

Grade 15 Titanium vs. SAE-AISI 8660 Steel

Grade 15 titanium belongs to the titanium alloys classification, while SAE-AISI 8660 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 SAE-AISI 8660 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
12
Fatigue Strength, MPa 290
340
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Shear Strength, MPa 340
390
Tensile Strength: Ultimate (UTS), MPa 540
660
Tensile Strength: Yield (Proof), MPa 430
550

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
410
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
39
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.6
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 32
1.5
Embodied Energy, MJ/kg 520
20
Embodied Water, L/kg 210
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
73
Resilience: Unit (Modulus of Resilience), kJ/m3 870
800
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 33
23
Strength to Weight: Bending, points 33
21
Thermal Diffusivity, mm2/s 8.4
10
Thermal Shock Resistance, points 41
19

Alloy Composition

Carbon (C), % 0 to 0.080
0.56 to 0.64
Chromium (Cr), % 0
0.4 to 0.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
96.4 to 97.6
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0.4 to 0.6
0.4 to 0.7
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.035
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 98.2 to 99.56
0
Residuals, % 0 to 0.4
0