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Grade 9 Titanium vs. S66286 Stainless Steel

Grade 9 titanium belongs to the titanium alloys classification, while S66286 stainless 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 9 titanium and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11 to 17
17 to 40
Fatigue Strength, MPa 330 to 480
240 to 410
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
75
Shear Strength, MPa 430 to 580
420 to 630
Tensile Strength: Ultimate (UTS), MPa 700 to 960
620 to 1020
Tensile Strength: Yield (Proof), MPa 540 to 830
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 330
920
Melting Completion (Liquidus), °C 1640
1430
Melting Onset (Solidus), °C 1590
1370
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 8.1
15
Thermal Expansion, µm/m-K 9.1
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
26
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 36
6.0
Embodied Energy, MJ/kg 580
87
Embodied Water, L/kg 150
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 1380 to 3220
190 to 1150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 43 to 60
22 to 36
Strength to Weight: Bending, points 39 to 48
20 to 28
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 52 to 71
13 to 22

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0
13.5 to 16
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
49.1 to 59.5
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 92.6 to 95.5
1.9 to 2.4
Vanadium (V), % 2.0 to 3.0
0.1 to 0.5
Residuals, % 0 to 0.4
0

Comparable Variants