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Annealed Grade 5 Titanium vs. Annealed S17700 Stainless Steel

Annealed grade 5 titanium belongs to the titanium alloys classification, while annealed S17700 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is annealed grade 5 titanium and the bottom bar is annealed S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 11
23
Fatigue Strength, MPa 530
290
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Shear Strength, MPa 600
750
Tensile Strength: Ultimate (UTS), MPa 1000
1180
Tensile Strength: Yield (Proof), MPa 910
430

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 330
890
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1650
1400
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 6.8
15
Thermal Expansion, µm/m-K 8.9
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 4.4
7.7
Embodied Carbon, kg CO2/kg material 38
2.8
Embodied Energy, MJ/kg 610
40
Embodied Water, L/kg 200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 3980
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 62
42
Strength to Weight: Bending, points 50
32
Thermal Diffusivity, mm2/s 2.7
4.1
Thermal Shock Resistance, points 76
39

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0.75 to 1.5
Carbon (C), % 0 to 0.080
0 to 0.090
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
70.5 to 76.8
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
6.5 to 7.8
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 87.4 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Yttrium (Y), % 0 to 0.0050
0
Residuals, % 0 to 0.4
0