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Grade 20 Titanium vs. S35315 Stainless Steel

Grade 20 titanium belongs to the titanium alloys classification, while S35315 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is S35315 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 5.7 to 17
46
Fatigue Strength, MPa 550 to 630
280
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 47
78
Shear Strength, MPa 560 to 740
520
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
740
Tensile Strength: Yield (Proof), MPa 850 to 1190
300

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 370
1100
Melting Completion (Liquidus), °C 1660
1370
Melting Onset (Solidus), °C 1600
1330
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.6
16

Otherwise Unclassified Properties

Density, g/cm3 5.0
7.9
Embodied Carbon, kg CO2/kg material 52
5.7
Embodied Energy, MJ/kg 860
81
Embodied Water, L/kg 350
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
270
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 50 to 70
26
Strength to Weight: Bending, points 41 to 52
23
Thermal Shock Resistance, points 55 to 77
17

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.1
Chromium (Cr), % 5.5 to 6.5
24 to 26
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
33.6 to 40.6
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
34 to 36
Nitrogen (N), % 0 to 0.030
0.12 to 0.18
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
1.2 to 2.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0