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Grade 20 Titanium vs. S20432 Stainless Steel

Grade 20 titanium belongs to the titanium alloys classification, while S20432 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 S20432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 5.7 to 17
45
Fatigue Strength, MPa 550 to 630
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 47
76
Shear Strength, MPa 560 to 740
400
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
580
Tensile Strength: Yield (Proof), MPa 850 to 1190
230

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 370
900
Melting Completion (Liquidus), °C 1660
1410
Melting Onset (Solidus), °C 1600
1370
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.6
17

Otherwise Unclassified Properties

Density, g/cm3 5.0
7.8
Embodied Carbon, kg CO2/kg material 52
2.7
Embodied Energy, MJ/kg 860
38
Embodied Water, L/kg 350
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
210
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 50 to 70
21
Strength to Weight: Bending, points 41 to 52
20
Thermal Shock Resistance, points 55 to 77
13

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 5.5 to 6.5
17 to 18
Copper (Cu), % 0
2.0 to 3.0
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
66.7 to 74
Manganese (Mn), % 0
3.0 to 5.0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0 to 0.030
0.050 to 0.2
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
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