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Grade 20 Titanium vs. S41425 Stainless Steel

Grade 20 titanium belongs to the titanium alloys classification, while S41425 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 5.7 to 17
17
Fatigue Strength, MPa 550 to 630
450
Poisson's Ratio 0.32
0.28
Reduction in Area, % 23
51
Shear Modulus, GPa 47
77
Shear Strength, MPa 560 to 740
570
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
920
Tensile Strength: Yield (Proof), MPa 850 to 1190
750

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 370
810
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1600
1410
Specific Heat Capacity, J/kg-K 520
470
Thermal Expansion, µm/m-K 9.6
10

Otherwise Unclassified Properties

Density, g/cm3 5.0
7.9
Embodied Carbon, kg CO2/kg material 52
2.9
Embodied Energy, MJ/kg 860
40
Embodied Water, L/kg 350
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
150
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
1420
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 50 to 70
33
Strength to Weight: Bending, points 41 to 52
27
Thermal Shock Resistance, points 55 to 77
33

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.050
Chromium (Cr), % 5.5 to 6.5
12 to 15
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
74 to 81.9
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
1.5 to 2.0
Nickel (Ni), % 0
4.0 to 7.0
Nitrogen (N), % 0 to 0.030
0.060 to 0.12
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
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

Comparable Variants