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Grade 17 Titanium vs. S21603 Stainless Steel

Grade 17 titanium belongs to the titanium alloys classification, while S21603 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 17 titanium and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 27
45
Fatigue Strength, MPa 160
360
Poisson's Ratio 0.32
0.28
Reduction in Area, % 34
57
Shear Modulus, GPa 38
79
Shear Strength, MPa 180
490
Tensile Strength: Ultimate (UTS), MPa 270
690
Tensile Strength: Yield (Proof), MPa 210
390

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
990
Melting Completion (Liquidus), °C 1660
1420
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
480
Thermal Expansion, µm/m-K 8.7
17

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 36
3.6
Embodied Energy, MJ/kg 600
50
Embodied Water, L/kg 230
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68
270
Resilience: Unit (Modulus of Resilience), kJ/m3 220
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
57.6 to 67.8
Manganese (Mn), % 0
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0 to 0.030
0.25 to 0.5
Oxygen (O), % 0 to 0.18
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.015 to 99.96
0
Residuals, % 0 to 0.4
0