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Grade 19 Titanium vs. S15500 Stainless Steel

Grade 19 titanium belongs to the titanium alloys classification, while S15500 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 19 titanium and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 5.6 to 17
6.8 to 16
Fatigue Strength, MPa 550 to 620
350 to 650
Poisson's Ratio 0.32
0.28
Reduction in Area, % 22
17 to 40
Shear Modulus, GPa 47
75
Shear Strength, MPa 550 to 750
540 to 870
Tensile Strength: Ultimate (UTS), MPa 890 to 1300
890 to 1490
Tensile Strength: Yield (Proof), MPa 870 to 1170
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 370
820
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1600
1380
Specific Heat Capacity, J/kg-K 520
480
Thermal Conductivity, W/m-K 6.2
17
Thermal Expansion, µm/m-K 9.1
11

Otherwise Unclassified Properties

Base Metal Price, % relative 45
13
Density, g/cm3 5.0
7.8
Embodied Carbon, kg CO2/kg material 47
2.7
Embodied Energy, MJ/kg 760
39
Embodied Water, L/kg 230
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70 to 150
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 3040 to 5530
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 49 to 72
32 to 53
Strength to Weight: Bending, points 41 to 53
26 to 37
Thermal Diffusivity, mm2/s 2.4
4.6
Thermal Shock Resistance, points 57 to 83
30 to 50

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 5.5 to 6.5
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
71.9 to 79.9
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 71.1 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