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Grade 24 Titanium vs. AISI 317 Stainless Steel

Grade 24 titanium belongs to the titanium alloys classification, while AISI 317 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 11
35 to 55
Fatigue Strength, MPa 550
250 to 330
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
79
Shear Strength, MPa 610
420 to 470
Tensile Strength: Ultimate (UTS), MPa 1010
580 to 710
Tensile Strength: Yield (Proof), MPa 940
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 340
590
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
15
Thermal Expansion, µm/m-K 9.6
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.6

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 43
4.3
Embodied Energy, MJ/kg 710
59
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
150 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 63
20 to 25
Strength to Weight: Bending, points 50
20 to 22
Thermal Diffusivity, mm2/s 2.9
4.1
Thermal Shock Resistance, points 72
12 to 15

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0
18 to 20
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
58 to 68
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
11 to 15
Nitrogen (N), % 0 to 0.050
0 to 0.1
Oxygen (O), % 0 to 0.2
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), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0