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Grade 24 Titanium vs. AISI 308L Stainless Steel

Grade 24 titanium belongs to the titanium alloys classification, while AISI 308L stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is AISI 308L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 550
180
Poisson's Ratio 0.32
0.28
Reduction in Area, % 28
46
Shear Modulus, GPa 40
78
Shear Strength, MPa 610
380
Tensile Strength: Ultimate (UTS), MPa 1010
580
Tensile Strength: Yield (Proof), MPa 940
230

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 340
1010
Melting Completion (Liquidus), °C 1610
1420
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
15
Thermal Expansion, µm/m-K 9.6
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.6

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 43
3.2
Embodied Energy, MJ/kg 710
45
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 63
21
Strength to Weight: Bending, points 50
20
Thermal Diffusivity, mm2/s 2.9
4.1
Thermal Shock Resistance, points 72
13

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0
19.5 to 22
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
63.8 to 70.5
Manganese (Mn), % 0
1.0 to 2.5
Nickel (Ni), % 0
9.0 to 11
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.25 to 0.6
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