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Grade 24 Titanium vs. AISI 403 Stainless Steel

Grade 24 titanium belongs to the titanium alloys classification, while AISI 403 stainless steel belongs to the iron alloys. There are 30 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 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11
16 to 25
Fatigue Strength, MPa 550
200 to 340
Poisson's Ratio 0.32
0.28
Reduction in Area, % 28
47 to 50
Shear Modulus, GPa 40
76
Shear Strength, MPa 610
340 to 480
Tensile Strength: Ultimate (UTS), MPa 1010
530 to 780
Tensile Strength: Yield (Proof), MPa 940
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 340
740
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
28
Thermal Expansion, µm/m-K 9.6
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 43
1.9
Embodied Energy, MJ/kg 710
27
Embodied Water, L/kg 310
99

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
210 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 63
19 to 28
Strength to Weight: Bending, points 50
19 to 24
Thermal Diffusivity, mm2/s 2.9
7.6
Thermal Shock Resistance, points 72
20 to 29

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
11.5 to 13
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
84.7 to 88.5
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 0.6
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 0.040
Silicon (Si), % 0
0 to 0.5
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