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Grade 24 Titanium vs. S44700 Stainless Steel

Grade 24 titanium belongs to the titanium alloys classification, while S44700 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 24 titanium and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 11
23
Fatigue Strength, MPa 550
300
Poisson's Ratio 0.32
0.27
Reduction in Area, % 28
45
Shear Modulus, GPa 40
82
Shear Strength, MPa 610
380
Tensile Strength: Ultimate (UTS), MPa 1010
600
Tensile Strength: Yield (Proof), MPa 940
450

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 340
1100
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
480
Thermal Expansion, µm/m-K 9.6
11

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 43
3.6
Embodied Energy, MJ/kg 710
49
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 63
21
Strength to Weight: Bending, points 50
20
Thermal Shock Resistance, points 72
19

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0
0 to 0.15
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
64.9 to 68.5
Manganese (Mn), % 0
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0
0 to 0.15
Nitrogen (N), % 0 to 0.050
0 to 0.020
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0