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Grade 24 Titanium vs. EN 1.4959 Stainless Steel

Grade 24 titanium belongs to the titanium alloys classification, while EN 1.4959 stainless steel belongs to the iron alloys. There are 29 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 EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 550
170
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Shear Strength, MPa 610
430
Tensile Strength: Ultimate (UTS), MPa 1010
630
Tensile Strength: Yield (Proof), MPa 940
190

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 340
1090
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1350
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
12
Thermal Expansion, µm/m-K 9.6
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 43
5.4
Embodied Energy, MJ/kg 710
76
Embodied Water, L/kg 310
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 63
22
Strength to Weight: Bending, points 50
20
Thermal Diffusivity, mm2/s 2.9
3.2
Thermal Shock Resistance, points 72
15

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
0.25 to 0.65
Carbon (C), % 0 to 0.080
0.050 to 0.1
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
39.4 to 50.5
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
30 to 34
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 87.5 to 91
0.25 to 0.65
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0