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Annealed Grade 18 Titanium vs. Annealed 200 Maraging Steel

Annealed grade 18 titanium belongs to the titanium alloys classification, while annealed 200 maraging steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is annealed grade 18 titanium and the bottom bar is annealed 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
18
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 40
74
Shear Strength, MPa 440
600
Tensile Strength: Ultimate (UTS), MPa 710
970
Tensile Strength: Yield (Proof), MPa 540
690

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Melting Completion (Liquidus), °C 1640
1460
Melting Onset (Solidus), °C 1590
1420
Specific Heat Capacity, J/kg-K 550
460
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 41
4.5
Embodied Energy, MJ/kg 670
59
Embodied Water, L/kg 270
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
1240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 44
33
Strength to Weight: Bending, points 39
27
Thermal Shock Resistance, points 48
29

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0 to 0.030
Cobalt (Co), % 0
8.0 to 9.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
67.8 to 71.8
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
17 to 19
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 92.5 to 95.5
0.15 to 0.25
Vanadium (V), % 2.0 to 3.0
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.4
0