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Grade 1 Titanium vs. Nickel 725

Grade 1 titanium belongs to the titanium alloys classification, while nickel 725 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 28
34
Fatigue Strength, MPa 170
260
Poisson's Ratio 0.32
0.29
Reduction in Area, % 36
45
Shear Modulus, GPa 39
78
Shear Strength, MPa 200
580
Tensile Strength: Ultimate (UTS), MPa 310
860
Tensile Strength: Yield (Proof), MPa 220
350

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Maximum Temperature: Mechanical, °C 320
980
Melting Completion (Liquidus), °C 1660
1340
Melting Onset (Solidus), °C 1610
1270
Specific Heat Capacity, J/kg-K 540
440
Thermal Expansion, µm/m-K 8.8
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
75
Density, g/cm3 4.5
8.5
Embodied Carbon, kg CO2/kg material 31
13
Embodied Energy, MJ/kg 510
190
Embodied Water, L/kg 110
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
240
Resilience: Unit (Modulus of Resilience), kJ/m3 230
300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 24
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
19 to 22.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
2.3 to 15.3
Manganese (Mn), % 0
0 to 0.35
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 0
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.095 to 100
1.0 to 1.7
Residuals, % 0 to 0.4
0