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Grade 1 Titanium vs. Nickel 684

Grade 1 titanium belongs to the titanium alloys classification, while nickel 684 belongs to the nickel alloys. There are 28 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 1 titanium and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
310
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 28
11
Fatigue Strength, MPa 170
390
Poisson's Ratio 0.32
0.29
Reduction in Area, % 36
17
Shear Modulus, GPa 39
76
Shear Strength, MPa 200
710
Tensile Strength: Ultimate (UTS), MPa 310
1190
Tensile Strength: Yield (Proof), MPa 220
800

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Maximum Temperature: Mechanical, °C 320
1000
Melting Completion (Liquidus), °C 1660
1370
Melting Onset (Solidus), °C 1610
1320
Specific Heat Capacity, J/kg-K 540
470
Thermal Expansion, µm/m-K 8.8
13

Otherwise Unclassified Properties

Base Metal Price, % relative 37
75
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 31
10
Embodied Energy, MJ/kg 510
140
Embodied Water, L/kg 110
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
120
Resilience: Unit (Modulus of Resilience), kJ/m3 230
1610
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 19
40
Strength to Weight: Bending, points 23
30
Thermal Shock Resistance, points 24
34

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 4.0
Manganese (Mn), % 0
0 to 0.75
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
42.7 to 64
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 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.095 to 100
2.5 to 3.3
Residuals, % 0 to 0.4
0