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R56401 Titanium vs. Nickel 684

R56401 titanium belongs to the titanium alloys classification, while nickel 684 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R56401 titanium and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.1
11
Fatigue Strength, MPa 480
390
Poisson's Ratio 0.32
0.29
Reduction in Area, % 17
17
Shear Modulus, GPa 40
76
Shear Strength, MPa 560
710
Tensile Strength: Ultimate (UTS), MPa 940
1190
Tensile Strength: Yield (Proof), MPa 850
800

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Maximum Temperature: Mechanical, °C 340
1000
Melting Completion (Liquidus), °C 1610
1370
Melting Onset (Solidus), °C 1560
1320
Specific Heat Capacity, J/kg-K 560
470
Thermal Expansion, µm/m-K 9.6
13

Otherwise Unclassified Properties

Base Metal Price, % relative 36
75
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 38
10
Embodied Energy, MJ/kg 610
140
Embodied Water, L/kg 200
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
120
Resilience: Unit (Modulus of Resilience), kJ/m3 3440
1610
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 59
40
Strength to Weight: Bending, points 48
30
Thermal Shock Resistance, points 67
34

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
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 0.012
0
Iron (Fe), % 0 to 0.25
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 0.050
0
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 88.5 to 91
2.5 to 3.3
Vanadium (V), % 3.5 to 4.5
0