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Grade 4 Titanium vs. Nickel 625

Grade 4 titanium belongs to the titanium alloys classification, while nickel 625 belongs to the nickel alloys. There are 30 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 4 titanium and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
33 to 34
Fatigue Strength, MPa 340
240 to 320
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
79
Shear Strength, MPa 390
530 to 600
Tensile Strength: Ultimate (UTS), MPa 640
790 to 910
Tensile Strength: Yield (Proof), MPa 530
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
980
Melting Completion (Liquidus), °C 1660
1350
Melting Onset (Solidus), °C 1610
1290
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 19
11
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
80
Density, g/cm3 4.5
8.6
Embodied Carbon, kg CO2/kg material 31
14
Embodied Energy, MJ/kg 500
190
Embodied Water, L/kg 110
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 1330
260 to 490
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 40
26 to 29
Strength to Weight: Bending, points 37
22 to 24
Thermal Diffusivity, mm2/s 7.6
2.9
Thermal Shock Resistance, points 46
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 0
0 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.6 to 100
0 to 0.4
Residuals, % 0 to 0.4
0