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Nickel 689 vs. AWS ERTi-7

Nickel 689 belongs to the nickel alloys classification, while AWS ERTi-7 belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is nickel 689 and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 23
20
Fatigue Strength, MPa 420
190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 1250
340
Tensile Strength: Yield (Proof), MPa 690
280

Thermal Properties

Latent Heat of Fusion, J/g 330
420
Maximum Temperature: Mechanical, °C 990
320
Melting Completion (Liquidus), °C 1440
1670
Melting Onset (Solidus), °C 1390
1620
Specific Heat Capacity, J/kg-K 450
540
Thermal Expansion, µm/m-K 12
8.7

Otherwise Unclassified Properties

Density, g/cm3 8.5
4.5
Embodied Carbon, kg CO2/kg material 11
47
Embodied Energy, MJ/kg 150
800
Embodied Water, L/kg 330
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
64
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 41
21
Strength to Weight: Bending, points 30
24
Thermal Shock Resistance, points 35
26

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.1 to 0.2
0 to 0.030
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 9.0 to 11
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 5.0
0 to 0.12
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 9.0 to 10.5
0
Nickel (Ni), % 48.3 to 60.9
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 2.3 to 2.8
99.417 to 99.8