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Nickel 625 vs. AWS ERTi-7

Nickel 625 belongs to the nickel alloys classification, while AWS ERTi-7 belongs to the titanium alloys. There are 28 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 nickel 625 and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 33 to 34
20
Fatigue Strength, MPa 240 to 320
190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 790 to 910
340
Tensile Strength: Yield (Proof), MPa 320 to 450
280

Thermal Properties

Latent Heat of Fusion, J/g 330
420
Maximum Temperature: Mechanical, °C 980
320
Melting Completion (Liquidus), °C 1350
1670
Melting Onset (Solidus), °C 1290
1620
Specific Heat Capacity, J/kg-K 440
540
Thermal Conductivity, W/m-K 11
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.6
4.5
Embodied Carbon, kg CO2/kg material 14
47
Embodied Energy, MJ/kg 190
800
Embodied Water, L/kg 290
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
64
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 26 to 29
21
Strength to Weight: Bending, points 22 to 24
24
Thermal Diffusivity, mm2/s 2.9
8.8
Thermal Shock Resistance, points 22 to 25
26

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 23
0
Cobalt (Co), % 0 to 1.0
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), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
0
Niobium (Nb), % 3.2 to 4.2
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), % 0 to 0.4
99.417 to 99.8