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AWS ERTi-1 vs. Nickel 718

AWS ERTi-1 belongs to the titanium alloys classification, while nickel 718 belongs to the nickel alloys. There are 29 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 AWS ERTi-1 and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 24
12 to 50
Fatigue Strength, MPa 120
460 to 760
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
75
Tensile Strength: Ultimate (UTS), MPa 240
930 to 1530
Tensile Strength: Yield (Proof), MPa 170
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
980
Melting Completion (Liquidus), °C 1670
1340
Melting Onset (Solidus), °C 1620
1260
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
75
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 31
13
Embodied Energy, MJ/kg 510
190
Embodied Water, L/kg 110
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 140
660 to 4560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 15
31 to 51
Strength to Weight: Bending, points 19
25 to 35
Thermal Diffusivity, mm2/s 8.7
3.0
Thermal Shock Resistance, points 19
27 to 44

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
11.1 to 24.6
Manganese (Mn), % 0
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 0
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.773 to 99.97
0.65 to 1.2