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AWS ERTi-7 vs. Nickel 80A

AWS ERTi-7 belongs to the titanium alloys classification, while nickel 80A belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is nickel 80A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
22
Fatigue Strength, MPa 190
430
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 340
1040
Tensile Strength: Yield (Proof), MPa 280
710

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Maximum Temperature: Mechanical, °C 320
980
Melting Completion (Liquidus), °C 1670
1360
Melting Onset (Solidus), °C 1620
1310
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
1.6

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 47
9.8
Embodied Energy, MJ/kg 800
140
Embodied Water, L/kg 470
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
210
Resilience: Unit (Modulus of Resilience), kJ/m3 360
1300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 21
35
Strength to Weight: Bending, points 24
27
Thermal Diffusivity, mm2/s 8.8
2.9
Thermal Shock Resistance, points 26
31

Alloy Composition

Aluminum (Al), % 0
0.5 to 1.8
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 0
18 to 21
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
0 to 3.0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
69.4 to 79.7
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.417 to 99.8
1.8 to 2.7