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AWS ERTi-5 vs. Grade CX2MW Nickel

AWS ERTi-5 belongs to the titanium alloys classification, while grade CX2MW nickel belongs to the nickel alloys. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is grade CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 10
34
Fatigue Strength, MPa 470
260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
84
Tensile Strength: Ultimate (UTS), MPa 900
620
Tensile Strength: Yield (Proof), MPa 830
350

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 340
980
Melting Completion (Liquidus), °C 1610
1550
Melting Onset (Solidus), °C 1560
1490
Specific Heat Capacity, J/kg-K 560
430
Thermal Conductivity, W/m-K 7.1
10
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
65
Density, g/cm3 4.4
8.9
Embodied Carbon, kg CO2/kg material 38
12
Embodied Energy, MJ/kg 610
170
Embodied Water, L/kg 200
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
180
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 56
19
Strength to Weight: Bending, points 46
18
Thermal Diffusivity, mm2/s 2.9
2.7
Thermal Shock Resistance, points 63
17

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 0
20 to 22.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
2.0 to 6.0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 0
51.3 to 63
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 88.2 to 90.9
0
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 3.5 to 4.5
0 to 0.35