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AWS ERTi-1 vs. Grade CX2MW Nickel

AWS ERTi-1 belongs to the titanium alloys classification, while grade CX2MW nickel belongs to the nickel alloys.

For each property being compared, the top bar is AWS ERTi-1 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, % 24
34
Fatigue Strength, MPa 120
260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
84
Tensile Strength: Ultimate (UTS), MPa 240
620
Tensile Strength: Yield (Proof), MPa 170
350

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
980
Melting Completion (Liquidus), °C 1670
1550
Melting Onset (Solidus), °C 1620
1490
Specific Heat Capacity, J/kg-K 540
430
Thermal Conductivity, W/m-K 21
10
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 37
65
Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 31
12
Embodied Energy, MJ/kg 510
170
Embodied Water, L/kg 110
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 8.7
2.7
Thermal Shock Resistance, points 19
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 0
20 to 22.5
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
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 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 99.773 to 99.97
0
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35