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AWS ERTi-2 vs. Nickel 908

AWS ERTi-2 belongs to the titanium alloys classification, while nickel 908 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-2 and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180
Elongation at Break, % 20
11
Fatigue Strength, MPa 190
450
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 40
70
Tensile Strength: Ultimate (UTS), MPa 340
1340
Tensile Strength: Yield (Proof), MPa 280
930

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
920
Melting Completion (Liquidus), °C 1670
1430
Melting Onset (Solidus), °C 1620
1380
Specific Heat Capacity, J/kg-K 540
460
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 8.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
50
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 31
9.3
Embodied Energy, MJ/kg 510
140
Embodied Water, L/kg 110
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
140
Resilience: Unit (Modulus of Resilience), kJ/m3 360
2340
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 21
45
Strength to Weight: Bending, points 24
33
Thermal Diffusivity, mm2/s 8.7
2.9
Thermal Shock Resistance, points 27
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
35.6 to 44.6
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 99.667 to 99.92
1.2 to 1.8