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AWS ERNiCrCoMo-1 vs. AWS ERNiCrMo-3

Both AWS ERNiCrCoMo-1 and AWS ERNiCrMo-3 are nickel alloys. Both are furnished in the as-welded condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is AWS ERNiCrCoMo-1 and the bottom bar is AWS ERNiCrMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
34
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 710
870

Thermal Properties

Latent Heat of Fusion, J/g 330
330
Melting Completion (Liquidus), °C 1420
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 75
80
Density, g/cm3 8.5
8.6
Embodied Carbon, kg CO2/kg material 10
14
Embodied Energy, MJ/kg 140
190
Embodied Water, L/kg 350
290

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 23
28
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 3.5
2.8
Thermal Shock Resistance, points 19
25

Alloy Composition


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Aluminum (Al), % 0.8 to 1.5
0 to 0.4
Carbon (C), % 0.050 to 0.15
0 to 0.010
Chromium (Cr), % 20 to 24
20 to 23
Cobalt (Co), % 10 to 15
0
Copper (Cu), % 0 to 0.5
0 to 0.5
Iron (Fe), % 0 to 3.0
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 8.0 to 10
8.0 to 10
Nickel (Ni), % 42.7 to 61.2
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.6
0 to 0.4
Residuals, % 0 to 0.5
0 to 0.5