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AWS ENiCrFe-2 vs. AWS ENiCrMo-4

Both AWS ENiCrFe-2 and AWS ENiCrMo-4 are nickel alloys. Both are furnished in the as-welded condition. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is AWS ENiCrFe-2 and the bottom bar is AWS ENiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 28
28
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 74
84
Tensile Strength: Ultimate (UTS), MPa 790
790

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1390
1590
Melting Onset (Solidus), °C 1350
1530
Specific Heat Capacity, J/kg-K 450
410
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 65
70
Density, g/cm3 8.5
9.0
Embodied Carbon, kg CO2/kg material 11
13
Embodied Energy, MJ/kg 160
170
Embodied Water, L/kg 260
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 24
22

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.020
Chromium (Cr), % 13 to 17
14.5 to 16.5
Cobalt (Co), % 0 to 0.12
0 to 2.5
Copper (Cu), % 0 to 0.5
0 to 0.5
Iron (Fe), % 0 to 12
4.0 to 7.0
Manganese (Mn), % 1.0 to 3.5
0 to 1.0
Molybdenum (Mo), % 0.5 to 2.5
15 to 17
Nickel (Ni), % 62 to 85
49.9 to 63.5
Niobium (Nb), % 0.5 to 4.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.2
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5