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AWS E318 vs. Grade CW2M Nickel

AWS E318 belongs to the iron alloys classification, while grade CW2M nickel belongs to the nickel alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E318 and the bottom bar is grade CW2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 29
23
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
83
Tensile Strength: Ultimate (UTS), MPa 620
560

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Melting Completion (Liquidus), °C 1440
1520
Melting Onset (Solidus), °C 1400
1460
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 23
70
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 4.4
12
Embodied Energy, MJ/kg 62
170
Embodied Water, L/kg 160
290

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
17
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 17 to 20
15 to 17.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 57.6 to 69.5
0 to 2.0
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
15 to 17.5
Nickel (Ni), % 11 to 14
60.1 to 70
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0 to 1.0