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AWS E630 vs. Grade CW6M Nickel

AWS E630 belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. They have a modest 24% 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 E630 and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 8.0
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
84
Tensile Strength: Ultimate (UTS), MPa 1040
560

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1430
1530
Melting Onset (Solidus), °C 1380
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
65
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.8
13
Embodied Energy, MJ/kg 40
170
Embodied Water, L/kg 140
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 37
18
Strength to Weight: Bending, points 29
17
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 16 to 16.8
17 to 20
Copper (Cu), % 3.3 to 4.0
0
Iron (Fe), % 71.6 to 75.9
0 to 3.0
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
17 to 20
Nickel (Ni), % 4.5 to 5.0
54.9 to 66
Niobium (Nb), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030