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AWS E630 vs. Grade CW12MW Nickel

AWS E630 belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. They have a modest 28% 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 CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 8.0
4.6
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
85
Tensile Strength: Ultimate (UTS), MPa 1040
560

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1430
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 2.8
13
Embodied Energy, MJ/kg 40
180
Embodied Water, L/kg 140
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 37
17
Strength to Weight: Bending, points 29
17
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.12
Chromium (Cr), % 16 to 16.8
15.5 to 17.5
Copper (Cu), % 3.3 to 4.0
0
Iron (Fe), % 71.6 to 75.9
4.5 to 7.5
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
16 to 18
Nickel (Ni), % 4.5 to 5.0
49.2 to 60.1
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
Tungsten (W), % 0
3.8 to 5.3
Vanadium (V), % 0
0.2 to 0.4