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AWS E33-31 vs. C72700 Copper-nickel

AWS E33-31 belongs to the iron alloys classification, while C72700 copper-nickel belongs to the copper alloys. 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 E33-31 and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 29
4.0 to 36
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 81
44
Tensile Strength: Ultimate (UTS), MPa 810
460 to 1070

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1380
1100
Melting Onset (Solidus), °C 1330
930
Specific Heat Capacity, J/kg-K 480
380
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 6.0
4.0
Embodied Energy, MJ/kg 86
62
Embodied Water, L/kg 260
350

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 28
14 to 34
Strength to Weight: Bending, points 24
15 to 26
Thermal Shock Resistance, points 19
16 to 38

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 31 to 35
0
Copper (Cu), % 0.4 to 0.8
82.1 to 86
Iron (Fe), % 24.7 to 34.8
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 2.5 to 4.0
0.050 to 0.3
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 30 to 32
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.9
0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3