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AWS E385 vs. C71500 Copper-nickel

AWS E385 belongs to the iron alloys classification, while C71500 copper-nickel belongs to the copper alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS E385 and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
52
Tensile Strength: Ultimate (UTS), MPa 580
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Melting Completion (Liquidus), °C 1440
1240
Melting Onset (Solidus), °C 1390
1170
Specific Heat Capacity, J/kg-K 460
400
Thermal Conductivity, W/m-K 14
28
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
41
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 5.8
5.1
Embodied Energy, MJ/kg 79
74
Embodied Water, L/kg 200
280

Common Calculations

Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 20
12 to 19
Strength to Weight: Bending, points 19
13 to 18
Thermal Diffusivity, mm2/s 3.6
7.7
Thermal Shock Resistance, points 15
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 1.2 to 2.0
63.5 to 70.6
Iron (Fe), % 41.8 to 50.1
0.4 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 4.2 to 5.2
0
Nickel (Ni), % 24 to 26
29 to 33
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.9
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5