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C71500 Copper-nickel vs. EN 1.4959 Stainless Steel

C71500 copper-nickel belongs to the copper alloys classification, while EN 1.4959 stainless steel belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 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 C71500 copper-nickel and the bottom bar is EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
77
Tensile Strength: Ultimate (UTS), MPa 380 to 620
630

Thermal Properties

Latent Heat of Fusion, J/g 230
300
Maximum Temperature: Mechanical, °C 260
1090
Melting Completion (Liquidus), °C 1240
1400
Melting Onset (Solidus), °C 1170
1350
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 28
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 41
31
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 5.1
5.4
Embodied Energy, MJ/kg 74
76
Embodied Water, L/kg 280
200

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 19
22
Strength to Weight: Bending, points 13 to 18
20
Thermal Diffusivity, mm2/s 7.7
3.2
Thermal Shock Resistance, points 12 to 20
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0
0.050 to 0.1
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 63.5 to 70.6
0 to 0.5
Iron (Fe), % 0.4 to 1.0
39.4 to 50.5
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 29 to 33
30 to 34
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0