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EN 1.4587 Stainless Steel vs. C72200 Copper-nickel

EN 1.4587 stainless steel belongs to the iron alloys classification, while C72200 copper-nickel belongs to the copper alloys. They have a modest 21% 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 (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4587 stainless steel and the bottom bar is C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
48
Tensile Strength: Ultimate (UTS), MPa 540
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 310
220
Maximum Temperature: Mechanical, °C 1100
230
Melting Completion (Liquidus), °C 1420
1180
Melting Onset (Solidus), °C 1370
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 17
34
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 6.3
3.9
Embodied Energy, MJ/kg 87
59
Embodied Water, L/kg 230
300

Common Calculations

Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18
11 to 18
Strength to Weight: Bending, points 18
12 to 17
Thermal Diffusivity, mm2/s 4.5
9.6
Thermal Shock Resistance, points 13
12 to 20

Alloy Composition


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Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24 to 26
0.3 to 0.7
Copper (Cu), % 2.0 to 3.0
78.1 to 84.2
Iron (Fe), % 32.7 to 41.9
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 28 to 30
15 to 18
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.2