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EN 1.4588 Stainless Steel vs. C71520 Copper-nickel

EN 1.4588 stainless steel belongs to the iron alloys classification, while C71520 copper-nickel belongs to the copper alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4588 stainless steel and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 34
10 to 45
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
51
Tensile Strength: Ultimate (UTS), MPa 540
370 to 570
Tensile Strength: Yield (Proof), MPa 240
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Maximum Temperature: Mechanical, °C 1100
260
Melting Completion (Liquidus), °C 1450
1170
Melting Onset (Solidus), °C 1410
1120
Specific Heat Capacity, J/kg-K 460
400
Thermal Conductivity, W/m-K 15
32
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 33
40
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 6.2
5.0
Embodied Energy, MJ/kg 84
73
Embodied Water, L/kg 200
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
67 to 680
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18
12 to 18
Strength to Weight: Bending, points 18
13 to 17
Thermal Diffusivity, mm2/s 4.0
8.9
Thermal Shock Resistance, points 11
12 to 19

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.050
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.5 to 1.5
65 to 71.6
Iron (Fe), % 41.2 to 50.4
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
28 to 33
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.035
0 to 0.2
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5