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EN 1.4807 Stainless Steel vs. C71640 Copper-nickel

EN 1.4807 stainless steel belongs to the iron alloys classification, while C71640 copper-nickel belongs to the copper alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4807 stainless steel and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
52
Tensile Strength: Ultimate (UTS), MPa 480
490 to 630
Tensile Strength: Yield (Proof), MPa 250
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Maximum Temperature: Mechanical, °C 1000
260
Melting Completion (Liquidus), °C 1390
1180
Melting Onset (Solidus), °C 1350
1120
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 12
29
Thermal Expansion, µm/m-K 15
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 39
40
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 6.8
5.0
Embodied Energy, MJ/kg 97
73
Embodied Water, L/kg 190
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 160
130 to 750
Stiffness to Weight: Axial, points 13
8.7
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 17
15 to 20
Strength to Weight: Bending, points 17
16 to 18
Thermal Diffusivity, mm2/s 3.2
8.2
Thermal Shock Resistance, points 12
16 to 21

Alloy Composition

Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0
61.7 to 67.8
Iron (Fe), % 36.6 to 46.7
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
1.5 to 2.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
29 to 32
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5