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C70700 Copper-nickel vs. EN 1.4887 Stainless Steel

C70700 copper-nickel belongs to the copper alloys classification, while EN 1.4887 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is EN 1.4887 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
170
Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 39
45
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 46
76
Shear Strength, MPa 220
400
Tensile Strength: Ultimate (UTS), MPa 320
580
Tensile Strength: Yield (Proof), MPa 110
300

Thermal Properties

Latent Heat of Fusion, J/g 220
320
Maximum Temperature: Mechanical, °C 220
1100
Melting Completion (Liquidus), °C 1120
1390
Melting Onset (Solidus), °C 1060
1350
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 59
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
39
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 3.4
6.7
Embodied Energy, MJ/kg 52
96
Embodied Water, L/kg 300
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
220
Resilience: Unit (Modulus of Resilience), kJ/m3 51
230
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
20
Strength to Weight: Bending, points 12
19
Thermal Diffusivity, mm2/s 17
3.2
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
34.2 to 45
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 9.5 to 10.5
33 to 37
Niobium (Nb), % 0
1.0 to 1.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.015
Residuals, % 0 to 0.5
0