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C70700 Copper-nickel vs. EN 1.7767 Steel

C70700 copper-nickel belongs to the copper alloys classification, while EN 1.7767 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 1.7767 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 39
20
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
74
Shear Strength, MPa 220
420 to 430
Tensile Strength: Ultimate (UTS), MPa 320
670 to 690
Tensile Strength: Yield (Proof), MPa 110
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 220
480
Melting Completion (Liquidus), °C 1120
1470
Melting Onset (Solidus), °C 1060
1430
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 59
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
4.5
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
2.4
Embodied Energy, MJ/kg 52
33
Embodied Water, L/kg 300
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 51
570 to 650
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
24
Strength to Weight: Bending, points 12
22
Thermal Diffusivity, mm2/s 17
11
Thermal Shock Resistance, points 12
19 to 20

Alloy Composition

Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 88.5 to 90.5
0 to 0.25
Iron (Fe), % 0 to 0.050
93.8 to 95.8
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 9.5 to 10.5
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.2 to 0.3
Residuals, % 0 to 0.5
0