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C72700 Copper-nickel vs. S44627 Stainless Steel

C72700 copper-nickel belongs to the copper alloys classification, while S44627 stainless steel belongs to the iron alloys. There are 29 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 C72700 copper-nickel and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 4.0 to 36
24
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 44
80
Shear Strength, MPa 310 to 620
310
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
490
Tensile Strength: Yield (Proof), MPa 580 to 1060
300

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1100
1440
Melting Onset (Solidus), °C 930
1400
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 54
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
14
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 4.0
2.9
Embodied Energy, MJ/kg 62
41
Embodied Water, L/kg 350
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
220
Stiffness to Weight: Axial, points 7.4
15
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
18
Strength to Weight: Bending, points 15 to 26
18
Thermal Diffusivity, mm2/s 16
4.6
Thermal Shock Resistance, points 16 to 38
16

Alloy Composition

Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
25 to 27.5
Copper (Cu), % 82.1 to 86
0 to 0.2
Iron (Fe), % 0 to 0.5
69.2 to 74.2
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 8.5 to 9.5
0 to 0.5
Niobium (Nb), % 0 to 0.1
0.050 to 0.2
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0