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C72800 Copper-nickel vs. S44735 Stainless Steel

C72800 copper-nickel belongs to the copper alloys classification, while S44735 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C72800 copper-nickel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 3.9 to 23
21
Poisson's Ratio 0.34
0.27
Rockwell C Hardness 21 to 40
22
Shear Modulus, GPa 44
82
Shear Strength, MPa 330 to 740
390
Tensile Strength: Ultimate (UTS), MPa 520 to 1270
630
Tensile Strength: Yield (Proof), MPa 250 to 1210
460

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 920
1420
Specific Heat Capacity, J/kg-K 380
480
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 38
21
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
4.4
Embodied Energy, MJ/kg 68
61
Embodied Water, L/kg 360
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 99
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 5650
520
Stiffness to Weight: Axial, points 7.4
15
Stiffness to Weight: Bending, points 19
26
Strength to Weight: Axial, points 17 to 40
23
Strength to Weight: Bending, points 16 to 30
21
Thermal Shock Resistance, points 19 to 45
20

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.020
0
Bismuth (Bi), % 0 to 0.0010
0
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 78.3 to 82.8
0
Iron (Fe), % 0 to 0.5
60.7 to 68.4
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.0050 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0 to 1.0
Molybdenum (Mo), % 0
3.6 to 4.2
Nickel (Ni), % 9.5 to 10.5
0 to 1.0
Niobium (Nb), % 0.1 to 0.3
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.0050
0 to 0.040
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0 to 0.0025
0 to 0.030
Tin (Sn), % 7.5 to 8.5
0
Titanium (Ti), % 0 to 0.010
0.2 to 1.0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.3
0