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C71500 Copper-nickel vs. S44700 Stainless Steel

C71500 copper-nickel belongs to the copper alloys classification, while S44700 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
210
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 52
82
Tensile Strength: Ultimate (UTS), MPa 380 to 620
600

Thermal Properties

Latent Heat of Fusion, J/g 230
300
Maximum Temperature: Mechanical, °C 260
1100
Melting Completion (Liquidus), °C 1240
1460
Melting Onset (Solidus), °C 1170
1410
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 41
18
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
3.6
Embodied Energy, MJ/kg 74
49
Embodied Water, L/kg 280
180

Common Calculations

Stiffness to Weight: Axial, points 8.6
15
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 19
21
Strength to Weight: Bending, points 13 to 18
20
Thermal Shock Resistance, points 12 to 20
19

Alloy Composition

Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 63.5 to 70.6
0 to 0.15
Iron (Fe), % 0.4 to 1.0
64.9 to 68.5
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 29 to 33
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0