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C71500 Copper-nickel vs. AISI 420 Stainless Steel

C71500 copper-nickel belongs to the copper alloys classification, while AISI 420 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Poisson's Ratio 0.33
0.28
Rockwell B Hardness 40 to 89
84
Shear Modulus, GPa 52
76
Tensile Strength: Ultimate (UTS), MPa 380 to 620
690 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 230
280
Maximum Temperature: Mechanical, °C 260
620
Melting Completion (Liquidus), °C 1240
1510
Melting Onset (Solidus), °C 1170
1450
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 28
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 41
7.5
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 5.1
2.0
Embodied Energy, MJ/kg 74
28
Embodied Water, L/kg 280
100

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 19
25 to 62
Strength to Weight: Bending, points 13 to 18
22 to 41
Thermal Diffusivity, mm2/s 7.7
7.3
Thermal Shock Resistance, points 12 to 20
25 to 62

Alloy Composition

Carbon (C), % 0
0.15 to 0.4
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 63.5 to 70.6
0
Iron (Fe), % 0.4 to 1.0
82.3 to 87.9
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 29 to 33
0 to 0.75
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0