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C71500 Copper-nickel vs. EN 1.4621 Stainless Steel

C71500 copper-nickel belongs to the copper alloys classification, while EN 1.4621 stainless steel belongs to the iron alloys. There are 24 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 EN 1.4621 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 52
78
Tensile Strength: Ultimate (UTS), MPa 380 to 620
500

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 260
970
Melting Completion (Liquidus), °C 1240
1440
Melting Onset (Solidus), °C 1170
1390
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 28
21
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 41
14
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 5.1
2.8
Embodied Energy, MJ/kg 74
41
Embodied Water, L/kg 280
140

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
18
Strength to Weight: Bending, points 13 to 18
18
Thermal Diffusivity, mm2/s 7.7
5.7
Thermal Shock Resistance, points 12 to 20
17

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
20 to 21.5
Copper (Cu), % 63.5 to 70.6
0.1 to 1.0
Iron (Fe), % 0.4 to 1.0
74.4 to 79.7
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 29 to 33
0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0