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C72500 Copper-nickel vs. S30452 Stainless Steel

C72500 copper-nickel belongs to the copper alloys classification, while S30452 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 C72500 copper-nickel and the bottom bar is S30452 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 75 to 100
88
Shear Modulus, GPa 45
77
Tensile Strength: Ultimate (UTS), MPa 420 to 780
660

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 210
960
Melting Completion (Liquidus), °C 1130
1420
Melting Onset (Solidus), °C 1060
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 54
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 35
15
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.0
Embodied Energy, MJ/kg 55
43
Embodied Water, L/kg 320
150

Common Calculations

Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 24
23
Strength to Weight: Bending, points 14 to 21
22
Thermal Diffusivity, mm2/s 16
4.2
Thermal Shock Resistance, points 14 to 27
15

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 85.2 to 89.7
0
Iron (Fe), % 0 to 0.6
66.3 to 73.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.2
0 to 2.0
Nickel (Ni), % 8.5 to 10.5
8.0 to 10.5
Nitrogen (N), % 0
0.16 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.8
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.2
0