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C72150 Copper-nickel vs. S17700 Stainless Steel

C72150 copper-nickel belongs to the copper alloys classification, while S17700 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C72150 copper-nickel and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 99
180 to 430
Elastic (Young's, Tensile) Modulus, GPa 150
200
Elongation at Break, % 29
1.0 to 23
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 55
76
Shear Strength, MPa 320
740 to 940
Tensile Strength: Ultimate (UTS), MPa 490
1180 to 1650
Tensile Strength: Yield (Proof), MPa 210
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 600
890
Melting Completion (Liquidus), °C 1210
1440
Melting Onset (Solidus), °C 1250
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 45
13
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 6.1
2.8
Embodied Energy, MJ/kg 88
40
Embodied Water, L/kg 270
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 150
460 to 3750
Stiffness to Weight: Axial, points 9.1
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 15
42 to 59
Strength to Weight: Bending, points 15
32 to 40
Thermal Diffusivity, mm2/s 6.0
4.1
Thermal Shock Resistance, points 18
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.1
0 to 0.090
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 52.5 to 57
0
Iron (Fe), % 0 to 0.1
70.5 to 76.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Nickel (Ni), % 43 to 46
6.5 to 7.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.5
0