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C96300 Copper-nickel vs. S21640 Stainless Steel

C96300 copper-nickel belongs to the copper alloys classification, while S21640 stainless steel belongs to the iron alloys. There are 29 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 C96300 copper-nickel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
230
Elastic (Young's, Tensile) Modulus, GPa 130
200
Elongation at Break, % 11
46
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 49
78
Tensile Strength: Ultimate (UTS), MPa 580
740
Tensile Strength: Yield (Proof), MPa 430
350

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 240
940
Melting Completion (Liquidus), °C 1200
1430
Melting Onset (Solidus), °C 1150
1380
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 37
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 6.1
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 42
17
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 5.1
3.6
Embodied Energy, MJ/kg 76
51
Embodied Water, L/kg 290
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
280
Resilience: Unit (Modulus of Resilience), kJ/m3 720
300
Stiffness to Weight: Axial, points 8.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 18
27
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 20
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 0
17.5 to 19.5
Copper (Cu), % 72.3 to 80.8
0
Iron (Fe), % 0.5 to 1.5
63 to 74.3
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0.25 to 1.5
3.5 to 6.5
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 18 to 22
4.0 to 6.5
Niobium (Nb), % 0.5 to 1.5
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Residuals, % 0 to 0.5
0