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C82000 Copper vs. S21900 Stainless Steel

C82000 copper belongs to the copper alloys classification, while S21900 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C82000 copper and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 8.0 to 20
50
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 45
78
Tensile Strength: Ultimate (UTS), MPa 350 to 690
710
Tensile Strength: Yield (Proof), MPa 140 to 520
390

Thermal Properties

Latent Heat of Fusion, J/g 220
290
Maximum Temperature: Mechanical, °C 220
980
Melting Completion (Liquidus), °C 1090
1400
Melting Onset (Solidus), °C 970
1350
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 260
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 46
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 60
15
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 5.0
3.0
Embodied Energy, MJ/kg 77
43
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51 to 55
300
Resilience: Unit (Modulus of Resilience), kJ/m3 80 to 1120
380
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11 to 22
26
Strength to Weight: Bending, points 12 to 20
23
Thermal Diffusivity, mm2/s 76
3.8
Thermal Shock Resistance, points 12 to 24
15

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Beryllium (Be), % 0.45 to 0.8
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
19 to 21.5
Cobalt (Co), % 2.2 to 2.7
0
Copper (Cu), % 95.2 to 97.4
0
Iron (Fe), % 0 to 0.1
59.4 to 67.4
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0 to 0.2
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0