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C17300 Copper vs. S32304 Stainless Steel

C17300 copper belongs to the copper alloys classification, while S32304 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C17300 copper and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 3.0 to 23
28
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 45
79
Shear Strength, MPa 320 to 790
440
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
670
Tensile Strength: Yield (Proof), MPa 160 to 1200
460

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 270
1050
Melting Completion (Liquidus), °C 980
1420
Melting Onset (Solidus), °C 870
1380
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 23
2.5

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 9.4
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
170
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
520
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 16 to 44
24
Strength to Weight: Bending, points 16 to 31
22
Thermal Diffusivity, mm2/s 32
4.0
Thermal Shock Resistance, points 17 to 48
18

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 1.8 to 2.0
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21.5 to 24.5
Copper (Cu), % 95.5 to 97.8
0.050 to 0.6
Iron (Fe), % 0 to 0.4
65 to 75.4
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0 to 2.5
Molybdenum (Mo), % 0
0.050 to 0.6
Nickel (Ni), % 0.2 to 0.6
3.0 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0