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C17300 Copper vs. S20161 Stainless Steel

C17300 copper belongs to the copper alloys classification, while S20161 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 C17300 copper and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 3.0 to 23
46
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
76
Shear Strength, MPa 320 to 790
690
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
980
Tensile Strength: Yield (Proof), MPa 160 to 1200
390

Thermal Properties

Latent Heat of Fusion, J/g 230
330
Maximum Temperature: Mechanical, °C 270
870
Melting Completion (Liquidus), °C 980
1380
Melting Onset (Solidus), °C 870
1330
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 23
2.9

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.5
Embodied Carbon, kg CO2/kg material 9.4
2.7
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 310
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
360
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
390
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
26
Strength to Weight: Axial, points 16 to 44
36
Strength to Weight: Bending, points 16 to 31
29
Thermal Diffusivity, mm2/s 32
4.0
Thermal Shock Resistance, points 17 to 48
22

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 1.8 to 2.0
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
15 to 18
Copper (Cu), % 95.5 to 97.8
0
Iron (Fe), % 0 to 0.4
65.6 to 73.9
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
4.0 to 6.0
Nickel (Ni), % 0.2 to 0.6
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
3.0 to 4.0
Sulfur (S), % 0
0 to 0.040
Residuals, % 0 to 0.5
0