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C17300 Copper vs. S31727 Stainless Steel

C17300 copper belongs to the copper alloys classification, while S31727 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C17300 copper and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 3.0 to 23
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
78
Shear Strength, MPa 320 to 790
430
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
630
Tensile Strength: Yield (Proof), MPa 160 to 1200
270

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 270
1010
Melting Completion (Liquidus), °C 980
1440
Melting Onset (Solidus), °C 870
1390
Specific Heat Capacity, J/kg-K 380
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 9.4
4.7
Embodied Energy, MJ/kg 150
64
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
200
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
190
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 16 to 44
22
Strength to Weight: Bending, points 16 to 31
20
Thermal Shock Resistance, points 17 to 48
14

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
17.5 to 19
Copper (Cu), % 95.5 to 97.8
2.8 to 4.0
Iron (Fe), % 0 to 0.4
53.7 to 61.3
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0.2 to 0.6
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0