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C70260 Copper vs. S31727 Stainless Steel

C70260 copper belongs to the copper alloys classification, while S31727 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C70260 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, % 9.5 to 19
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
78
Shear Strength, MPa 320 to 450
430
Tensile Strength: Ultimate (UTS), MPa 520 to 760
630
Tensile Strength: Yield (Proof), MPa 410 to 650
270

Thermal Properties

Latent Heat of Fusion, J/g 220
290
Maximum Temperature: Mechanical, °C 200
1010
Melting Completion (Liquidus), °C 1060
1440
Melting Onset (Solidus), °C 1040
1390
Specific Heat Capacity, J/kg-K 390
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.7
4.7
Embodied Energy, MJ/kg 43
64
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 46 to 140
200
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 1810
190
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 16 to 24
22
Strength to Weight: Bending, points 16 to 21
20
Thermal Shock Resistance, points 18 to 27
14

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 19
Copper (Cu), % 95.8 to 98.8
2.8 to 4.0
Iron (Fe), % 0
53.7 to 61.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 1.0 to 3.0
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0.2 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0