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C14700 Copper vs. S21603 Stainless Steel

C14700 copper belongs to the copper alloys classification, while S21603 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 C14700 copper and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 9.1 to 35
45
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
79
Shear Strength, MPa 160 to 190
490
Tensile Strength: Ultimate (UTS), MPa 240 to 320
690
Tensile Strength: Yield (Proof), MPa 85 to 250
390

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
990
Melting Completion (Liquidus), °C 1080
1420
Melting Onset (Solidus), °C 1070
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.6
Embodied Energy, MJ/kg 41
50
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 65
270
Resilience: Unit (Modulus of Resilience), kJ/m3 31 to 280
380
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.3 to 10
25
Strength to Weight: Bending, points 9.5 to 12
22
Thermal Shock Resistance, points 8.4 to 12
15

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 99.395 to 99.798
0
Iron (Fe), % 0
57.6 to 67.8
Manganese (Mn), % 0
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0.0020 to 0.0050
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0.2 to 0.5
0 to 0.030
Residuals, % 0 to 0.1
0