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C81400 Copper vs. S15700 Stainless Steel

C81400 copper belongs to the copper alloys classification, while S15700 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 C81400 copper and the bottom bar is S15700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
1.1 to 29
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 370
1180 to 1890
Tensile Strength: Yield (Proof), MPa 250
500 to 1770

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
870
Melting Completion (Liquidus), °C 1090
1440
Melting Onset (Solidus), °C 1070
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 260
16
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 61
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 33
15
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
17 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 260
640 to 4660
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11
42 to 67
Strength to Weight: Bending, points 13
32 to 43
Thermal Diffusivity, mm2/s 75
4.2
Thermal Shock Resistance, points 13
39 to 63

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0.6 to 1.0
14 to 16
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
69.6 to 76.8
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
6.5 to 7.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0