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C81400 Copper vs. S30815 Stainless Steel

C81400 copper belongs to the copper alloys classification, while S30815 stainless steel belongs to the iron alloys. There are 29 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 S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 69
82
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 370
680
Tensile Strength: Yield (Proof), MPa 250
350

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1020
Melting Completion (Liquidus), °C 1090
1400
Melting Onset (Solidus), °C 1070
1360
Specific Heat Capacity, J/kg-K 390
490
Thermal Conductivity, W/m-K 260
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 61
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 33
17
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
260
Resilience: Unit (Modulus of Resilience), kJ/m3 260
310
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11
25
Strength to Weight: Bending, points 13
22
Thermal Diffusivity, mm2/s 75
4.0
Thermal Shock Resistance, points 13
15

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0.6 to 1.0
20 to 22
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
62.8 to 68.4
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
1.4 to 2.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0