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C82700 Copper vs. S38100 Stainless Steel

C82700 copper belongs to the copper alloys classification, while S38100 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C82700 copper and the bottom bar is S38100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 1.8
45
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 46
76
Tensile Strength: Ultimate (UTS), MPa 1200
580
Tensile Strength: Yield (Proof), MPa 1020
230

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Maximum Temperature: Mechanical, °C 300
970
Melting Completion (Liquidus), °C 950
1400
Melting Onset (Solidus), °C 860
1350
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 21
2.6

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 12
3.8
Embodied Energy, MJ/kg 180
54
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
210
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
140
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 38
21
Strength to Weight: Bending, points 29
20
Thermal Diffusivity, mm2/s 39
4.0
Thermal Shock Resistance, points 41
13

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.4 to 2.6
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.090
17 to 19
Copper (Cu), % 94.6 to 96.7
0
Iron (Fe), % 0 to 0.25
57.9 to 64
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 1.0 to 1.5
17.5 to 18.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.15
1.5 to 2.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0