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C15900 Copper vs. S38100 Stainless Steel

C15900 copper belongs to the copper alloys classification, while S38100 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C15900 copper and the bottom bar is S38100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 6.5
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 95
84
Shear Modulus, GPa 43
76
Shear Strength, MPa 420
400
Tensile Strength: Ultimate (UTS), MPa 720
580
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Maximum Temperature: Mechanical, °C 200
970
Melting Completion (Liquidus), °C 1080
1400
Melting Onset (Solidus), °C 1030
1350
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 280
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 49
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 30
20
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.8
Embodied Energy, MJ/kg 45
54
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
210
Resilience: Unit (Modulus of Resilience), kJ/m3 260
140
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 23
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 80
4.0
Thermal Shock Resistance, points 26
13

Alloy Composition

Aluminum (Al), % 0.76 to 0.84
0
Carbon (C), % 0.27 to 0.33
0 to 0.080
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 97.5 to 97.9
0
Iron (Fe), % 0 to 0.040
57.9 to 64
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
17.5 to 18.5
Oxygen (O), % 0.4 to 0.54
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.5 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.66 to 0.74
0