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C17500 Copper vs. S41050 Stainless Steel

C17500 copper belongs to the copper alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C17500 copper and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 6.0 to 30
25
Fatigue Strength, MPa 170 to 310
160
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 38 to 99
77
Shear Modulus, GPa 45
76
Shear Strength, MPa 200 to 520
300
Tensile Strength: Ultimate (UTS), MPa 310 to 860
470
Tensile Strength: Yield (Proof), MPa 170 to 760
230

Thermal Properties

Latent Heat of Fusion, J/g 220
270
Maximum Temperature: Mechanical, °C 220
720
Melting Completion (Liquidus), °C 1060
1440
Melting Onset (Solidus), °C 1020
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 200
27
Thermal Expansion, µm/m-K 18
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 53
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 24 to 54
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 60
7.0
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 4.7
1.9
Embodied Energy, MJ/kg 73
27
Embodied Water, L/kg 320
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
98
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 2390
140
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.7 to 27
17
Strength to Weight: Bending, points 11 to 23
17
Thermal Diffusivity, mm2/s 59
7.2
Thermal Shock Resistance, points 11 to 29
17

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 0.4 to 0.7
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Cobalt (Co), % 2.4 to 2.7
0
Copper (Cu), % 95.6 to 97.2
0
Iron (Fe), % 0 to 0.1
84.2 to 88.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0