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C18200 Copper vs. S41050 Stainless Steel

C18200 copper belongs to the copper alloys classification, while S41050 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 C18200 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, % 11 to 40
25
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 65 to 82
77
Shear Modulus, GPa 44
76
Shear Strength, MPa 210 to 320
300
Tensile Strength: Ultimate (UTS), MPa 310 to 530
470
Tensile Strength: Yield (Proof), MPa 97 to 450
230

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Maximum Temperature: Mechanical, °C 200
720
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 1070
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
27
Thermal Expansion, µm/m-K 18
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 81
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.0
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.9
Embodied Energy, MJ/kg 41
27
Embodied Water, L/kg 310
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 96
98
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
140
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.6 to 16
17
Strength to Weight: Bending, points 11 to 16
17
Thermal Diffusivity, mm2/s 93
7.2
Thermal Shock Resistance, points 11 to 18
17

Alloy Composition

Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0.6 to 1.2
10.5 to 12.5
Copper (Cu), % 98.6 to 99.4
0
Iron (Fe), % 0 to 0.1
84.2 to 88.9
Lead (Pb), % 0 to 0.050
0
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 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030