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C18400 Copper vs. S44535 Stainless Steel

C18400 copper belongs to the copper alloys classification, while S44535 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 C18400 copper and the bottom bar is S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 13 to 50
28
Poisson's Ratio 0.34
0.27
Rockwell B Hardness 16 to 84
77
Shear Modulus, GPa 44
78
Shear Strength, MPa 190 to 310
290
Tensile Strength: Ultimate (UTS), MPa 270 to 490
450
Tensile Strength: Yield (Proof), MPa 110 to 480
290

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
1000
Melting Completion (Liquidus), °C 1080
1430
Melting Onset (Solidus), °C 1070
1390
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
21
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 81
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
11
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.4
Embodied Energy, MJ/kg 41
34
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 980
200
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.5 to 15
16
Strength to Weight: Bending, points 10 to 16
17
Thermal Diffusivity, mm2/s 94
5.6
Thermal Shock Resistance, points 9.6 to 17
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Arsenic (As), % 0 to 0.0050
0
Calcium (Ca), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.4 to 1.2
20 to 24
Copper (Cu), % 97.2 to 99.6
0 to 0.5
Iron (Fe), % 0 to 0.15
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Lithium (Li), % 0 to 0.050
0
Manganese (Mn), % 0
0.3 to 0.8
Phosphorus (P), % 0 to 0.050
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0.030 to 0.2
Zinc (Zn), % 0 to 0.7
0
Residuals, % 0 to 0.5
0