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C18400 Copper vs. SAE-AISI 5155 Steel

C18400 copper belongs to the copper alloys classification, while SAE-AISI 5155 steel belongs to the iron alloys. There are 29 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 C18400 copper and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 13 to 50
21
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 190 to 310
390
Tensile Strength: Ultimate (UTS), MPa 270 to 490
620
Tensile Strength: Yield (Proof), MPa 110 to 480
380

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
420
Melting Completion (Liquidus), °C 1080
1450
Melting Onset (Solidus), °C 1070
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 320
49
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 81
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.1
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 41
19
Embodied Water, L/kg 310
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 980
380
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.5 to 15
22
Strength to Weight: Bending, points 10 to 16
21
Thermal Diffusivity, mm2/s 94
13
Thermal Shock Resistance, points 9.6 to 17
20

Alloy Composition

Arsenic (As), % 0 to 0.0050
0
Calcium (Ca), % 0 to 0.0050
0
Carbon (C), % 0
0.51 to 0.59
Chromium (Cr), % 0.4 to 1.2
0.7 to 0.9
Copper (Cu), % 97.2 to 99.6
0
Iron (Fe), % 0 to 0.15
97.2 to 97.9
Lithium (Li), % 0 to 0.050
0
Manganese (Mn), % 0
0.7 to 0.9
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 0.1
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.7
0
Residuals, % 0 to 0.5
0