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SAE-AISI 4161 Steel vs. C55180 Copper

SAE-AISI 4161 steel belongs to the iron alloys classification, while C55180 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4161 steel and the bottom bar is C55180 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 680
200
Tensile Strength: Yield (Proof), MPa 410
100

Thermal Properties

Latent Heat of Fusion, J/g 250
200
Maximum Temperature: Mechanical, °C 420
200
Melting Completion (Liquidus), °C 1460
920
Melting Onset (Solidus), °C 1410
710
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 43
200
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
29
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 1.5
2.5
Embodied Energy, MJ/kg 20
39
Embodied Water, L/kg 50
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
34
Resilience: Unit (Modulus of Resilience), kJ/m3 460
48
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 24
6.4
Strength to Weight: Bending, points 22
8.8
Thermal Diffusivity, mm2/s 12
56
Thermal Shock Resistance, points 22
7.9

Alloy Composition

Carbon (C), % 0.56 to 0.64
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
94.7 to 95.2
Iron (Fe), % 96.7 to 97.6
0
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.25 to 0.35
0
Phosphorus (P), % 0 to 0.035
4.8 to 5.2
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.15