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C14300 Copper vs. SAE-AISI 4140 Steel

C14300 copper belongs to the copper alloys classification, while SAE-AISI 4140 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C14300 copper and the bottom bar is SAE-AISI 4140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 2.0 to 42
11 to 26
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Shear Strength, MPa 150 to 260
410 to 660
Tensile Strength: Ultimate (UTS), MPa 220 to 460
690 to 1080
Tensile Strength: Yield (Proof), MPa 76 to 430
590 to 990

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 220
420
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 1050
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 380
43
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 96
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 96
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.4
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 41
20
Embodied Water, L/kg 310
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 72
74 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 810
920 to 2590
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.8 to 14
25 to 38
Strength to Weight: Bending, points 9.1 to 15
22 to 30
Thermal Diffusivity, mm2/s 110
12
Thermal Shock Resistance, points 7.8 to 16
20 to 32

Alloy Composition

Cadmium (Cd), % 0.050 to 0.15
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 99.9 to 99.95
0
Iron (Fe), % 0
96.8 to 97.8
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040