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C12600 Copper vs. SAE-AISI 4340M Steel

C12600 copper belongs to the copper alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 29 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 C12600 copper and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 56
6.0
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 56
72
Shear Strength, MPa 190
1360
Tensile Strength: Ultimate (UTS), MPa 270
2340
Tensile Strength: Yield (Proof), MPa 69
1240

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
430
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 1030
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 130
38
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 29
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.9
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.9
Embodied Energy, MJ/kg 41
26
Embodied Water, L/kg 310
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 21
4120
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.2
84
Strength to Weight: Bending, points 10
51
Thermal Diffusivity, mm2/s 39
10
Thermal Shock Resistance, points 9.5
70

Alloy Composition

Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 1.0
Copper (Cu), % 99.5 to 99.8
0
Iron (Fe), % 0
93.3 to 94.8
Manganese (Mn), % 0
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0
1.7 to 2.0
Phosphorus (P), % 0.2 to 0.4
0 to 0.012
Silicon (Si), % 0
1.5 to 1.8
Sulfur (S), % 0
0 to 0.012
Vanadium (V), % 0
0.050 to 0.1