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C81500 Copper vs. SAE-AISI M4 Steel

C81500 copper belongs to the copper alloys classification, while SAE-AISI M4 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C81500 copper and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
76
Tensile Strength: Ultimate (UTS), MPa 350
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Melting Completion (Liquidus), °C 1090
1610
Melting Onset (Solidus), °C 1080
1560
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 320
25
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 2.6
14
Embodied Energy, MJ/kg 41
210
Embodied Water, L/kg 310
110

Common Calculations

Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 11
26 to 72
Strength to Weight: Bending, points 12
23 to 45
Thermal Diffusivity, mm2/s 91
6.9
Thermal Shock Resistance, points 12
24 to 68

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0
1.3 to 1.4
Chromium (Cr), % 0.4 to 1.5
3.8 to 4.8
Copper (Cu), % 97.4 to 99.6
0 to 0.25
Iron (Fe), % 0 to 0.1
75.9 to 81.4
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.3 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.15
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Tungsten (W), % 0
5.3 to 6.5
Vanadium (V), % 0
3.8 to 4.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0