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SAE-AISI M50 Steel vs. C18700 Copper

SAE-AISI M50 steel belongs to the iron alloys classification, while C18700 copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M50 steel and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 75
43
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Melting Completion (Liquidus), °C 1480
1080
Melting Onset (Solidus), °C 1440
950
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 35
380
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
98
Electrical Conductivity: Equal Weight (Specific), % IACS 10
99

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
30
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 5.1
2.6
Embodied Energy, MJ/kg 74
41
Embodied Water, L/kg 83
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 26 to 80
9.0 to 10
Strength to Weight: Bending, points 23 to 49
11 to 12
Thermal Diffusivity, mm2/s 9.7
110
Thermal Shock Resistance, points 21 to 66
10 to 12

Alloy Composition

Carbon (C), % 0.78 to 0.88
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
98 to 99.2
Iron (Fe), % 87 to 90.4
0
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0.15 to 0.45
0
Molybdenum (Mo), % 3.9 to 4.8
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.8 to 1.3
0
Residuals, % 0
0 to 0.5