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C18700 Copper vs. Grade 250 Maraging Steel

C18700 copper belongs to the copper alloys classification, while grade 250 maraging steel belongs to the iron alloys. There are 23 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 C18700 copper and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.0 to 9.6
7.3 to 17
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 43
75
Shear Strength, MPa 170 to 190
600 to 1060
Tensile Strength: Ultimate (UTS), MPa 290 to 330
970 to 1800
Tensile Strength: Yield (Proof), MPa 230 to 250
660 to 1740

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Melting Completion (Liquidus), °C 1080
1480
Melting Onset (Solidus), °C 950
1430
Specific Heat Capacity, J/kg-K 380
450
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 30
32
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 2.6
4.9
Embodied Energy, MJ/kg 41
65
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
130 to 150
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 9.0 to 10
33 to 61
Strength to Weight: Bending, points 11 to 12
26 to 40
Thermal Shock Resistance, points 10 to 12
29 to 54

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0
0 to 0.030
Cobalt (Co), % 0
7.0 to 8.5
Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
66.3 to 71.1
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0
17 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.3 to 0.5
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.5
0