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C72700 Copper-nickel vs. Grade 300 Maraging Steel

C72700 copper-nickel belongs to the copper alloys classification, while grade 300 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 C72700 copper-nickel and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 4.0 to 36
6.5 to 18
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 44
75
Shear Strength, MPa 310 to 620
640 to 1190
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
1030 to 2030
Tensile Strength: Yield (Proof), MPa 580 to 1060
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Melting Completion (Liquidus), °C 1100
1480
Melting Onset (Solidus), °C 930
1430
Specific Heat Capacity, J/kg-K 380
450
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
34
Density, g/cm3 8.8
8.2
Embodied Carbon, kg CO2/kg material 4.0
5.1
Embodied Energy, MJ/kg 62
68
Embodied Water, L/kg 350
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
130 to 170
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 14 to 34
35 to 68
Strength to Weight: Bending, points 15 to 26
28 to 43
Thermal Shock Resistance, points 16 to 38
31 to 62

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
8.5 to 9.5
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
65 to 68.4
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 8.5 to 9.5
18 to 19
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.5 to 6.5
0
Titanium (Ti), % 0
0.5 to 0.8
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.3
0