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C68800 Brass vs. Nickel 718

C68800 brass belongs to the copper alloys classification, while nickel 718 belongs to the nickel alloys. There are 29 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 C68800 brass and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 2.0 to 36
12 to 50
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
75
Shear Strength, MPa 380 to 510
660 to 950
Tensile Strength: Ultimate (UTS), MPa 570 to 890
930 to 1530
Tensile Strength: Yield (Proof), MPa 390 to 790
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Maximum Temperature: Mechanical, °C 160
980
Melting Completion (Liquidus), °C 960
1340
Melting Onset (Solidus), °C 950
1260
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 40
11
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 20
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 26
75
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 2.8
13
Embodied Energy, MJ/kg 48
190
Embodied Water, L/kg 350
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 180
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 2860
660 to 4560
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 19 to 30
31 to 51
Strength to Weight: Bending, points 19 to 25
25 to 35
Thermal Diffusivity, mm2/s 12
3.0
Thermal Shock Resistance, points 19 to 30
27 to 44

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0.25 to 0.55
0 to 1.0
Copper (Cu), % 70.8 to 75.5
0 to 0.3
Iron (Fe), % 0 to 0.2
11.1 to 24.6
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 0
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2
Zinc (Zn), % 21.3 to 24.1
0
Residuals, % 0 to 0.5
0