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O61 C49300 Brass vs. O61 C71640 Copper-nickel

Both O61 C49300 brass and O61 C71640 copper-nickel are copper alloys. Both are furnished in the O61 (annealed) temper. They have 62% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is O61 C49300 brass and the bottom bar is O61 C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
140
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
52
Tensile Strength: Ultimate (UTS), MPa 440
490
Tensile Strength: Yield (Proof), MPa 280
190

Thermal Properties

Latent Heat of Fusion, J/g 170
240
Maximum Temperature: Mechanical, °C 120
260
Melting Completion (Liquidus), °C 880
1180
Melting Onset (Solidus), °C 840
1120
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 88
29
Thermal Expansion, µm/m-K 20
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 26
40
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 3.0
5.0
Embodied Energy, MJ/kg 50
73
Embodied Water, L/kg 370
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 390
130
Stiffness to Weight: Axial, points 7.2
8.7
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 15
15
Strength to Weight: Bending, points 16
16
Thermal Diffusivity, mm2/s 29
8.2
Thermal Shock Resistance, points 15
16

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Antimony (Sb), % 0 to 0.5
0
Bismuth (Bi), % 0.5 to 2.0
0
Copper (Cu), % 58 to 62
61.7 to 67.8
Iron (Fe), % 0 to 0.1
1.7 to 2.3
Lead (Pb), % 0 to 0.010
0 to 0.050
Manganese (Mn), % 0 to 0.030
1.5 to 2.5
Nickel (Ni), % 0 to 1.5
29 to 32
Phosphorus (P), % 0 to 0.2
0
Selenium (Se), % 0 to 0.2
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 1.0 to 1.8
0
Zinc (Zn), % 30.6 to 40.5
0 to 1.0
Residuals, % 0 to 0.5
0 to 0.5