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C37700 Brass vs. C77300 Nickel Silver

Both C37700 brass and C77300 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 86% of their average alloy composition in common. There are 22 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 C37700 brass and the bottom bar is C77300 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 39
42
Tensile Strength: Ultimate (UTS), MPa 400
540

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 890
940
Melting Onset (Solidus), °C 880
920
Specific Heat Capacity, J/kg-K 380
390
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 30
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
26
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 45
56
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.1
7.7
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 14
19
Strength to Weight: Bending, points 15
19
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 58 to 61
46 to 50
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 1.5 to 2.5
0 to 0.050
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.25
Silicon (Si), % 0
0.040 to 0.25
Zinc (Zn), % 35.7 to 40.5
37.9 to 45
Residuals, % 0
0 to 0.5