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C21000 Brass vs. C75400 Nickel Silver

Both C21000 brass and C75400 nickel silver are copper alloys. They have 70% of their average alloy composition in common.

For each property being compared, the top bar is C21000 brass and the bottom bar is C75400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 2.9 to 50
2.0 to 43
Poisson's Ratio 0.34
0.32
Rockwell B Hardness 36 to 73
60 to 90
Rockwell Superficial 30T Hardness 44 to 68
27 to 77
Shear Modulus, GPa 43
46
Shear Strength, MPa 180 to 280
250 to 370
Tensile Strength: Ultimate (UTS), MPa 240 to 450
370 to 630
Tensile Strength: Yield (Proof), MPa 69 to 440
130 to 590

Thermal Properties

Latent Heat of Fusion, J/g 200
200
Maximum Temperature: Mechanical, °C 190
190
Melting Completion (Liquidus), °C 1070
1080
Melting Onset (Solidus), °C 1050
1040
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 230
36
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 57
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
32
Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 2.6
3.8
Embodied Energy, MJ/kg 42
59
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
12 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
75 to 1450
Stiffness to Weight: Axial, points 7.2
7.9
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.4 to 14
12 to 21
Strength to Weight: Bending, points 9.6 to 15
13 to 19
Thermal Diffusivity, mm2/s 69
11
Thermal Shock Resistance, points 8.1 to 15
12 to 21

Alloy Composition

Copper (Cu), % 94 to 96
63.5 to 66.5
Iron (Fe), % 0 to 0.050
0 to 0.25
Lead (Pb), % 0 to 0.030
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
14 to 16
Zinc (Zn), % 3.7 to 6.0
16.2 to 22.5
Residuals, % 0
0 to 0.5

Comparable Variants