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C21000 Brass vs. C71520 Copper-nickel

Both C21000 brass and C71520 copper-nickel are copper alloys. They have 69% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Elongation at Break, % 2.9 to 50
10 to 45
Poisson's Ratio 0.34
0.33
Rockwell B Hardness 36 to 73
35 to 86
Shear Modulus, GPa 43
51
Shear Strength, MPa 180 to 280
250 to 340
Tensile Strength: Ultimate (UTS), MPa 240 to 450
370 to 570
Tensile Strength: Yield (Proof), MPa 69 to 440
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 200
230
Maximum Temperature: Mechanical, °C 190
260
Melting Completion (Liquidus), °C 1070
1170
Melting Onset (Solidus), °C 1050
1120
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 230
32
Thermal Expansion, µm/m-K 18
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 57
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 30
40
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 2.6
5.0
Embodied Energy, MJ/kg 42
73
Embodied Water, L/kg 310
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
67 to 680
Stiffness to Weight: Axial, points 7.2
8.6
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.4 to 14
12 to 18
Strength to Weight: Bending, points 9.6 to 15
13 to 17
Thermal Diffusivity, mm2/s 69
8.9
Thermal Shock Resistance, points 8.1 to 15
12 to 19

Alloy Composition

Carbon (C), % 0
0 to 0.050
Copper (Cu), % 94 to 96
65 to 71.6
Iron (Fe), % 0 to 0.050
0.4 to 1.0
Lead (Pb), % 0 to 0.030
0 to 0.020
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
28 to 33
Phosphorus (P), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 3.7 to 6.0
0 to 0.5
Residuals, % 0
0 to 0.5

Comparable Variants