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C42200 Brass vs. C21000 Brass

Both C42200 brass and C21000 brass are copper alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is C42200 brass and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 2.0 to 46
2.9 to 50
Poisson's Ratio 0.33
0.34
Rockwell B Hardness 56 to 87
36 to 73
Rockwell Superficial 30T Hardness 27 to 74
44 to 68
Shear Modulus, GPa 42
43
Shear Strength, MPa 210 to 350
180 to 280
Tensile Strength: Ultimate (UTS), MPa 300 to 610
240 to 450
Tensile Strength: Yield (Proof), MPa 100 to 570
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 200
200
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 1040
1070
Melting Onset (Solidus), °C 1020
1050
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 130
230
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
56
Electrical Conductivity: Equal Weight (Specific), % IACS 32
57

Otherwise Unclassified Properties

Base Metal Price, % relative 29
30
Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 44
42
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 110
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 49 to 1460
21 to 830
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 9.5 to 19
7.4 to 14
Strength to Weight: Bending, points 11 to 18
9.6 to 15
Thermal Diffusivity, mm2/s 39
69
Thermal Shock Resistance, points 10 to 21
8.1 to 15

Alloy Composition

Copper (Cu), % 86 to 89
94 to 96
Iron (Fe), % 0 to 0.050
0 to 0.050
Lead (Pb), % 0 to 0.050
0 to 0.030
Phosphorus (P), % 0 to 0.35
0
Tin (Sn), % 0.8 to 1.4
0
Zinc (Zn), % 8.7 to 13.2
3.7 to 6.0
Residuals, % 0
0 to 0.2

Comparable Variants