MakeItFrom.com
Menu (ESC)

C82700 Copper vs. C84200 Brass

Both C82700 copper and C84200 brass are copper alloys. They have 81% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C82700 copper and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.8
15
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 46
40
Tensile Strength: Ultimate (UTS), MPa 1200
250
Tensile Strength: Yield (Proof), MPa 1020
120

Thermal Properties

Latent Heat of Fusion, J/g 240
180
Maximum Temperature: Mechanical, °C 300
150
Melting Completion (Liquidus), °C 950
990
Melting Onset (Solidus), °C 860
840
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 130
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
16
Electrical Conductivity: Equal Weight (Specific), % IACS 21
17

Otherwise Unclassified Properties

Density, g/cm3 8.7
8.5
Embodied Carbon, kg CO2/kg material 12
3.1
Embodied Energy, MJ/kg 180
51
Embodied Water, L/kg 310
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
31
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
72
Stiffness to Weight: Axial, points 7.8
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 38
8.2
Strength to Weight: Bending, points 29
10
Thermal Diffusivity, mm2/s 39
23
Thermal Shock Resistance, points 41
9.1

Alloy Composition

Aluminum (Al), % 0 to 0.15
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Beryllium (Be), % 2.4 to 2.6
0
Chromium (Cr), % 0 to 0.090
0
Copper (Cu), % 94.6 to 96.7
78 to 82
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 0 to 0.020
2.0 to 3.0
Nickel (Ni), % 1.0 to 1.5
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.15
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.1
4.0 to 6.0
Zinc (Zn), % 0 to 0.1
10 to 16
Residuals, % 0
0 to 0.7