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HT C82000 Copper vs. HT C99750 Brass

Both HT C82000 copper and HT C99750 brass are copper alloys. Both are furnished in the heat treated (HT) condition. They have 58% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is HT C82000 copper and the bottom bar is HT C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
130
Elongation at Break, % 8.0
20
Poisson's Ratio 0.34
0.32
Rockwell B Hardness 95
82
Shear Modulus, GPa 45
48
Tensile Strength: Ultimate (UTS), MPa 690
520
Tensile Strength: Yield (Proof), MPa 520
280

Thermal Properties

Latent Heat of Fusion, J/g 220
200
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1090
840
Melting Onset (Solidus), °C 970
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 46
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 60
23
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 5.0
3.1
Embodied Energy, MJ/kg 77
51
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
87
Resilience: Unit (Modulus of Resilience), kJ/m3 1120
300
Stiffness to Weight: Axial, points 7.5
8.6
Stiffness to Weight: Bending, points 18
21
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
18
Thermal Shock Resistance, points 24
15

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.25 to 3.0
Beryllium (Be), % 0.45 to 0.8
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 2.2 to 2.7
0
Copper (Cu), % 95.2 to 97.4
55 to 61
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 0 to 0.020
0.5 to 2.5
Manganese (Mn), % 0
17 to 23
Nickel (Ni), % 0 to 0.2
0 to 5.0
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
17 to 23
Residuals, % 0
0 to 0.3