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C34500 Brass vs. C99750 Brass

Both C34500 brass and C99750 brass are copper alloys. They have 80% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C34500 brass and the bottom bar is C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
130
Elongation at Break, % 12 to 28
20 to 30
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
48
Tensile Strength: Ultimate (UTS), MPa 340 to 430
450 to 520
Tensile Strength: Yield (Proof), MPa 120 to 180
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 910
840
Melting Onset (Solidus), °C 890
820
Specific Heat Capacity, J/kg-K 380
410
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 29
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 45
51
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
190 to 300
Stiffness to Weight: Axial, points 7.1
8.6
Stiffness to Weight: Bending, points 19
21
Strength to Weight: Axial, points 12 to 15
15 to 18
Strength to Weight: Bending, points 13 to 16
16 to 18
Thermal Shock Resistance, points 11 to 14
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Copper (Cu), % 62 to 65
55 to 61
Iron (Fe), % 0 to 0.15
0 to 1.0
Lead (Pb), % 1.5 to 2.5
0.5 to 2.5
Manganese (Mn), % 0
17 to 23
Nickel (Ni), % 0
0 to 5.0
Zinc (Zn), % 32 to 36.5
17 to 23
Residuals, % 0
0 to 0.3