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C99750 Brass vs. C34200 Brass

Both C99750 brass and C34200 brass are copper alloys. They have 80% of their average alloy composition in common. There are 27 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 C99750 brass and the bottom bar is C34200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
100
Elongation at Break, % 20 to 30
3.0 to 17
Poisson's Ratio 0.32
0.31
Rockwell B Hardness 77 to 82
53 to 91
Shear Modulus, GPa 48
40
Tensile Strength: Ultimate (UTS), MPa 450 to 520
370 to 650
Tensile Strength: Yield (Proof), MPa 220 to 280
150 to 420

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
9.0 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
110 to 870
Stiffness to Weight: Axial, points 8.6
7.1
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 15 to 18
13 to 22
Strength to Weight: Bending, points 16 to 18
14 to 20
Thermal Shock Resistance, points 13 to 15
12 to 22

Alloy Composition

Aluminum (Al), % 0.25 to 3.0
0
Copper (Cu), % 55 to 61
62 to 65
Iron (Fe), % 0 to 1.0
0 to 0.1
Lead (Pb), % 0.5 to 2.5
1.5 to 2.5
Manganese (Mn), % 17 to 23
0
Nickel (Ni), % 0 to 5.0
0
Zinc (Zn), % 17 to 23
32 to 36.5
Residuals, % 0
0 to 0.4