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C99750 Brass vs. C42500 Brass

Both C99750 brass and C42500 brass are copper alloys. They have 67% 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 C42500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Elongation at Break, % 20 to 30
2.0 to 49
Poisson's Ratio 0.32
0.33
Rockwell B Hardness 77 to 82
60 to 92
Shear Modulus, GPa 48
42
Tensile Strength: Ultimate (UTS), MPa 450 to 520
310 to 630
Tensile Strength: Yield (Proof), MPa 220 to 280
120 to 590

Thermal Properties

Latent Heat of Fusion, J/g 200
200
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 840
1030
Melting Onset (Solidus), °C 820
1010
Specific Heat Capacity, J/kg-K 410
380
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
29

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 51
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
12 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
64 to 1570
Stiffness to Weight: Axial, points 8.6
7.1
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 15 to 18
9.9 to 20
Strength to Weight: Bending, points 16 to 18
12 to 19
Thermal Shock Resistance, points 13 to 15
11 to 22

Alloy Composition

Aluminum (Al), % 0.25 to 3.0
0
Copper (Cu), % 55 to 61
87 to 90
Iron (Fe), % 0 to 1.0
0 to 0.050
Lead (Pb), % 0.5 to 2.5
0 to 0.050
Manganese (Mn), % 17 to 23
0
Nickel (Ni), % 0 to 5.0
0
Phosphorus (P), % 0
0 to 0.35
Tin (Sn), % 0
1.5 to 3.0
Zinc (Zn), % 17 to 23
6.1 to 11.5
Residuals, % 0
0 to 0.5