As Cast C99750 Brass
As-cast C99750 brass is C99750 brass in the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare as-cast C99750 brass to: cast brasses (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
110
Elastic (Young's, Tensile) Modulus
130 GPa 18 x 106 psi
Elongation at Break
30 %
Poisson's Ratio
0.32
Rockwell B Hardness
77
Shear Modulus
48 GPa 6.9 x 106 psi
Tensile Strength: Ultimate (UTS)
450 MPa 65 x 103 psi
Tensile Strength: Yield (Proof)
220 MPa 32 x 103 psi
Thermal Properties
Latent Heat of Fusion
200 J/g
Maximum Temperature: Mechanical
160 °C 330 °F
Melting Completion (Liquidus)
840 °C 1550 °F
Melting Onset (Solidus)
820 °C 1500 °F
Specific Heat Capacity
410 J/kg-K 0.1 BTU/lb-°F
Thermal Expansion
20 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.2 % IACS
Otherwise Unclassified Properties
Base Metal Price
23 % relative
Density
8.1 g/cm3 500 lb/ft3
Embodied Carbon
3.1 kg CO2/kg material
Embodied Energy
51 MJ/kg 22 x 103 BTU/lb
Embodied Water
310 L/kg 38 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m3
Resilience: Unit (Modulus of Resilience)
190 kJ/m3
Stiffness to Weight: Axial
8.6 points
Stiffness to Weight: Bending
21 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
16 points
Thermal Shock Resistance
13 points
Alloy Composition
| Cu | 55 to 61 | |
| Mn | 17 to 23 | |
| Zn | 17 to 23 | |
| Ni | 0 to 5.0 | |
| Al | 0.25 to 3.0 | |
| Pb | 0.5 to 2.5 | |
| Fe | 0 to 1.0 | |
| res. | 0 to 0.3 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015