As Cast C99400 Brass
As-cast C99400 brass is C99400 brass in the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare as-cast C99400 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
Elastic (Young's, Tensile) Modulus
120 GPa 17 x 106 psi
Elongation at Break
25 %
Poisson's Ratio
0.34
Shear Modulus
44 GPa 6.4 x 106 psi
Tensile Strength: Ultimate (UTS)
460 MPa 66 x 103 psi
Tensile Strength: Yield (Proof)
230 MPa 34 x 103 psi
Thermal Properties
Latent Heat of Fusion
230 J/g
Maximum Temperature: Mechanical
200 °C 400 °F
Melting Completion (Liquidus)
1070 °C 1960 °F
Melting Onset (Solidus)
1020 °C 1860 °F
Specific Heat Capacity
400 J/kg-K 0.1 BTU/lb-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
17 % IACS
Electrical Conductivity: Equal Weight (Specific)
17 % IACS
Otherwise Unclassified Properties
Base Metal Price
30 % relative
Density
8.7 g/cm3 540 lb/ft3
Embodied Carbon
2.8 kg CO2/kg material
Embodied Energy
45 MJ/kg 19 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
95 MJ/m3
Resilience: Unit (Modulus of Resilience)
230 kJ/m3
Stiffness to Weight: Axial
7.5 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
15 points
Thermal Shock Resistance
16 points
Alloy Composition
| Cu | 83.5 to 96.5 | |
| Zn | 0.5 to 5.0 | |
| Ni | 1.0 to 3.5 | |
| Fe | 1.0 to 3.0 | |
| Si | 0.5 to 2.0 | |
| Al | 0.5 to 2.0 | |
| Mn | 0 to 0.5 | |
| Pb | 0 to 0.25 | |
| 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