Full-Hard (H04) C66300 Brass
H04 C66300 brass is C66300 brass in the H04 (full hard) temper. It has the second highest ductility compared to the other variants of C66300 brass. The graph bars on the material properties cards below compare H04 C66300 brass to: wrought 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
110 GPa 16 x 106 psi
Elongation at Break
17 %
Poisson's Ratio
0.33
Shear Modulus
42 GPa 6.1 x 106 psi
Shear Strength
360 MPa 52 x 103 psi
Tensile Strength: Ultimate (UTS)
580 MPa 84 x 103 psi
Tensile Strength: Yield (Proof)
560 MPa 81 x 103 psi
Thermal Properties
Latent Heat of Fusion
200 J/g
Maximum Temperature: Mechanical
180 °C 350 °F
Melting Completion (Liquidus)
1050 °C 1920 °F
Melting Onset (Solidus)
1000 °C 1830 °F
Specific Heat Capacity
380 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
110 W/m-K 62 BTU/h-ft-°F
Thermal Expansion
18 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
25 % IACS
Electrical Conductivity: Equal Weight (Specific)
26 % IACS
Otherwise Unclassified Properties
Base Metal Price
29 % relative
Density
8.6 g/cm3 540 lb/ft3
Embodied Carbon
2.8 kg CO2/kg material
Embodied Energy
46 MJ/kg 20 x 103 BTU/lb
Embodied Water
320 L/kg 39 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
97 MJ/m3
Resilience: Unit (Modulus of Resilience)
1380 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
18 points
Thermal Diffusivity
32 mm2/s
Thermal Shock Resistance
20 points
Alloy Composition
| Cu | 84.5 to 87.5 | |
| Zn | 6.0 to 12.8 | |
| Sn | 1.5 to 3.0 | |
| Fe | 1.4 to 2.4 | |
| P | 0 to 0.35 | |
| Co | 0 to 0.2 | |
| Pb | 0 to 0.050 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015