Half-Hard (H02) C32000 Brass
H02 C32000 brass is C32000 brass in the H02 (half hard) temper. The graph bars on the material properties cards below compare H02 C32000 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
11 %
Poisson's Ratio
0.33
Shear Modulus
41 GPa 6.0 x 106 psi
Shear Strength
210 MPa 30 x 103 psi
Tensile Strength: Ultimate (UTS)
350 MPa 51 x 103 psi
Tensile Strength: Yield (Proof)
210 MPa 31 x 103 psi
Thermal Properties
Latent Heat of Fusion
190 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
1020 °C 1880 °F
Melting Onset (Solidus)
990 °C 1820 °F
Specific Heat Capacity
380 J/kg-K 0.091 BTU/lb-°F
Thermal Conductivity
160 W/m-K 90 BTU/h-ft-°F
Thermal Expansion
19 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
36 % IACS
Electrical Conductivity: Equal Weight (Specific)
37 % IACS
Otherwise Unclassified Properties
Base Metal Price
28 % relative
Density
8.7 g/cm3 540 lb/ft3
Embodied Carbon
2.6 kg CO2/kg material
Embodied Energy
42 MJ/kg 18 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
33 MJ/m3
Resilience: Unit (Modulus of Resilience)
200 kJ/m3
Stiffness to Weight: Axial
7.1 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
11 points
Strength to Weight: Bending
13 points
Thermal Diffusivity
47 mm2/s
Thermal Shock Resistance
12 points
Alloy Composition
| Cu | 83.5 to 86.5 | |
| Zn | 10.6 to 15 | |
| Pb | 1.5 to 2.2 | |
| Ni | 0 to 0.25 | |
| Fe | 0 to 0.1 | |
| res. | 0 to 0.4 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B140: Standard Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and Shapes
ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001