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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

Copper (Cu) 83.5 to 86.5
Zinc (Zn) 10.6 to 15
Lead (Pb) 1.5 to 2.2
Nickel (Ni) 0 to 0.25
Iron (Fe) 0 to 0.1
Residuals 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