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Annealed (OS070) C26000 Brass

OS070 C26000 brass is C26000 brass in the OS070 (annealed to 0.070mm grain size) temper. The graph bars on the material properties cards below compare OS070 C26000 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

59 %

Poisson's Ratio

0.31

Shear Modulus

41 GPa 5.9 x 106 psi

Shear Strength

250 MPa 36 x 103 psi

Tensile Strength: Ultimate (UTS)

330 MPa 48 x 103 psi

Thermal Properties

Latent Heat of Fusion

180 J/g

Maximum Temperature: Mechanical

140 °C 280 °F

Melting Completion (Liquidus)

950 °C 1750 °F

Melting Onset (Solidus)

920 °C 1680 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

120 W/m-K 70 BTU/h-ft-°F

Thermal Expansion

20 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

28 % IACS

Electrical Conductivity: Equal Weight (Specific)

31 % IACS

Otherwise Unclassified Properties

Base Metal Price

25 % relative

Density

8.2 g/cm3 510 lb/ft3

Embodied Carbon

2.7 kg CO2/kg material

Embodied Energy

45 MJ/kg 19 x 103 BTU/lb

Embodied Water

320 L/kg 38 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

6.1 to 420 MJ/m3

Resilience: Unit (Modulus of Resilience)

51 to 1490 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

11 points

Strength to Weight: Bending

13 points

Thermal Diffusivity

38 mm2/s

Thermal Shock Resistance

11 points

Alloy Composition

Copper (Cu)Cu 68.5 to 71.5
Zinc (Zn)Zn 28.1 to 31.5
Lead (Pb)Pb 0 to 0.070
Iron (Fe)Fe 0 to 0.050
Bismuth (Bi)Bi 0 to 0.0059
Residualsres. 0 to 0.3

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

ASTM B19: Standard Specification for Cartridge Brass Sheet, Strip, Plate, Bar, and Disks

Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993