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3/4-Hard (H03) C26000 Brass

H03 C26000 brass is C26000 brass in the H03 (3/4 hard) temper. The graph bars on the material properties cards below compare H03 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

Poisson's Ratio

0.31

Rockwell B Hardness

77

Rockwell Superficial 30T Hardness

69

Shear Modulus

41 GPa 5.9 x 106 psi

Tensile Strength: Ultimate (UTS)

470 MPa 68 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

16 points

Strength to Weight: Bending

16 points

Thermal Diffusivity

38 mm2/s

Thermal Shock Resistance

16 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

ASTM B134: Standard Specification for Brass Wire

ASTM B36: Standard Specification for Brass Plate, Sheet, Strip, And Rolled Bar

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