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Annealed (OS035) C43000 Brass

OS035 C43000 brass is C43000 brass in the OS035 (annealed to 0.035mm grain size) temper. It has the lowest strength and highest ductility compared to the other variants of C43000 brass. The graph bars on the material properties cards below compare OS035 C43000 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

55 %

Poisson's Ratio

0.33

Rockwell B Hardness

30

Rockwell F Hardness

69

Shear Modulus

42 GPa 6.0 x 106 psi

Shear Strength

230 MPa 34 x 103 psi

Tensile Strength: Ultimate (UTS)

320 MPa 46 x 103 psi

Tensile Strength: Yield (Proof)

130 MPa 20 x 103 psi

Thermal Properties

Latent Heat of Fusion

190 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

1030 °C 1880 °F

Melting Onset (Solidus)

1000 °C 1830 °F

Specific Heat Capacity

380 J/kg-K 0.091 BTU/lb-°F

Thermal Conductivity

120 W/m-K 69 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

27 % IACS

Electrical Conductivity: Equal Weight (Specific)

28 % 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

330 L/kg 39 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

140 MJ/m3

Resilience: Unit (Modulus of Resilience)

82 kJ/m3

Stiffness to Weight: Axial

7.1 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

10 points

Strength to Weight: Bending

12 points

Thermal Diffusivity

36 mm2/s

Thermal Shock Resistance

11 points

Alloy Composition

Copper (Cu) 84 to 87
Zinc (Zn) 9.7 to 14.3
Tin (Sn) 1.7 to 2.7
Lead (Pb) 0 to 0.1
Iron (Fe) 0 to 0.050
Residuals 0 to 0.5

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

Followup Questions