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Annealed (OS035) C43500 Brass

OS035 C43500 brass is C43500 brass in the OS035 (annealed to 0.035mm grain size) temper. It has the lowest strength compared to the other variants of C43500 brass. The graph bars on the material properties cards below compare OS035 C43500 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

46 %

Poisson's Ratio

0.32

Rockwell F Hardness

69

Rockwell Superficial 30T Hardness

40

Shear Modulus

42 GPa 6.0 x 106 psi

Shear Strength

220 MPa 32 x 103 psi

Tensile Strength: Ultimate (UTS)

320 MPa 46 x 103 psi

Tensile Strength: Yield (Proof)

120 MPa 17 x 103 psi

Thermal Properties

Latent Heat of Fusion

190 J/g

Maximum Temperature: Mechanical

160 °C 320 °F

Melting Completion (Liquidus)

1000 °C 1840 °F

Melting Onset (Solidus)

970 °C 1770 °F

Specific Heat Capacity

380 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

120 W/m-K 70 BTU/h-ft-°F

Thermal Expansion

19 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

28 % IACS

Electrical Conductivity: Equal Weight (Specific)

30 % IACS

Otherwise Unclassified Properties

Base Metal Price

28 % relative

Density

8.5 g/cm3 530 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)

120 MJ/m3

Resilience: Unit (Modulus of Resilience)

65 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

10 points

Strength to Weight: Bending

12 points

Thermal Diffusivity

37 mm2/s

Thermal Shock Resistance

11 points

Alloy Composition

Copper (Cu) 79 to 83
Zinc (Zn) 15.4 to 20.4
Tin (Sn) 0.6 to 1.2
Lead (Pb) 0 to 0.090
Iron (Fe) 0 to 0.050
Residuals 0 to 0.3

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

Followup Questions