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UNS C43500 Tin Brass

C43500 brass is a brass formulated for primary forming into wrought products.

The properties of C43500 brass include five common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 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

8.5 to 46 %

Poisson's Ratio

0.32

Shear Modulus

42 GPa 6.0 x 106 psi

Shear Strength

220 to 310 MPa 32 to 45 x 103 psi

Tensile Strength: Ultimate (UTS)

320 to 530 MPa 46 to 78 x 103 psi

Tensile Strength: Yield (Proof)

120 to 480 MPa 17 to 69 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)

44 to 120 MJ/m3

Resilience: Unit (Modulus of Resilience)

65 to 1040 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

10 to 17 points

Strength to Weight: Bending

12 to 17 points

Thermal Diffusivity

37 mm2/s

Thermal Shock Resistance

11 to 18 points

Alloy Composition

Among wrought copper alloys, the composition of C43500 brass is notable for including tin (Sn). Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media.

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

Similar Alloys