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.
| Cu | 79 to 83 | |
| Zn | 15.4 to 20.4 | |
| Sn | 0.6 to 1.2 | |
| Pb | 0 to 0.090 | |
| Fe | 0 to 0.050 | |
| res. | 0 to 0.3 |
All values are % weight. Ranges represent what is permitted under applicable standards.