UNS C43000 Tin Brass
C43000 brass is a brass formulated for primary forming into wrought products. It has a moderately high base cost and a moderately high melting temperature among wrought brasses.
The properties of C43000 brass include eight 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 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
3.0 to 55 %
Poisson's Ratio
0.33
Rockwell B Hardness
30 to 100
Rockwell Superficial 30T Hardness
57 to 86
Shear Modulus
42 GPa 6.0 x 106 psi
Shear Strength
230 to 410 MPa 34 to 59 x 103 psi
Tensile Strength: Ultimate (UTS)
320 to 710 MPa 46 to 100 x 103 psi
Tensile Strength: Yield (Proof)
130 to 550 MPa 20 to 79 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)
20 to 150 MJ/m3
Resilience: Unit (Modulus of Resilience)
82 to 1350 kJ/m3
Stiffness to Weight: Axial
7.1 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
10 to 23 points
Strength to Weight: Bending
12 to 20 points
Thermal Diffusivity
36 mm2/s
Thermal Shock Resistance
11 to 25 points
Alloy Composition
Among wrought copper alloys, the composition of C43000 brass is notable for including tin (Sn). Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media.
| Cu | 84 to 87 | |
| Zn | 9.7 to 14.3 | |
| Sn | 1.7 to 2.7 | |
| Pb | 0 to 0.1 | |
| Fe | 0 to 0.050 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.