UNS C42600 Tin Brass
C42600 brass is a brass formulated for primary forming into wrought products. It has the highest base cost and a moderately high melting temperature among wrought brasses.
The properties of C42600 brass include seven 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 C42600 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
1.1 to 40 %
Poisson's Ratio
0.33
Shear Modulus
42 GPa 6.1 x 106 psi
Shear Strength
280 to 470 MPa 41 to 69 x 103 psi
Tensile Strength: Ultimate (UTS)
410 to 830 MPa 60 to 120 x 103 psi
Tensile Strength: Yield (Proof)
220 to 810 MPa 33 to 120 x 103 psi
Thermal Properties
Latent Heat of Fusion
200 J/g
Maximum Temperature: Mechanical
180 °C 350 °F
Melting Completion (Liquidus)
1030 °C 1890 °F
Melting Onset (Solidus)
1010 °C 1850 °F
Specific Heat Capacity
380 J/kg-K 0.091 BTU/lb-°F
Thermal Conductivity
110 W/m-K 63 BTU/h-ft-°F
Thermal Expansion
18 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
25 % IACS
Electrical Conductivity: Equal Weight (Specific)
26 % IACS
Otherwise Unclassified Properties
Base Metal Price
31 % relative
Density
8.7 g/cm3 540 lb/ft3
Embodied Carbon
2.9 kg CO2/kg material
Embodied Energy
48 MJ/kg 20 x 103 BTU/lb
Embodied Water
340 L/kg 40 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
9.4 to 140 MJ/m3
Resilience: Unit (Modulus of Resilience)
230 to 2970 kJ/m3
Stiffness to Weight: Axial
7.1 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
13 to 27 points
Strength to Weight: Bending
14 to 23 points
Thermal Diffusivity
33 mm2/s
Thermal Shock Resistance
15 to 29 points
Alloy Composition
Among wrought copper alloys, the composition of C42600 brass is notable for including phosphorus (P) and tin (Sn). Phosphorus is used as an alloy deoxidizer, and to reduce vulnerability to dezincification. Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media.
| Cu | 87 to 90 | |
| Zn | 5.3 to 10.4 | |
| Sn | 2.5 to 4.0 | |
| Ni | 0.050 to 0.2 | |
| Fe | 0.050 to 0.2 | |
| P | 0.020 to 0.050 | |
| Pb | 0 to 0.050 | |
| res. | 0 to 0.2 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993