Sep 17 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesThermal PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
Introduction
Brass is an alloy mainly consisting of copper and zinc. Brass alloys can be easily shaped and are available in various colors. Brass has high thermal conductivity. UNS C35600 extra high leaded brass alloys have free machining properties and good formability.
The following datasheet gives an overview of UNS C35600 brass alloys.
Chemical Composition
The following table shows the chemical composition of UNS C35600 brass alloys.
| Element |
Content (%) |
| Cu |
63 |
| Pb |
2.5 |
| Zn |
34.5 |
Physical Properties
The physical properties of UNS C35600 brass alloys are tabulated below.
| Properties |
Metric |
Imperial |
| Density |
8.50 g/cm3 |
0.307 lb/in³ |
| Melting point |
885°C |
1630°F |
Mechanical Properties
The mechanical properties of UNS C35600 brass alloys are outlined in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
338 - 510 MPa |
49000 - 74000 psi |
| Yield strength (depending on temper) |
117 - 414 MPa |
17000 - 60000 psi |
| Elongation at break (in 177.8 mm) |
50% |
50% |
| Elastic modulus |
117 GPa |
17000 ksi |
| Poisson's ratio |
0.34 |
0.34 |
| Machinability (UNS C36000 (free-cutting brass) = 100) |
100 |
100 |
| Shear modulus |
37 GPa |
5370 ksi |
Thermal Properties
The thermal properties of UNS C35600 brass alloys are given in the following table.
| Properties |
Metric |
Imperial |
| Thermal expansion co-efficient (@ 20-300°C/ 68-572°F) |
20.5 µm/m°C |
11.4 µin/in°F |
| Thermal conductivity (@ 20°C/ 68°F) |
115 W/mK |
798 BTU in/hr.ft².°F |
Other Designations
Other designations that are equivalent to UNS C35600 brass alloys include:
Fabrication and Heat Treatment
Machinability
The machinability rate of UNS C35600 brass alloys is 100.
Welding
UNS C35600 brass alloys can be welded using brazing, soldering, and butt welding methods. Gas shielded arc welding, oxyacetylene welding, spot welding, coated metal arc welding, and seam welding methods are not used for welding these alloys.
Forging
UNS C35600 brass alloys can be forged at temperatures ranging from 705 to 788°C (1300 to 1450°F).
Hot Working
UNS C35600 brass alloys have average hot forming capacity.
Cold Working
UNS C35600 brass alloys have poor cold working capacity.
Annealing
UNS C35600 brass alloys can be annealed at 427 to 594°C (800 to 1200°F).
Applications
The UNS C35600 brass alloys can be used in screw machine products for peening, thread rolling, crimping, and knurling purposes. They also find applications in the following areas:
- Watch
- Hose fittings
- Bicycle spoke nipples
- Clock and lock parts
- Plumbing valve components