Sep 21 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Hot Working Cold Working Annealing
Introduction
The high leaded brass UNS C33200 is ideal for applications that include screw machine parts, screws, valves, bearings, fittings and specialty fasteners. UNS C33200 is an anti-corrosive wrought lead brass. Addition of lead to brass offers high machinability and strength to the alloy.
The following datasheet summarizes the chemical composition and properties of UNS C33200.
Chemical Composition
The following table lists the chemical composition of UNS C33200 alloy.
| Element |
Content (%) |
| Cu |
66.0 |
| Pb |
1.6 |
| Zn |
32.4 |
Physical Properties
The physical properties of UNS C33200 alloy are provided in the following table.
| Properties |
Metric |
Imperial |
| Melting point- liquidus |
932ºC |
1710ºF |
| Melting point - solidus |
899ºC |
1650ºF |
| Density |
8.53 gm/cm3 |
0.308 lb/in3 |
Mechanical Properties
The following table shows the mechanical properties of UNS C33200.
| Properties |
Metric |
Imperial |
| Tensile strength |
359 - 517 MPa |
52100 - 75000 psi |
| Yeild strength |
138 - 414 MPa |
20000 - 60000 psi |
| Elongation at break |
50.00% |
50.00% |
| Poisson's ratio |
0.34 |
0.34 |
| Elastic modulus |
117 GPa |
16969 ksi |
| Machinability |
80% |
80% |
| Shear modulus |
39.0 GPa |
5660 ksi |
Other Designations
The designations associated with UNS C33200 include:
- ASTM B135
- MIL T-46072
- UNS C33200
Fabrication and Heat Treatment
Machinability
UNS C33200 alloy has a machinability rating of 60.
Welding
The welding methods that are commonly used for UNS C33200 include soldering, brazing, oxyacetylene welding, gas shielded arc welding, spot welding and butt welding. Coated metal arc welding and seam welding are not recommended for UNS C33200.
Hot Working
UNS C33200 alloy responds poorly to hot working technique.
Cold Working
Excellent deformation is obtained after cold working UNS C33200 alloy.
Annealing
UNS C33200 is annealed at temperatures ranging between 426 and 648ºC (800 and 1200º F).