Lead has traditionally been used in a wide range of applications. As a very dense metal, it is extremely heavy, which means it is ideal where there is a need for a lot of weight in a small physical dimension. A good example of this would be a bridge counterweight, where the heft and weight of the lead can be an advantage.
Lead is also an ideal option when there is a need to transport or to store nuclear or radioactive types of materials. Lead containers for this type of transport are typically made through a process known as custom lead casting.
This same process can also be used to create lead contains, counterweights or component of any size, shape or dimension. Generally, there will be a limit on the ability of a company to complete custom lead casting based on the weight of the final product and its physical dimensions.
Considerations
As with all types of casting the material, in this case, the lead, is heated until it is a liquid. As lead is poisonous as a vapor and in a dust form, the melting of large amounts of lead has to be done in very controlled environments.
Lead will melt at 630 degrees Fahrenheit, so specialized equipment needs to be used throughout the casting process. Every aspect of the casting process has to be carefully planned, and the casts are prepared to ensure the final product is to all specifications.
Testing
For any containment, anything components made using custom lead casting should be tested to ensure it is solid. With more complex shapes and with limited experience it is possible for bubbles or voids to develop in the lead. By using gamma scanning, it is possible to detect any of these voids that pose a significant risk for leaks of radiation.
