The Federal Job Series 3700 – Metal Processing contains many jobs that involve working with metals to change their physical or chemical properties in order to get them to do what they need to do. This series includes jobs that include working with metals in many ways, like welding, plating, melting, alloying, casting, annealing, heat treating, and refining.

Most of the time, these jobs are in federal buildings that need to make, fix, or keep metal parts and structures in good shape. People who work in this series may use unique tools and methods to change the properties of metals and alloys including steel, aluminum, copper, and titanium so they can be used in different ways. A good understanding of metallurgy, the ability to use tools and machines with accuracy, and following safety and quality standards are often required for the job.

The 3700 series has specific jobs including welders, metal platers, heat treaters, and foundry workers. Each job has its own skill and grading standards. For instance, welders in this series need to be skilled in electric, gas, and other welding methods so they can make or fix parts for buildings, cars, ships, and other structures.