Radioactive Ir-192 is used principally for non-destructive testing (NDT) and, to a lesser extent, as a radio-tracer in the oil industry.
Industrial gamma radiography involves the testing and grading of welds on pressurized piping, pressure vessels, high-capacity
storage containers, pipelines, and certain structural welds. Other tested materials include concrete (locating rebar or conduit
within the concrete), machined parts, plate metal, and pipe wall. Gamma radiography is also used to identify flaws in metal
castings and welded joints, as well as to indicate structural anomalies due to corrosion or mechanical damage.