Postalloy® Tool Joint BU-SA is a premium chrome-moly, medium manganese, carbon steel metal cored wire for submerged arc welding with a very smooth arc transfer. This wire is intended for multi-layer build-up of oil drilling tool joints where compatibility with higher carbon steel chemistries is critical.
Modern manufacturing technology ensures the best consistency, in both weldability and feedability. The cleanliness of Postalloy® Tool Joint BU-SA contributes to low
subsurface porosity and the elimination of lack of fusion or “cold laps”. Deposits are crack-free, can be readily machined with high speed and carbide tools and can be flame or plasma cut. Benefits of using POSTALLOY® Tool Joint BU-SA include: