Alloy G-30 (UNS N06030) is a Ni-Cr-Fe corrosion-resistant alloy with alloying additions of molibdenum, tungsten, copper and niobium. Generally resistant to oxidizing environments, it's extremely resistant to phosphoric acid (P2O5) and thus used widely in the production of agrichemical fertilizers. It can be seen as a low-carbon variant of alloy G, with improved weldability (it's less prone to heat-affected zome carbide precipitation and hot-cracking), and ductility.Used in phosphoric acid plants, sulphuric acid service, nitric acid service, pickling operations, petrochemical operations, fertilizer manufacture, pesticide manufacture, gold extraction and nuclear waste processing.
The pipe bend is made by using a complete set of bending equipment, which is divided into two processes: cold bending and hot pushing. Regardless of the type of machine equipment and pipeline, most of them use pipe bends, which are mainly used for oil, gas, liquid infusion, engineering bridge construction, etc. According to its curvature radius: it can be divided into long radius elbows and short radius elbows. Long radius elbows refer to elbows whose curvature radius is equal to 1.5 times the outer diameter of the pipe, that is, R=1.5D; short radius elbows refer to elbows whose curvature radius is equal to the outer diameter of the pipe, that is, R=1.0D.
Alloy G-30 of chemical composition and physical properties