sch std 90 degree elbow fittings ASTM A234 WPB
Concept of BW elbow
Butt-welding elbows are welded by two steel plates. Generally, large-caliber elbows are made of butt-welding technology. Therefore, in industrial applications, those with a diameter above 600 are basically butt-welding elbows. Butt welding 90° elbows can be divided into long radius (LR) elbows and short radius (SR) elbows according to the bending radius. Other commonly used elbows in fluid pipeline engineering construction include 45° elbows and 180° , Our company can also customize other non-standard elbows according to engineering needs.