OCTG casing and tubing is widely used as tubes in furnaces and heat exchangers in oil refineries and seamless steel pipes. They are often used in the manufacturing of both structural and mechanical parts, such as drill pipes, automotive drive shafts, bicycle frames and steel scaffolding. Manufacturing ring shaped work pieces with a petroleum refining pipe improves the utilization and simplify the manufacturing process, as well as save materials and time.
Oil, gas and water are all conveyed to oil and gas industry enterprises using line pipes. Line pipes are divided into 2 primary types: seamless line pipe and welded line pipe. The pipe end includes a flat end, threaded end, and a female end, and can be connected through welding, coupling, bearing, or other methods.
The hot rolled seamless steel pipe replaces the semi-circle plate. The pipe is rolled under a relatively low temperature with a larger deformation during intermediate rolling, so that the austenite grain is finer. The quenching and tempering allows the high toughness and performance stability of the products.
CCS Rules for Classification and Construction of Ships
BV Rules for Classification of Ships
LR Rules and Regulations for Classification of Ships
DNV Rules for Classification of Ships
Square steel tube, rectangular steel tube, flat oval steel tube, hexagonal tube, right trapezoidal tube, and other tubes of complex shapes.