Steel standard: ASTM A335/A335M, ASTM A213/A213M, DIN 17175-1979, JIS G3467-1888, JIS G3458-1988, ASTM A333/ASME SA333.
Delivery state: Annealed, Normalized and Tempered. Heat treatment for cold drawn steel pipe.
Surface treatment：Oiled, black painted, shot blasted, hot dipped galvanized.
Inspection：X-ray inspection,manual ultrasonic inspection,surface inspection,hydraulic testing, ultrasonic detection.
Alloy steel pipe is a large pipe type classified by steel material; it has very wide application range:
Conveying fluid pipe：It is mostly used to conveying fluids, such as oil, natural gas, coal gas, water and solid materials.
Structural and mechanical steel: it can also be used for production of structural and mechanical steel parts such as petroleum drill pipe, auto transmission shaft, steel scaffolding, etc.
Low alloy steel pipes mainly used for high-temperature superheaters, power plants, nuclear power plants, high-pressure boilers, pipelines and equipment.
Low Alloy Steel Pipe Application:
ASTM A335/A335M: Structure Pipe, Fluid Pipe, Oil Pipe, Boiler Pipe, Chemical Fertilizer Pipe, Gas Pipe, Hydraulic Pipe.
ASTM A213/A213M: Seamless Ferritic and Austenitic Steel Boiler, Superheater, and Heat-exchanger tubes.
DIN 17175-1979: Heat-resisting Seamless Steel Tube, used for the Pipelines of Boiler Industry.
JISG3458-1988: Boilers And Pressure Vessels, High-Temperature Services, Superheaters.
ASTM A333/ASME SA333: Mechanical and Pressure use, and for Conveying Steam, Water, Gas, etc.
