Seamless pipes by applications

We can makes and markets cold-drawn and hot rolled and cold-drawn special-section seamless pipes which are widely applied in the industries of petrochemical, boiler, automobile, mechanica…

Seamless pipes for high temperature and pressure service


Sunny Steel offer an extensive range of Seamless steel pipes for high temperature and pressure service.

Seamless steel tubes in small calibers for high(low and medium) Pressure boilers and petro chemical industry

Low medium tubes are used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5．88Mpa)

Seamless pipes for low and medium pressure service

Appication for heat exchange tubes, streaming tubes. In the main steel grade as GB3087-2008, ASTM A179, .

Seamless Pipes and Tubes for Pressure Applications


The EN 10216 Euronorm replaces the old DIN 17175 and DIN 1629standards. This standard is designed for pipes used in pressure applications, such as a pipeline.

Tubes for Fluid Transportation Service


Our are widely used for fluid transport, water conveying (sewage water discharge, water divert project), oil and natural gas long distance transmission as well as fluids.

Tubes for Mechanical and Automobile


Seamless Steel usage for Backbone of Automobile and rear axle tube, manufacturing and processing of precision equipments, instruments and apparatus.

Seamless steel pipe for ship building usage


The are mainly used for Level 1& Level 2 pressure pipe in piping system, boiler and super-heated unit of shipbuilding.

Heat exchanger tube


Heat exchange tubes are intended for heating or cooling process fluids, they are for example suitable for closed circuit cooling of electrical equipment using demineralised water and for cooling water soluble oil solutions in quenching tanks.

Tubes for Heat Exchanger and Condensers


Heat exchange tubes are intended for heating or cooling process fluids, they are for example suitable for closed circuit cooling of electrical equipment using demineralised water and for cooling water soluble oil solutions in quenching tanks.

Boiler tubes

Boiler tubes is tubes used for boiler systems, like boilers for civil use in life, general industrial boilers, locomotive boilers and thermal power boiler.

Tech & Service about seamless pipe

Cold-Drawn Seamless Pipe Specifications

Cold Drawn Seamless tubing (also known as CDS). Cold Drawn Seamless tubes offer tight tolerances compared to Hot Finished Seamless tube, and offers stronger physical properties compared to other mechanical tubing.