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

• Seamless pipes Specifications and Execution Standard
• ASTM Standards for steel pipes
• Internal defect control of small-diameter high-pressure boiler pipe
• Carbon & alloy : ASTM A179,ASTM A213 T11,A213 T12, A213 T22

Wall Thickness: 2mm-30mm

but we can also produce other specification according to the customers requirements.

Boiler tubes

Boiler tubes need to withstand high pressure and temperature.

• Hardness testing methods of high-pressure boiler tubes
• Boiler pipe forming: ① fin tube ② serpentine tube ③ reaming welding
• Characteristics of boiler pipe
• Heat boiler seamless extrusion technology
• Low and medium pressure boiler pipe

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.

Seamless steel pipe for ship building usage

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

U-bend or U-shape tubes

• Standard for U bend Tubes
• ASTM A556M-88 Seamless cold drawn steel feedwater heater tubes 1
• U-tube Usage: Boilers, heat exchangers, super heaters, condensers
• U bend tube out package
• Tubes for Heat Exchanger and Condensers

Internal Threaded Tubes

Internal Threaded Tubes are served in super/ultra super critical water wall panels over 300,000KW of boiler, chemical, electricity industries.

Tubes for Mechanical and Automobile

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

• DIN2391 St35St45St52
• ASTM A519 1010, 1020, 1025, 1035, 1045
• ASTM A513 1010, 1020, 1025, 1035, 1040

Tubing and Casing

Line pipes are used to transport oil and gas, water, mineral slurry and other fluids.

Leading Big O.D. Steel seamless pipes supplier in Asia

Big OD seamless pipes dominates 65% of market share in Chinese boiler industry.

 

GOST 633-80 Tubing and Couplings

Tubing is used for oil and gas production. Tubing shall be made seamless, plain or upset and coupling with high-seal connections. Coupling-free connections are possible.