IMRI holds a broad variety of welded tubes and seamless pipes in different grades and dimensions in stock for its customers. Our relationships with many local and world leading tube producers allow us to supply material manufactured to suit customers’ individual design requirements.
English name: seamless pipe
Alias: seamless steel pipe
A seamless pipe is a long strip of steel with a hollow section and no seams around it. There are more than 5,100 production plants under more than 1,850 companies in more than 110 countries in the world that produce seamless pipes, of which there are more than 260 plants under more than 170 companies in 44 countries that produce oil pipes.
Features of seamless pipe:
First, the thicker the wall thickness of the product, the more economical and practical it is, and the thinner the wall thickness, the higher the processing cost; secondly, the technology of the product determines its limited performance, generally The precision of seamless steel pipe is low: uneven wall thickness, low brightness inside and outside the pipe, high cost of sizing, and there are pits and black spots on the inside and outside that are not easy to remove; third, its detection and shaping must be processed offline. Therefore, it reflects its superiority in terms of high pressure, high strength, and mechanical structural materials.
ASTM/ASME Standard – Seamless Steel Pipe
|Product name||Executive standard||Steel code/ Steel grade|
|Black and Hot-dipped Zinc-coated Steel Seamless Pipes||ASTM A53||GR.A, GR.B, GR.C|
|Seamless Carbon Steel for High Temperature Service||ASTM A106||GR.B, GR.C|
|Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes||ASTM A179||Low Carbon Steel|
|Seamless Carbon Steel Boiler Tubes for High Pressure||ASTM A192||Low Carbon Steel|
|Seamless Cold-drawn Intermediate Alloy Steel Heat-exchanger and Condenser Tubes||ASTM A199||T5, T22|
|Seamless Medium-carbon Steel Boiler and Superheater Tubes||ASTM A210||A1, C|
|Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes||ASTM A213||T5, T5b, T9 , T11, T22 ,T91|
|Seamless Carbon and Alloy Steel for Mechanical Tubing||ASTM A333||Grade1 Gr. 3,Gr..6, Gr.8 , Gr. 9|
|Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes||ASTM A556||A2, B2|
|Round and shaped steel cold formed welded and seamless carbon steel structural pipe.||ASTM A500||Grade A, B, C, D|
|Welded and seamless steel pipe for piling purposes.||ASTM A252||A252 Grade 1, 2 & 3|
|For seamless ferritic alloy-steel pipe for high-temperature service||ASTM A335||A/SA 335 P1, P2, P11, P12, P15, P22, P91, P92, P122|
Our Factory Site View
Frequently asked questions
Still have questions?
If you cannot find an answer to your question in our FAQ, you can always contact us
and we will be with you shortly.