How to tubes are produced

Tubing is classified by production method into 'Seamless Tube' and 'Welded Tube'. For Seamless Tubes, extruded method mother tubes go through a certain number of drawings and annealings until they get to required sizes. Welded Tubes are manufactured by roll-forming strip metal and welding the seam, and this method is suitable for mass-producing one size tubing with relatively thin wall. Not warranted be such large size orders, the welding method is not too popular in Japan. Here we show how the seamless tubes are produced.

Range of Manufacturing Dimension