tubular steel
Quick Summary
Tubular steel is manufactured using two primary technologies: welding tubes from strip or producing seamless tubes from rounds or blooms.12
Welded Tubes:
* Electric-Resistance Welding (ERW): Strip metal is formed into a tube, and the longitudinal seam is welded using electric resistance. This method is used for tubes up to 500 mm in diameter.1
* Spiral Welding: For larger diameters, strip is formed into a spiral and continuously welded, often using arc welding. This can produce pipes up to 1.5 meters in diameter.1
* U-ing and O-ing: Heavy presses form plates into a U shape, then an O, with the seam welded by automatic arc welding. This is used for very large pipes.1
Seamless Tubes:
* These are made by piercing a solid round or bloom. Roll piercing involves cross-rolling a heated round to create a cavity, which is then formed into a tube by a piercer.2
* Push piercing uses heavy hydraulic pushers and rolls to form a bloom into a hollow round, with a piercer creating the inside diameter.2
* The pierced hollows are then further processed through mills to achieve specific dimensions and wall thicknesses, sometimes using a mandrel.2
Seamless tubing is often used for more demanding applications.3
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furnitureMetal…genre was soon imitated, and tubular steel furniture became a symbol of functionalism. Since then, thinner tubing and plaited wire, with a resiliency similar to that found in wickerwork chairs have been used. Because of its lightness, aluminum became a furniture material.
Read More…genre was soon imitated, and tubular steel furniture became a symbol of functionalism. Since then, thinner tubing and plaited wire, with a resiliency similar to that found in wickerwork chairs have been used. Because of its lightness, aluminum became a furniture material.
Read More- furnitureConstructional style and stylization
…constructional style arose, for the steel tube, which makes smaller dimensions possible, was so strong that it opened up the possibility of completely new designs. Bent steel tubes form a resilient structure.
Read More…constructional style arose, for the steel tube, which makes smaller dimensions possible, was so strong that it opened up the possibility of completely new designs. Bent steel tubes form a resilient structure.
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