Grade: 304/304l/316/316l
Od:0.3mm~300mm
Wt:0.08mm~1.5mm
Length max: 22000mm
Package:bundled with knitted plastic bag, wooden cases or according to customers' request.
Payment terms:fob, cif


As welded tubing

As welded tubing is our least expensive product line, and is manufactured by running coils of annealed strip through a cold roll forming process. It is continuously welded using appropriate shielding gases for each alloy to prevent oxidation of the seam. With as welded tubing, the seam is clearly visible on both the exterior and interior of the tube, but the size of the weld bead is held within strict tolerances.

Typical applications for as welded tubing include tubular heating elements for both industrial and consumer targeted end products, beverage or fluid transportation systems, mechanical devices, automotive applications, and heat exchange devices.
Bead rolled tubing

Bead hammered tubing is initially formed with a process identical to that of as welded tubing, except that an additional, special cold roll forming process with an interior mandrel support is added to smooth both the interior and exterior weld seam. As a result, the seam is nearly invisible on both the exterior and the interior, creating a tube that is an excellent, lower cost substitute for seamless tubing.

Applications for bead hammered tubing include anything where interior and exterior smoothness are important, such as certain liquid and gas handling applications, and fabricated applications where exterior fittings require a smooth surface.