spiral tube
metric round tube sizes

Spiral Tube

SSAW steel pipe is made up of hot-rolled coiled steel using a double-sided submerged arc welding method.  The welding process allows the steel pipes manufacturers to produce large-diameter steel pipes suitable for different applications.

Specification of Spiral Tube

Steel Pipe


API 5L PSL1, ASTM A53, ASTM A252, SY/T5037, SY/T5040, DIN 30670


ASTM A252 GR.1—3, SS400, ST37, ST52, Q235, Q345, API GR.A, GR.B


OD: 219.1mm-2320mm

Wall thickness


Surface treatment

Galvanized, 3-LAYERS PE, FBE, lacquering, varnishing

Features of Spiral Tube

  • SSAW steel pipe can be produced in longer length (maximum length up to 50 meters) compared to LSAW steel pipes.

  • Due to its spiral seam SSAW pipe has an accurate diameter accuracy and strength.

  • The sizes are adjustable & can be tailored to end-user requirements.

  • Main usage: oil and natural gas transportation pipeline project、Refining Pipeline project、urban water supply and drainage project.

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