Spiral steel pipe was made by steel coil, extrusion forming under the normal temperature, take the technology of double wire and double-faced submerged-arc welded.
O.D.: 219.1mm - 4064mm (8" - 160")
W.T.:3.2 mm - 40mm SCH30, SCH40, STD, XS, SCH80, SCH160, XXS, etc
Material: Q235A, Q235B、10#、20#、Q345（16Mn）、GR.B~X80 PSL1/PSL2.
Standard: ASME SA53, ASTM A53, API 5L, EN10025, DIN 2458, GB
Treatment: 1) Bared 2) Black Painted (varnish coating) 3) Galvanized With Oiled 5) 3 PE, FBE, corrosion resistant coating
Technique: Submerged Arc Welded (SAW)
Inspection: With Hydraulic Testing, Chemical Component Analysis, Mechanical Properties and other inspection
Packing: 1) Bundle 2) In Bulk
Spiral steel pipe was mainly used in public waterworks, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction etc. It is one of the twenty developmental major products of China.
For liquid transportation: water supply, drain off water, petroleum transportation etc.
For gas transmission: coal gas, steam, liquefied petroleum gas,gas etc.
For structure: piling, bridge, wharf,road, architectural structure etc.
Mengcun Town, Cangzhou City, Heibei Province, China. Skype:nklake2007 Mobile:+86-15900332533 email@example.com