Spiral submerged arc welding(SSAW) is its forward direction and forming tube centerline hose reel molding angle (adjustable), side molding edge welding and weld them into a spiral.
Usage: Used for low pressure liquid delivery, such as water, gas, and oil; construction and piling.
IS: 3589 Steel tubes for water and sewage
IS : 1978-1982:Steel tubes for use in transportation of oil; gas & Petroleum products
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
DIN 2458 Welded steel pipes and tubes
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
API 5L Line Pipe
ASTM A252 Welded and seamless steel pipe piles
BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52
ASTM A 53: Gr. A, Gr B
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70
Outer Diamter: 219.1mm - 4064mm (8" - 160")
Wall Thickness: 3.2 mm - 40mm
End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled,
Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)
Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield
strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
Mill Test Certificate: EN 10204/3.1B
Third party inspection: SGS, BV, Lloyds etc.