SPECIFICATION FOR SPIRAL WELDED PIPE:

1. Standard and Material:

BS1387 & EN10217 & DIN2458: S185, S235, S235JR, S275, S275JR, S355JRH, St33, St37, St44, St52

ASTM A53: Grade A, B, C, D

API 5L: Grade A, B, X42, X46, X52, X56, X60, X65, X70

2. Dimensional Range:

Outside Diameter: 8" ~ 160" (219.1mm ~ 4064.0mm)

Wall Thickness: 3.0mm ~ 50.0mm

Length: 6 meters ~ 18 meters

End: Plain End, Beveled End

3. Surface Treatment:

Black Lacquer Painted, Hot Dip Galvanized, Electro Galvanized, Varnish Coating/Anti-Rust Oil Painting

Coal Tar Epoxy, Fusion Bond Epoxy, 3-Layers PE