... , Long-term corrosion resistance, Exhibits high metallurgical properties3)Standard:BS 1139 Metal scaffoldingBS4568 GALVANIZED STEEL CONDUITS & ACCESSORIESDIN ... purposesIS 4270 Steel Tubes for Water WellsASTM A 53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, ... Carbon steel tubes for general structural purposes4)Steel Grade:IS 3589, IS 1239, IS:1161 Fe 330, Fe 410)BS 1387, BS4568, ...