Black Rectangular Steel Tube / Pipe Hollow Section

详情

Square/ Rectangular Tube
 Brighten : Brighten steel pipe is made of brighten annealed steel strip ( a kind of material corresponding to CR.) Similar with black tube made of cold rolled coil, brighten steel pipe keeps the original brighten color of steel.
 Hot dipped galvanized: Hot dipped galvanized tube owns thicker zinc coating than pre-galvanized tube. Black tubes will be dipped into zinc pool for galvanizing.
 Electro galvanized: The technology of electro galvanized tube is similar to hot dipped galvanized tube, but the thickness of zinc coating is less than hot dipped galvanized tube.
 Pre-galvanized: Pre-galvanized tube is made of hot dipped galvanized steel strip directly
 Painted :Painted pipe to remove the rust and clean the oil first and then paint the required color paint.
Standard:GB/T***8:***2 , ASTM A**0 , JIS G***6 , EN****0 ,EN****9, ASTM A**0 Gr. A.B.C.
Steel Grade:Q***-Q**5 , Q**5 , S**5, S**5, S**5JR, S**5JR.STK**0/**0 .
Packing: Hexagonal bundles of max. 3,**0kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper
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.
Third party inspection:SGS, BV, Lloyds etc.
Size:
Square Tube