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  • Writer's pictureKANGYE DU

4 MUST-KNOWS before Importing square tube to Australia


  1. The Standards

Chinese Standards are often different, the tensile strength could be different.

Read your local standards and ask questions before searching factories.

The relevant standard to refer to should be:

AS/NZS 11632009 is the standard for Cold-formed structural steel hollow sections

email us for a copy


2. Different Grade, Zinc Coating, Tolerance, wall thickness

c250, C350. C450

Depending on the job the steel used for, consult the surveyor what grade and legal standards of thickness. For example, the thickness used in suppporting must be a 3.5mm or above.


For Example, the post support must fit snugly into the tube, if the wall size is not aligned, it doesn't fit, the whole steel lot could be written off.




3. Choose a reputable factory and do Quality Control before shipment




4. Anti-Dumping Duty

All tube are taxed heavily unless exempted. Worked out the final costs to ensure a fair costs comparison.


The goods subject to measures are: Certain electric resistance welded pipe and tube made of carbon steel, comprising circular and non-circular hollow sections. Normally referred to as either CHS (circular or oval hollow sections) or RHS(rectangular or square hollow sections) collectively referred to as hollow structural sections (HSS), including CHS with other than plain ends, such as threaded, swaged and shouldered.

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