HOW TO SELECT HIGH QUALITY SQUARE TUBE?

One type of material that is frequently utilized and in high demand in the industrial building sector is square tube. The quality of the various square tube items available on the market varies. When choosing, consideration should be given to the selection process:

1. Look at the size

Simply test if the real size is one specification or more smaller than the advertised size using the vernier clamp measurement instrument. In general, decent square tubes don't differ all that much from one another. However, it should be mentioned that certain low-quality square pipes can trick individuals by hitting their mouths. As a result, the normal material's end face should essentially be round, while the steel pipe surface's end face should be flat and oval.

2. Look at the performance

When choosing the square tube, we can additionally take into account the following factors because of its specific tensile and compressive qualities: The square tube foundation's performance is determined by its tensile strength, and the higher the tensile strength, the better the square tube performance; The resistance to bending and compression must also be carefully taken into account.

3.Look at the surface quality

Because they are rolled using subpar raw materials, substandard square tubes feature poor surface quality, frequent flaws like scabbing, and a generally rough feel. Due to inadequate rolling speed and heating temperature, some small steel mills produce reddish-brown surfaces; in contrast, high-quality square tubing is certified, flawless, and has a brilliant white hue.

4.Look at the packaging

When the ordinary square and rectangular pipes are delivered from the plant, they are often bundled in huge bundles. On the steel bundles, the metal plates that match the actual items are suspended, bearing information such as the manufacturer, steel brand, batch number, specification, and inspection code; Products made of rectangular tubes that come in tiny bundles (approximately ten bundles) or in bulk, without metal labels and quality assurance certifications, require extra care.