General Steel Market Common, appear more frequently, the use rate is galvanized square tube (hot dip galvanized square tube), but now there is a term galvanized square tube, What are the differences between them?
Galvanized square tube is the use of galvanized steel strip is generally between 0.6 mm-2MM, processing a molding, specifications in 15 * 15-100 * 100.The time of antisepsis is long without hot-dip galvanized square tubes.
Galvanized square tube is a kind of hot-rolled or cold-rolled galvanized steel strip or galvanized coil for the blank by cold bending molding and then by high-frequency welding made of square cross-sectional shape and size of the hollow square cross-section steel pipe; or pre-made cold-formed hollow steel pipe and then by hot-dip galvanized galvanized galvanized.
Hot-dip galvanized with Square tube and hot-dip galvanized square tube can be welded, but galvanized with Square tube welding can only use 2.5 electrodes, the current adjusted to 80A, if the line conditional with fluorine-based welding or oxygen welding better.
The galvanized strip square tube is galvanized strip steel processing a molding, anti-corrosion time is not hot galvanized for a long time, hot dip galvanized black square tube processing out.In to galvanized square pipe manufacturers to go galvanized.After a high temperature of 1000 degrees, the General wall thickness is relatively thin not hot galvanized.
There is a difference in quality and classification, galvanized square tube can be processed into hot and cold galvanized square tube, and galvanized square tube can not be made of hot galvanized square tube, because of its relatively thin wall thickness, so compared to hot galvanized square tube than galvanized square tube price to be higher, galvanized layer to be thicker, save time
