Hot-dip galvanizing is a chemical treatment that melts zinc ingots at high temperatures, with good adhesion and high zinc content. The amount of zinc on the galvanized steel grating directly affects the service life of the steel grating.
1. When the thickness of the steel grating is between 1.5-3mm, the average zinc thickness on the hot-dip galvanized steel grating should be greater than 55μm, and the local thickness should be greater than 45μm.
2. When the thickness of the steel grating is between 3-6mm, the average zinc thickness on the hot-dip galvanized steel grating should be greater than 70μm, and the local thickness should be greater than 55μm.
3. When the thickness of the steel grating is equal to or greater than 6mm, the average zinc thickness on the hot-dip galvanized steel grating should be greater than 85μm, and the local thickness should be greater than 70μm.

The service life of hot-dip galvanized seamless pipe is very long. Galvanizing can increase the corrosion resistance of steel pipes and extend their service life. Galvanized steel pipes used in cities can reach 30 years, and galvanized steel pipes used in other corrosion-prone areas have a longer service life. How long they can be used mainly depends on the thickness of the galvanized layer of the steel pipe.
After galvanizing, the steel pipe has actually played an anti-rust role, and no other anti-rust treatment is required. If you want to further improve the anti-rust effect, you can use physical anti-rust methods, that is, brush a layer of anti-rust paint on the surface or spray a layer of anti-rust paint.

Medium and thick steel plates refer to steel plates with a thickness between 4-60mm, and their production processes mainly include hot rolling cold rolling, and medium and thick plate rolling. Hot rolling is to produce steel plates by continuous rolling after heating the steel billet to a certain temperature; cold rolling is to produce steel plates by continuous rolling after cooling the steel billet to a certain temperature; medium and thick plate rolling is to roll the steel plates produced by hot rolling or cold rolling again to achieve the required thickness.

Hot rolled steel plates refer to flat steel plates produced by hot rolling, and their thickness is generally between 3-20mm. The production process of hot-rolled flat plates mainly includes hot rolling, pickling, and leveling. Hot rolling is to produce steel plates by continuous rolling after heating the steel billet to a certain temperature; pickling is to remove the iron oxide and impurities on the surface of the steel plate; leveling is to level the steel plate through a leveling machine to achieve the required flatness.