Square Tube Physical analysis of square tube hot dip galvanizing Hot dip galvanizing on the square tube is also called hot dip galvanizing and hot dip galvanizing: in fact, it is an effective way of metal corrosion prevention, and is mainly used in various industries on the metal structure facilities.Generally, the steel parts after rust are immersed in molten zinc at about 500鈩? so that the surface of the steel members is attached with zinc layer, so as to achieve the purpose of corrosion prevention.Hot dip galvanizing accounts for about 95% of the total galvanized, and the amount of zinc with hot dip galvanizing accounts for 40% of the zinc production worldwide, and accounts for about 30% of the zinc production in China.Hot dip galvanized square pipe is also done in this way.General hot dip galvanizing process: the finished product pickling - washing - bath - drying - hanging plating - cooling - cleaning - grinding - hot dip galvanizing is completed in fact, hot dip galvanizing is developed from the older hot dip method. What is galvanizing Galvanizing is one of the most widely used methods of protecting metals from corrosion.It requires a thin coating of zinc on a thicker base metal to help insulate it from its surroundings.The next time you're in your car, look at the street signs and lamp posts you pass.Most of them will have a dumb, silver one on them.This "silver" is actually a coating of zinc. Square tube theoretical weight scale Square tube type 路 Theoretical weight (kg/m) 路 Square tube type 路 Theoretical weight of square tube (kg/m) 路 20*20*1.2 0.75 70*50*4 7.02 25*25*1.2 0.94 70*70*5 10.2 40*40*2 2.29 80*60*3 7.09 40*40*2.5 3.02 80*60*4 8.22 40*40*4 4.68 80*60*5 10.25 50*50*2.5 3.81 80*80*4 9.96 50*50*3 4.44 80*80*6 13.85 50*50*4 5.74 90*40*2.5 5.19 50*30*2.5 3.02 90*60*5 10.47 50*30*3 3.6 100*60*3 7.3 50*32*2 2.2 100*60*4 9.16 50*35*2.5 3.32 100*60*5 11.53 55*38*2 2.8 100*60*4.5 14.41 60*40*2.5 3.81 160*80*4.5 15.84 60*40*3 4.44 100*100*4 11.65 60*40*4 5.74 100*100*8 23 60*60*2.5 4.52 120*120*4 14.16 60*60*3 5.38 160*160*4.5 19.2 60*60*4 7.02 220*80*6 27.1 E-mail:996096164@qq.com Square Tube website:http://www.sjhsteel.com/steel-pipe/square-tube/