Is the pipe insulation better with aluminum or iron? why?

I believe that a lot of construction customers think that it is better to use aluminum insulation jacketing or iron insulation jacketing for pipe insulation.

 

First: the iron insulation jacketing sheet is rusted, easily corroded, and has an aesthetic effect, while the aluminum insulation jacketing does not rust and is not easily corroded (causticity is almost non-existent) because the aluminum insulation jacketing forms a layer of aluminum oxytrioxide in the presence of oxygen. film!






In addition: there is no effect of aluminum insulation jacketing package out of iron,the iron insulation jacketing  is also much heavier than aluminum insulation jacketing, construction is not very convenient! There is also the edge of the aluminum insulation material is more expensive than the iron sheet (now the price of iron is the price of cabbage), which in the long run can also save (the price of aluminum scrap is much higher than the price of scrap)!