Schedule 40 Galvanized Pipe

The zinc layer on the surface of the galvanized pipe can play a role in isolating air and water. Zinc will form a dense zinc oxide protective film in the air, which can prevent the steel pipe matrix from contacting with external oxygen, water and other corrosive media. For example, in a humid environment or in soil with a certain pH, galvanized pipes are more resistant to corrosion than ordinary steel pipes. Even if the zinc layer is locally damaged, the galvanic reaction formed by zinc and iron will cause zinc to be corroded as the anode first, thereby protecting the steel tube matrix, which is called sacrificial anode protection.

Galvanized pipes perform well in terms of strength and toughness. It can withstand a certain pressure, suitable for transporting various fluids, such as in the building water supply system, can withstand the usual water pressure of the urban water supply (general multi-storey residential water supply pressure is about 0.3-0.4MPa). At the same time, the toughness of the galvanized pipe makes it not easy to break during the installation process or when it is impacted by a certain external force. For example, in construction, galvanized pipe in the handling and installation, even if accidentally dropped or collided, most of them only produce local deformation, rather than broken like some brittle materials.

The existence of zinc layer makes the galvanized pipe have bright metallic luster and beautiful appearance. This appearance can not only play a beautifying role in architectural decoration and other application scenarios, but also the durability of the zinc layer is good. Unlike ordinary steel pipes, which are easy to rust and discolor, galvanized pipes can remain relatively stable in appearance during long-term use. For example, in some interior decoration handrails, railings and other applications, galvanized pipes can maintain a bright appearance for a long time and reduce maintenance costs.

The hot-dip galvanized layer has stable chemical properties and has long been a standard pipe material for drinking water transportation. It can also be used in contact applications such as agricultural greenhouse supports. Both steel and zinc are 100% recyclable, meeting green building requirements.