Tianjin rectangular hollow sections

Today, China hollow section tubes have a potential great demand in the international steel pipe market. Especially Tianjin rectangular hollow sections have been widely used in a variety of applications, such as structural applications in residential, commercial as well as industrial construction. Besides, as the flat square surfaces of rectangular hollow sections have the ability to ease construction, they are sometimes preferred for architectural aesthetics in exposed structures. Today, Tianjin rectangular hollow sections have also become very popular in many forms of construction and other structural & mechanical applications.

Tianjin rectangular hollow sections are widely used as structural steel pipes in more and more construction projects in the modern times because this type of steel pipe are high tensile property, flexible, e.g, can be designed and fabricated to any height and strength, are easy to install, possess structural reliability, easy to maintain and are corrosion resistant. Galvanized pipe is usually used as one common type of industrial steel pipe, which has been coated with a layer of zinc. Galvanized pipes offer increased protection against corrosion. Furthermore, galvanization is often less expensive than other types of corrosion protection, which make galvanized pipes more cost effective.

In the current steel pipe market, rectangular steel pipe, round steel pipe and square steel pipe are the three major members of the hollow structural sections which are metal profiles with square or rectangular tube section. Rectangular hollow sections are cold formed and welded from either hot rolled, cold rolled, pre-galvanized or stainless steel. ASTM A500 is the most common steel specification for hollow structural section in the current steel pipe market around the world. This specification is for cold formed welded and seamless carbon steel tubing in round, square and rectangular shapes. ASTM A501 is another standard for hot formed steel tubing.

As a rule, a structural steel shape is a profile, formed with a specific cross section and following certain standards for chemical composition and mechanical properties. Structural steel shapes, sizes, composition, strengths, storage practices, etc., are regulated by standards in most industrialized countries. Tianjin rectangular steel pipe has good quality and competitive price in the world due to its distinctive features and local advantages in the development for many years. Tianjin steel pipe manufacturers always try to make full use of all kinds of rich resources, as well as to combine with their own advantages so as to give full play to production activities.