HRB400E steel bar is a seismic steel bar with a core strength greater than the specified value, but the yield strength and elongation should not be too small. The steel bar with E is a seismic steel bar that can meet all the performance indicators of ordinary steel bars and can achieve seismic effect. The ratio of its tensile strength to yield strength shall not be less than 1.25, and the maximum total elongation of the steel bar shall not be less than 9%.
Carbon steel seamless pipes are made by perforating steel ingots or solid round steel, and then hot rolling, cold rolling or cold drawing. Hot-rolled carbon steel seamless pipes are divided into general steel pipes, medium and low pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes, etc.; cold-rolled carbon steel seamless pipes are divided into general steel pipes, high and low pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, etc., as well as carbon thin-walled steel pipes, alloy thin-walled steel pipes, etc.
Hot-dip galvanized round steel pipe is a round steel pipe that has been hot-dip galvanized and its surface is covered with a uniform layer of zinc. This treatment method not only enhances the corrosion resistance of the steel pipe, but also improves its aesthetics and durability. Hot-dip galvanized round steel pipe is widely used in the fields of construction, petroleum, chemical industry, natural gas, water treatment, etc., for the production of structural parts, piping systems, etc.
There are many pipe diameters to choose from, such as 4 inches (about 101.6mm), 3 inches (about 76.2mm), etc., and the outer diameter ranges from 6 to 1240mm. The thickness is generally between 1 and 200mm, and different thicknesses can meet different usage requirements. Common lengths include 3m, etc., and the length can also be customized according to specific circumstances.
Usually the base steel sheet of hot-dip galvanized steel strip has a specific chemical composition, such as a hot-dip galvanized steel sheet, the mass percentage is C: 0.05 - 0.40%, Si: 0.2 - 3.0%, Mn: 0.1 - 2.5%, and the balance is Fe and inevitable impurities. The Zn coating on its surface contains 0.01 to 1% Al and the balance amount of Zn and inevitable impurities.
Hot-dip galvanized steel is a material made by dipping steel into a bath of molten zinc. This process forms a zinc coating on the surface of the steel that provides excellent corrosion protection while maintaining good mechanical properties and formability.
