The main difference between HRB500E and HRB400E is in terms of mechanical performance,
1. The yield strength of 500 (E) increased by 25%;
2. The tensile strength of 500 (E) increased by 20.8%;
3. The tensile strength of 500 (E) increased by 13.89%;

Low carbon steel is a ductile material. The stress-strain curve during stretching is mainly divided into four stages: elastic stage, yield stage, strengthening stage, and local deformation stage. There are obvious yielding and necking phenomena in the local deformation stage. At the beginning, it is the elastic stage, fully following Hooke's law and rising in a straight line. After the proportional limit, the deformation accelerates, but there is no obvious yield stage.

1. Widely used in light industry
2. Suitable for construction industries such as railways, highway protection, street light poles, etc.
3. For marine components
4. Suitable for power towers, communication towers and other projects

Steel has high strength and elastic modulus. Compared with concrete and wood, the ratio of density to yield strength is relatively low. Therefore, under the same stress conditions, the component section of steel structures is small, the self weight is light, and it is easy to transport and install. It is suitable for structures with large spans, high heights, and load-bearing capacity.

Under the welded pipe from the top of the arc, from top to bottom all-position welding technique, the method of welding speed, weld appearance, good welding quality, you can save welding materials, reduce labor intensity, which is a common SMAW can not be compared and now more widely used in large-caliber long-distance pipeline welding in all position of power in the construction of low-welded large diameter thin-walled tube has some promotional value.

The specification of hot rolled equal leg angle steel is 2 # - 20 #. Angle steel can be used to form various types of load-bearing components according to different structural requirements, and can also be used as an adjacent member between components. It is widely used in various architectural and engineering structures, such as roof beams, bridges, power transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, and warehouses.