High Strength Low Alloy Structure Steel Hot Rolled Plate Chemical Composition and Mechanical Propertie
High strength low alloy (HSLA) structure steel hot rolled plate is a kind of steel plate with high strength and low alloy. It has the characteristics of good formability, weldability and some temperature and corrosion resistance. This kind of steel plate can be used in a variety of applications and plays an important role in many industries. So, the chemical composition and mechanical properties of the hot rolled plate of high strength low alloy structure steel are the two basic performance tests of the product.
First lets understand the chemical composition of high strength low alloy structure steel hot rolled plate. HSLA steel plate is composed of carbon, sulfur, phosphorus, silicon, manganese, chromium, nickel, molybdenum and other elements. The content of each alloy element percentage is as follows: carbon less than 0.25%, silicon less than 0.6%, manganese less than 1.6%, chromium more than 5.0%, nickel more than 0.5%, molybdenum more than 0.25%. For the chemical elements in the steel plate, the traditional element test and copper sulfate test are adopted. The traditional element test can check the amount of residual elements such as sulphur, phosphorus, annealing elements, etc. The copper sulfate test is to put the sample in sulfuric acid after heating for a certain period of time, so that the reactive element test is carried out.
Besides, lets move to the mechanical properties of high strength low alloy structure steel hot rolled plate. The mechanical properties are mainly determined by the tensile strength test, the impact test and the compression test. Tensile strength tests are used to measure the performance of a material when tensile forces are applied to it. The impact test is used to assess the ability of steel to absorb kinetic energy. The compression test is used to assess the compressive strength of a product when a compressive force is applied. Generally speaking, the tensile strength of HSLA steel plates is 370 to 510MPa, the elongation is over 30%, the yield strength is 260MPa, and the impact toughness is over 40J.
After understanding the chemical composition and mechanical properties of high strength low alloy structure steel hot rolled plate, lets look at the application field of HSLA steel plates. The hot rolled HSLA steel plate has good formability, weldability and corrosion resistance, so it can be widely used in the manufacture of parts such as mining machinery, locomotives, ships, bridges and carriages, and transmission towers. The hot rolled HSLA steel plate has a wide range of applications in various industrial fields.
In conclusion, the high strength low alloy structure steel hot rolled plate has good chemical composition and mechanical properties. Its chemical elements are mainly carbon, sulfur, phosphorus, silicon, manganese, chromium, nickel, molybdenum, etc., and its tensile strength and impact toughness are various. In such a wide range of applications, it plays an important role in many industries, and its advantages are irreplaceable.
