High Quality Steel Correspondence Table
Steel has been an integral part of engineering since the Industrial Revolution. Although many different types of steel exist, it can be categorized into two classes, namely high quality steels and regular steels. The former has superior properties when it comes to resistance against corrosion, wear, visibility and electrical conductivity, making them much superior to regular steels. This high quality steel is often imported to meet the needs of specific engineering and manufacturing applications.
This article will discuss the properties of high quality steels. It will also provide a corresponding table showing the common steel grades with their import counterparts.
High quality steels are made from an alloy of iron and one or more other elements, such as carbon, manganese, silicon, vanadium, and molybdenum. A high grade of steel is distinguished from other steels mainly by its chemical composition, which directly influences the physical, mechanical, and corrosion properties of the steel. They are specifically designed to meet different fabrication and engineering requirements. High quality steels usually contain at least 0.50 percent carbon and in certain alloys, it can reach up to 2.40 percent carbon.
Physical properties of high quality steels are mainly dependent on the alloying elements and their content. They are typically harder and weaker than regular steels when it comes to ductility. They also have a much higher yield strength and generally a higher tensile strength than regular steels. The higher strength can be attributed to the alloying element and the manufacturing process. Typical applications of high quality steels are found in the aerospace, automotive and energy sectors.
Import grade steels differ from regular steels in terms of chemical composition and mechanical properties. In general, they are produced much more strictly than regular steels. This ensures that they meet the required specifications and also perform better than regular steels.
The table below shows the common steel grades, such as ASTM A36, ASTM A572, SAE 4140 and AISI 4340 and their import grade counterparts.
Common Steel Grades vs. Import Grades
Common Steel Grade Import Grade
ASTM A36 ASTM E36
ASTM A572 ASTM A656
SAE 4140 SAE 4045
AISI 4340 X2CrNiN18-7
High quality steels can be a valuable addition to any engineering project. They are designed to have superior properties such as corrosion and wear resistance and greater strength. Knowing the various grades available and corresponding import grades is an important part of making any decision when selecting a steel. As technology advances, materials science has been able to provide us with high quality steel grades that can provide the best results.
