World Steel Number Reference for High-Quality Carbon Structural Steels
The World Steel Number (WSN) is an internationally accepted standard for grading steel. It is used to identify steel by its specific chemical composition, properties, and make up. The World Steel Number System is divided into groups and categories of steels. The categories are the High-Quality Carbon Structural Steels, High-Strength Low-Alloy Steels, Alloy Steels, and Special Steels. This article focuses on the High-Quality Carbon Structural Steels group.
High-Quality Carbon Structural Steel is non-alloy steel that is used for structures, such as cylinders, axles, beams, and bridge supports. It is primarily used in applications requiring strength, durability, and corrosion resistance. Common examples include steel bridges, railroad tracks, and automotive components.
High-Quality Carbon Structural Steel is typically composed of iron (Fe), as well as Carbon (C), Manganese (Mn), Phosphorous (P), Silicon (Si), and Sulphur (S). Each of these elements contributes to the overall performance of the steel and the percentage of their composition are listed below the corresponding WSN.
The main categories in the World Steel Number System for High-Quality Carbon Structural Steel include but are not limited to the following:
Carbon Steel for Pressure Vessels— WSN P235-P355
These steels are for constructing pressure vessels and boilers. They are also used for components that are subjected to high temperatures or pressures.
Carbon Steel for Boilers— WSN P235/S235-P355/S355
These steels are for constructing boilers and are generally made of low-alloy steel for temperature resistance, pressure resistance, and strength.
Low Carbon Steel— WSN C22.8-C35
These steels are for constructing components with good mechanical properties and also offer corrosion resistance.
Carbon Steel For Structures— WSN S235-S355
These are low-alloy steels that are suitable for constructing structures such as bridges, buildings, ships, and offshore installations.
Carbon Steel For Automotive— WSN 30MnB5-50CrV4
These steels are used in the production of vehicles and their components and offer an excellent combination of strength and hardness.
Tool Steel— WSN O1-O10
These steel types are made with a high carbon content and are known for their hardness and excellent wear resistance.
High-Quality Carbon Structural Steels are used in a variety of applications requiring strength, durability, and corrosion resistance. This article provides an overview of the World Steel Number System for High-Quality Carbon Structural Steels and discusses each of the main categories in the system. This should provide the reader with a better understanding of the different types of steels available and what their specific grades are used for.
