What are the national standards for steel materials?

 

There are different national standards for steel materials around the world, and the specific standards depend on the country and the intended use of the steel. Some examples of national standards for steel materials are:

• ASTM (American Society for Testing and Materials) standards: These are widely used in the United States and cover a wide range of steel products, including structural steel, carbon steel, alloy steel, stainless steel, and tool steel.
• EN (European Norm) standards: These are developed by the European Committee for Standardization (CEN) and cover various types of steel products, including structural steel, stainless steel, and high-strength steel.
• JIS (Japanese Industrial Standards) standards: These are developed by the Japanese Industrial Standards Committee and cover various types of steel products, including carbon steel, alloy steel, stainless steel, and tool steel.
• GB (Chinese National Standards) standards: These are developed by the Standardization Administration of China (SAC) and cover various types of steel products, including carbon steel, alloy steel, and stainless steel.
• ISO (International Organization for Standardization) standards: These are developed by the ISO and cover various types of steel products, including structural steel, stainless steel, and high-strength steel.

These national standards specify the requirements for the chemical composition, mechanical properties, manufacturing methods, and testing procedures of the steel materials. The standards ensure that the steel materials meet certain quality and safety requirements and facilitate international trade by providing a common language for steel products.