Table of Steel Grades for U.S. Producers And Chinese Markets
U.S. Steel Producers and Chinese Markets use different steel grade systems to classify steels. This table provides a comparison of steel grades from the two systems.
U.S. ASTM Grades: American Society for Testing and Materials (ASTM) grades are standardized yield and tensile strengths that are widely accepted by a variety of U.S. applications. These grades will have a suffix and a number to designate the specific alloy within the grade.
Chinese Steel Grades: The Chinese Steel Grades categorize steel based on the physical and chemical properties of the steel. Results of various tests, such as Brinell hardness, are typically used as inputs when deciding on a steel grade. The specific alloys within each grade are then further broken down by numbers that indicate the level of alloys within the grade
Table of Steel Grade Comparisons
This table shows the comparison of U.S. ASTM grades and Chinese steel grades with their corresponding mechanisms and applications.
U.S. ASTM Grades Chinese Steel Grades Mechanisms Applications
A36 Q235A High Strength and Low Alloy Structures, Bridges, Machinery
A572 Q345A High Strength Low Alloy Hot Rolled Construction, Bridges, Machinery
1020 20# Carbon Steel with low carbon content Structures, Bridges, Machinery
4140 42CrMo Molybdenum alloy steel Mining and Heavy Machinery Components
5160 65Mn Spring Steel Springs, Automotive Suspension
Conclusion
Understanding the differences between U.S. ASTM grades and Chinese steel grades is important when looking to source materials. By understanding the differences in the systems, it allows buyers and sellers to identify the grade they need even if they have different systems. This table provides some key comparison points between the two systems that should help buyers and sellers source the correct product.
