This complete guide aims to demystify the A998/A998M-12 steel grade by providing information on its chemical composition, mechanical properties, standard number, and corresponding grades.
1. Chemical Composition: The A998/A998M-12 steel grade is primarily composed of carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), chromium (Cr), molybdenum (Mo), and nickel (Ni). The specific composition may vary depending on the manufacturer and production process.
2. Mechanical Properties: The A998/A998M-12 steel grade possesses certain mechanical properties that make it suitable for various applications. These properties include tensile strength, yield strength, elongation, hardness, and impact resistance. The values of these properties can be determined through standardized testing methods.
3. Standard Number: The A998/A998M-12 steel grade is assigned a specific standard number, which refers to the ASTM International standard specification for structural steel shapes, plates, and bars for use in bolted construction, bridges, and other general structural purposes. This standard number helps ensure the consistency and quality of the steel grade across different manufacturers and applications.
4. Corresponding Grades: The A998/A998M-12 steel grade may have corresponding grades in other international standards, such as EN (European Norm), JIS (Japanese Industrial Standards), and GB (Chinese National Standard). These corresponding grades are designed to provide compatibility and equivalency between different standards, allowing for easier international trade and interchangeability of materials.
In conclusion, understanding the chemical composition, mechanical properties, standard number, and corresponding grades of the A998/A998M-12 steel grade is crucial for selecting the right material for specific applications. This complete guide aims to provide clarity and knowledge about this steel grade, making it easier for engineers, designers, and manufacturers to make informed decisions.