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ASTM B674 is a standard specification for welded pipes in UNS N08904, UNS N08925, and UNS N08926. 1. Overview of the standard Standard number: ASTM B674 Scope of application: This standard mainly covers UNS N08904, UNS N08925 and UNS N08926 welded pipes in general corrosion applications. Second, the main requirements The ASTM B674 standard mainly specifies the following: Material requirements: including the chemical composition, physical properties and mechanical properties of the alloy. Manufacturing process: The manufacturing process of welded pipes is specified in detail, including welding methods, selection of welding materials, treatment of welded joints, etc. Dimensional tolerance: The dimensional tolerance requirements such as the outer diameter and wall thickness of the welded pipe are specified. Surface quality: Defects such as surface finish, cracks, inclusions, etc., are limited for the tube. Inspection and testing: The inspection and testing methods of the products are specified to ensure that the quality of the welded pipes meets the standard requirements. Third, the field of application ASTM B674 is a standard specification for UNS N08904, UNS N08925, and UNS N08926 welded pipes, which are widely used in various fields such as: Petroleum and petrochemical equipment Seawater treatment equipment paper industry equipment and other fields 4. Precautions When using the ASTM B674 standard, care should be taken to select the version that applies to the specific product, and to read the standard carefully to understand the requirements and constraints. When purchasing and using UNS N08904, UNS N08925 and UNS N08926 welded pipes, suppliers should be required to provide a certificate of conformity and an inspection report that meets the requirements of the standard. During installation and use, relevant safety operating procedures and process requirements should be observed to ensure the performance and safety of the product. In summary, ASTM B674 is an important standard specification for UNS N08904, UNS N08925, and UNS N08926 welded pipes, which is of great significance for ensuring product quality and performance.Huanickel?related?products?strictly?implement?this?standard.?For?more?information?about?the?standard?and?the?corresponding?product?information,[email protected] |