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ASTM B677 is a standard for nickel alloy tubing, and the following is a detailed breakdown of these alloys and their seamless tubing: 1. Overview of the standard Standard number: ASTM B677 Second, the main requirements The ASTM B677 standard mainly specifies the following: Chemical composition requirements: According to different alloy materials, the content of specific elements in the pipe is required to meet the requirements within a certain range. Mechanical property requirements: including tensile strength, yield strength, elongation and hardness and other mechanical property requirements to ensure the performance of materials under various working conditions. Heat treatment requirements: Specify the requirements of heat treatment temperature, time and cooling method to improve the mechanical properties and corrosion resistance of the material. Size and tolerance requirements: Specify in detail the dimensional requirements such as wall thickness, outer diameter, length and other dimensions of the pipe, as well as the allowable dimensional deviation range. Inspection and testing requirements: including chemical composition analysis, mechanical property testing, non-destructive testing and metallographic observation, etc., to ensure the quality of the pipe. Third, the field of application Seamless tubing under ASTM B677 standard is manufactured by cold rolling, cold drawing, and other processes with high precision and excellent surface quality. These tubes are widely used in various fields such as: petrifaction chemical industry Aerospace nuclear energy and marine engineering 4. Precautions Standard Selection: When sourcing and using seamless tubing, ensure that the selected product meets the requirements of the ASTM B677 standard. Quality control: Suppliers are required to provide proof of conformity and inspection reports that meet the requirements of the standard, and comply with relevant safety operating procedures and process requirements during installation and use. Alloy identification: Pay attention to the accuracy of alloy identification to avoid confusing materials of different alloys. In summary, ASTM B677 UNS N08904, UNS N08925, and UNS N08926 seamless pipes and tubes are high-performance tubes with excellent corrosion resistance and mechanical properties that are widely used in several industrial applications. When purchasing and using, the standard requirements and product quality should be carefully checked to ensure that the engineering needs are met.Huanickel?related?products?strictly?implement?this?standard.?For?more?information?about?the?standard?and?the?corresponding?product?information,[email protected] |