Stainless Steel (SS) Seamless Pipe Implementation Standards:
International Standards:
Internationally, the execution standards for stainless steel seamless pipes mainly include the following:
1. ASTM standard: ASTM standard is a standard issued by the American Society for Testing and Materials, which stipulates the chemical composition, mechanical properties, test methods, etc. of stainless steel materials.
2. DIN standard: DIN standard is a standard issued by the German Institute for Standardization. Its content includes the classification, technical requirements, dimensions and allowable deviations of stainless steel materials.
3. JIS standard: JIS standard is a standard issued by the Japan Industrial Standardization Association. It mainly stipulates the standard requirements for the size, chemical composition and mechanical properties of stainless steel seamless pipes.
American ASTM standard: ASTM A312/A312M-19a "Standard Specification A312/A312M-19a: Seamless, welded and reworked stainless steel pipes"
This standard is applicable to the manufacture of stainless steel seamless, welded, and reprocessed pipes for various purposes. Among them, the materials are divided into various series, including
304/304L stainless steel,
316/316L stainless steel, high temperature smokeless and odorless, etc.; the size range is from 1/8 inch to 24 inches; the mechanical properties include hardness, tensile strength, elongation and other indicators .
European Standard:
European standards refer to the standards issued by the European Committee for Standardization. Among them, there are two main implementation standards for stainless steel seamless pipes:
1. EN standard: EN standard is a common European standard that stipulates the requirements for the classification, chemical composition, mechanical properties, dimensions and allowable deviations of stainless steel materials.
2. BS standard: BS standard is a standard issued by the British Standards Institution, which stipulates specific requirements for the manufacturing, quality control and inspection of stainless steel materials.
European Standard: EN 10216-5 "Seamless steel pipes. Stainless steel pipes for pressure purposes - Part 5: Thermal processed stainless steel pipes"
This standard applies to the manufacture of stainless steel seamless pipes for various purposes. Among them, the materials are divided into various series, including X2CrNi19-11, X5CrNi18-10, X6CrNiTi18-10, etc.; the size range is from 6mm to 508mm; the mechanical properties include hardness, tensile strength, elongation and other indicators.
Chinese Standard:
Our country has also issued a series of standards for the production and use of stainless steel materials. The requirements for stainless steel seamless pipes mainly include the following two standards:
1. GB standard: GB standard is a standard issued by the National Standardization Administration Committee, which provides detailed regulations on the technical parameters, inspection methods, etc. of stainless steel seamless pipes.
2. JB standard: JB standard is a standard issued by the my country Machinery Industry Standardization Committee. It mainly stipulates the dimensions and technical requirements of stainless steel seamless pipes.
Commonly used implementation standards are as follows:
1) National standard: GB/T 14976-2012 "Stainless Steel Seamless Steel Pipe"
This standard is applicable to stainless steel seamless steel pipes in the fields of manufacturing pressure vessels, chemical equipment and accessories. Among them, the materials are divided into more than ten series, including chromium-nickel stainless steel, duplex stainless steel, corrosion-resistant alloy steel, etc.; the size range is from 6mm to 630mm; the mechanical properties include hardness, tensile strength, elongation and other indicators.
2) Petroleum and petrochemical industry standards: SY/T 6267-2006 "Stainless steel seamless steel pipes for the petroleum and petrochemical industry"
This standard is applicable to the manufacture of stainless steel seamless steel pipes in the petroleum and petrochemical fields. Among them, the materials are divided into duplex stainless steel, chromium-nickel stainless steel, high-temperature alloy and other series; the size range is from 17.15mm to 508mm; the mechanical properties include hardness, tensile strength, elongation and other indicators.
3) Shipping industry standards: CB/T 4084-2018 "Technical Conditions for Marine Stainless Steel Seamless Steel Pipes"
This standard applies to stainless steel seamless pipes in the field of shipbuilding. Among them, the material is mainly chromium-nickel stainless steel; the size range is from 10mm to 160mm; the mechanical properties mainly include tensile strength, elongation and other two indicators.
Conclusion:
Stainless steel
seamless pipe is a high-quality pipe that is increasingly used in various industries. In the process of producing and using stainless steel seamless pipes, the above standards must be strictly followed to ensure their safety performance and service life, while also helping enterprises to improve productivity and competitiveness. In addition, attention should be paid to the requirements for material selection, design, installation and maintenance of pipelines to ensure their normal operation.
