What are the quality specifications and standards for stainless steel big diameter welded pipes?- Shanghai Toko Technology Co.,Ltd

Quality specifications and standards for stainless steel big diameter welded pipes are essential to ensure the reliability, safety, and performance of these pipes in various industries and applications. Stainless steel welded pipes with large diameters are commonly used in industries such as oil and gas, petrochemical, chemical processing, power generation, and construction. To meet specific requirements and ensure uniformity and consistency in the manufacturing process, several internationally recognized specifications and standards govern the production of these pipes. Some of the key quality specifications and standards for stainless steel big diameter welded pipes include:

ASTM A312 / A312M - Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes:

This specification covers seamless, welded, and heavily cold-worked austenitic stainless steel pipes intended for high-temperature and general corrosive service. ASTM A312 defines the dimensions, tolerances, mechanical properties, and testing requirements for stainless steel welded pipes with various diameters.

ASTM A358 / A358M - Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications:

ASTM A358 outlines the requirements for electric-fusion-welded austenitic chromium-nickel stainless steel pipes suitable for high-temperature and general applications. The specification covers pipes with large diameters and specifies the methods of welding, mechanical properties, and non-destructive testing.

ASTM A790 / A790M - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe:

This specification applies to seamless and welded duplex stainless steel pipes used in corrosive environments and high-temperature applications. ASTM A790 includes requirements for dimensions, mechanical properties, chemical composition, and testing.

ASTM A928 / A928M - Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal:

ASTM A928 provides requirements for electric-fusion-welded duplex stainless steel pipes with the addition of filler metal. The specification covers the dimensions, mechanical properties, chemical composition, and testing procedures.

ASME B36.10M - Welded and Seamless Wrought Steel Pipe:

This standard, issued by the American Society of Mechanical Engineers (ASME), specifies the dimensions and weights of welded and seamless wrought steel pipes, including stainless steel pipes. It provides a standard method for pipe size designation, and it is widely referenced for stainless steel big diameter welded pipes.

EN 10217-7 - Welded Steel Tubes for Pressure Purposes - Technical Delivery Conditions - Part 7: Stainless Steel Tubes:

EN 10217-7 is a European standard that specifies the technical delivery conditions for welded stainless steel tubes used in pressure applications. It covers the manufacturing process, dimensions, tolerances, mechanical properties, and testing requirements for stainless steel welded pipes.

ISO 1127 - Stainless Steel Tubes - Dimensions, Tolerances, and Conventional Masses per Unit Length:

This International Organization for Standardization (ISO) standard provides guidelines for the dimensions, tolerances, and conventional masses per unit length of stainless steel tubes, including welded pipes. It is referenced in various industries as a basis for dimensional requirements.

NACE MR0175 / ISO 15156 - Petroleum and Natural Gas Industries - Materials for Use in H2S-Containing Environments in Oil and Gas Production:

NACE MR0175 / ISO 15156 is a standard that addresses the selection and qualification of materials, including stainless steel, for use in environments containing hydrogen sulfide (H2S) in oil and gas production. Compliance with this standard is crucial for ensuring the resistance of stainless steel welded pipes to sulfide stress cracking and other forms of corrosion in such environments.

It is important to note that the specific quality specifications and standards applicable to stainless steel big diameter welded pipes may vary depending on the industry, intended application, and location of the project. Manufacturers, suppliers, and end-users should ensure compliance with the relevant standards to guarantee the quality and reliability of the pipes for their specific applications.