EN 10216 is a European standard that specifies the technical delivery conditions for seamless and welded steel pipes for pressure purposes. It applies to pipes used in pressure applications at high temperatures, as well as in general engineering applications.
The EN 10216 standard is divided into several parts, each covering specific aspects of the technical delivery conditions for steel pipes. Here are the main parts of the standard:
– EN 10216-1: This part of the standard specifies the general requirements for seamless steel pipes for pressure purposes. It covers the manufacturing process, chemical composition, mechanical properties, and dimensions of the pipes.
– EN 10216-2: This part of the standard specifies the technical delivery conditions for seamless steel pipes for pressure purposes made of non-alloy and alloy steel with specified elevated temperature properties. It covers the grades of steel, chemical composition, mechanical properties, and dimensions of the pipes.
– EN 10216-3: This part of the standard specifies the technical delivery conditions for seamless steel pipes for pressure purposes made of fine-grain steel with specified properties at elevated temperatures. It covers the grades of steel, chemical composition, mechanical properties, and dimensions of the pipes.
– EN 10216-4: This part of the standard specifies the technical delivery conditions for seamless steel pipes for pressure purposes made of non-alloy and alloy steel with specified low-temperature properties. It covers the grades of steel, chemical composition, mechanical properties, and dimensions of the pipes.
– EN 10216-5: This part of the standard specifies the technical delivery conditions for seamless and welded steel pipes for pressure purposes made of non-alloy and alloy steel with specified high-temperature properties. It covers the grades of steel, chemical composition, mechanical properties, and dimensions of the pipes.
The EN 10216 standard is important for manufacturers and users of steel pipes for pressure purposes, as it defines the technical delivery conditions for these pipes and ensures their quality and safety.
EN 10216-1 specifies the general requirements for seamless steel pipes for pressure purposes. Here are the specific requirements for seamless steel pipes according to EN 10216-1:
1. Manufacturing process: The pipes shall be manufactured by hot finished or cold finished processes. The hot-finished pipes shall be reheated and furnished in the normalized, normalized and tempered, or annealed condition, while the cold-finished pipes shall be furnished in the normalized or normalized and tempered condition.
2. Chemical composition: The steel shall have a specified chemical composition, which shall be determined by the analysis of the steelmaking process. The chemical composition shall be within the specified limits for carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, nickel, copper, and other elements.
3. Mechanical properties: The pipes shall have specified minimum mechanical properties, including minimum yield strength, minimum tensile strength, and minimum elongation. The mechanical properties shall be determined by testing the pipes in accordance with the relevant standards.
4. Dimensions and tolerances: The pipes shall have specified dimensions and tolerances for their outer diameter, wall thickness, and length. The dimensions and tolerances shall be in accordance with the relevant standards.
5. Testing: The pipes shall be tested to ensure that they meet the specified requirements for their chemical composition, mechanical properties, dimensions, and tolerances. The testing shall include non-destructive testing, hydrostatic testing, and other tests as required by the relevant standards.
6. Marking and certification: The pipes shall be marked with the manufacturer’s name or trademark, the grade of steel, the dimensions, and other relevant information. The manufacturer shall also provide a certificate of compliance with the relevant standards.
By meeting these specific requirements, seamless steel pipes manufactured according to EN 10216-1 can be used in a wide range of pressure applications, including those at high temperatures.
