EN 10217-1 is a fundamental European standard that specifies the technical delivery conditions for welded steel tubes and pipes intended for pressure purposes. This standard falls under the broader umbrella of the EN 10217 series, which covers various types of weld seams and material qualities.
The tubes manufactured according to EN 10217-1 are defined by their **submerged arc welding (SAW)** process. This method involves forming the tube from a steel plate or strip and then welding the seam using an arc submerged under a layer of fusible flux. This process is highly regarded for producing robust, high-quality longitudinal welds with excellent integrity, making it suitable for demanding high-pressure applications.
A key characteristic of EN 10217-1 is its focus on **non-alloy quality steels**. The standard provides a defined list of steel grades with specified chemical compositions and mechanical properties, such as yield strength, tensile strength, and impact energy. These properties ensure the tubes can safely contain internal pressures and withstand mechanical stresses. Furthermore, the standard mandates rigorous testing and inspection procedures, including non-destructive testing of the weld seam, hydrostatic testing, and thorough dimensional checks to guarantee conformity and safety.
The primary application for these tubes is in the construction of **pressure vessels, boilers, and heat exchangers**. They are engineered to convey steam, water, oil, gas, and other fluids under significant pressure and often at elevated temperatures. Their use is critical in sectors such as power generation (including conventional fossil fuel and nuclear plants), petrochemical and hydrocarbon processing, and various heavy industrial plants.
In summary, EN 10217-1 represents a critical quality benchmark. It provides manufacturers, engineers, and end-users with the assurance that the welded steel tubes comply with stringent European norms for material quality, manufacturing process, and performance under pressure, ensuring safety and reliability in critical industrial systems.
| Standard | Grade | Chemical Composition(max)% | Mechanical Properties(min) | |||||
| C | Si | Mn | P | S | Tensile Strength(Mpa) | Yield Strength(Mpa) | ||
| EN10217-1 | P195TR1 | 0.13 | 0.35 | 0.70 | 0.025 | 0.020 | 320 | 320 |
| P195TR2 | 0.13 | 0.35 | 0.70 | 0.025 | 0.020 | 320 | 320 | |
| P235TR1 | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 360 | 360 | |
| P235TR2 | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 360 | 360 | |
| P265TR1 | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 410 | 410 | |
| P265TR2 | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 410 | 410 |
