EN 10217-6 P215NL P265NL Welded Steel Tubes: Submerged Arc Welded Non-Alloy Steel Tubes For Pressure Purposes

Material and Specification

EN 10217-6 is a European standard that specifies the technical delivery conditions for welded steel tubes for pressure purposes. Specifically, it covers submerged arc welded non-alloy steel tubes. The material grades covered by this standard are P215NL and P265NL.

Key Features

The key features of EN 10217-6 P215NL and P265NL welded steel tubes are as follows:

1. Pressure Purposes: These tubes are designed to withstand high-pressure environments, making them suitable for various industrial applications.
2. Non-Alloy Steel: The tubes are made from non-alloy steel, which ensures good weldability and high resistance to pressure.
3. Submerged Arc Welded: The welding process used for these tubes is submerged arc welding, which provides excellent joint strength and integrity.
4. Precision Manufacturing: EN 10217-6 ensures strict manufacturing tolerances and dimensional accuracy, resulting in reliable and consistent tubes.
5. Wide Range of Sizes: These tubes are available in a wide range of sizes, allowing for flexibility in design and application.

Chemical Composition

The chemical composition of EN 10217-6 P215NL and P265NL welded steel tubes is as follows:

Mechanical Properties

The mechanical properties of EN 10217-6 P215NL and P265NL welded steel tubes are as follows:

Steel Grade

The steel grades covered by EN 10217-6 for welded steel tubes are P215NL and P265NL. These grades are specifically designed for pressure purposes and offer excellent weldability and resistance to pressure.

Application

EN 10217-6 P215NL and P265NL welded steel tubes find application in various industries where high-pressure environments are encountered. Some common applications include:

1. Boilers: These tubes are used in the construction of boilers for power generation and industrial processes.
2. Pressure Vessels: They are suitable for manufacturing pressure vessels used in chemical plants, oil refineries, and other industrial settings.
3. Pipelines: EN 10217-6 tubes are used for the transportation of fluids and gases in pipelines.
4. Heat Exchangers: They are employed in the construction of heat exchangers for efficient heat transfer in various systems.

Possible Alternative Grades

While EN 10217-6 P215NL and P265NL are specifically designed for pressure purposes, there are alternative grades available that may suit specific requirements. Some possible alternative grades include:

1. P235GH: This grade offers similar weldability and pressure resistance, making it a suitable alternative for certain applications.
2. P355NH: With higher tensile strength and improved impact energy, P355NH is an alternative grade suitable for more demanding pressure environments.

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