EN 10217-6 P265NL Welded Submerged Arc Welded Non Alloy Steel Tubes For Pressure Purposes
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Model Number:EN 10217-6
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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:
- Pressure Purposes: These tubes are designed to withstand high-pressure environments, making them suitable for various industrial applications.
- Non-Alloy Steel: The tubes are made from non-alloy steel, which ensures good weldability and high resistance to pressure.
- Submerged Arc Welded: The welding process used for these tubes is submerged arc welding, which provides excellent joint strength and integrity.
- Precision Manufacturing: EN 10217-6 ensures strict manufacturing tolerances and dimensional accuracy, resulting in reliable and consistent tubes.
- 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:
| Element | P215NL Composition (%) | P265NL Composition (%) |
|---|---|---|
| Carbon (C) | 0.16 max | 0.20 max |
| Manganese (Mn) | 1.20 - 1.50 | 1.40 - 1.70 |
| Phosphorus (P) | 0.025 max | 0.025 max |
| Sulfur (S) | 0.020 max | 0.020 max |
| Silicon (Si) | 0.10 - 0.35 | 0.10 - 0.40 |
| Nickel (Ni) | - | - |
| Chromium (Cr) | - | - |
| Molybdenum (Mo) | - | - |
| Copper (Cu) | - | - |
| Other | - | - |
Mechanical Properties
The mechanical properties of EN 10217-6 P215NL and P265NL welded steel tubes are as follows:
| Property | P215NL | P265NL |
|---|---|---|
| Tensile Strength (MPa) | 360 - 480 | 410 - 530 |
| Yield Strength (MPa) | 215 min | 255 min |
| Elongation (%) | 21 min | 20 min |
| Impact Energy (J) | 27 min at -50°C | 27 min at -50°C |
| Hardness (HB) | - | - |
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:
- Boilers: These tubes are used in the construction of boilers for power generation and industrial processes.
- Pressure Vessels: They are suitable for manufacturing pressure vessels used in chemical plants, oil refineries, and other industrial settings.
- Pipelines: EN 10217-6 tubes are used for the transportation of fluids and gases in pipelines.
- 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:
- P235GH: This grade offers similar weldability and pressure resistance, making it a suitable alternative for certain applications.
- P355NH: With higher tensile strength and improved impact energy, P355NH is an alternative grade suitable for more demanding pressure environments.
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EN 10217-6 P265NL Welded Submerged Arc Welded Non Alloy Steel Tubes For Pressure Purposes
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