EN 10217-2 P265GH Welded Steel Tube: Electric Welded Alloy Steel Tubes For Elevated Temperature Properties

Introduction

EN 10217-2 P265GH is a European standard for electric welded alloy steel tubes used in applications requiring elevated temperature properties. This specification outlines the material, key features, chemical composition, mechanical properties, steel grade, application, and possible alternative grades for P265GH welded steel tubes.

Material and Specification

EN 10217-2 P265GH specifies the requirements for electric welded non-alloy and alloy steel tubes with specified elevated temperature properties. These tubes are intended for use in pressure purposes at elevated temperatures.

The specification covers tubes with circular cross-sections, made from either non-alloy or alloy steel. The manufacturing process involves electric welding and subsequent heat treatment.

Key Features

• Elevated temperature properties: P265GH tubes are designed to withstand high temperatures, making them suitable for applications in industries such as power generation, petrochemicals, and refineries.
• Weldability: These tubes exhibit excellent weldability, allowing for easy fabrication and installation.
• Durable and reliable: P265GH tubes are known for their durability and reliability, ensuring long-term performance in demanding environments.
• Compliance with European standards: EN 10217-2 ensures that the tubes meet the necessary quality and safety requirements for their intended applications.

Chemical Composition

Mechanical Properties 

Steel Grade

EN 10217-2 P265GH is a steel grade that falls under the European standard for welded steel tubes. It is widely used due to its excellent elevated temperature properties and weldability.

Application

P265GH welded steel tubes find application in various industries where elevated temperature properties are required. Some common applications include:

• Power plants: Piping systems for steam boilers, superheaters, and heat exchangers.
• Petrochemical industry: Tubes for high-temperature processes, such as cracking furnaces and reformers.
• Refineries: Piping systems for fluid transportation at elevated temperatures.
• Chemical industry: Tubes used in processes involving corrosive substances at high temperatures.

Possible Alternative Grades

While P265GH is a widely used steel grade, there are alternative grades available that may suit specific requirements. Some possible alternative grades include:

• ASTM A106 Grade B: A carbon steel grade commonly used for high-temperature applications.
• ASTM A335 P11: A low alloy steel grade suitable for elevated temperature service.
• DIN 17175 13CrMo44: A chromium-molybdenum alloy steel grade used for high-temperature applications.

It is important to consult with engineers and experts to determine the most suitable alternative grade based on specific application requirements.

In conclusion, EN 10217-2 P265GH welded steel tubes offer excellent elevated temperature properties, weldability, and durability. These tubes find extensive use in various industries, including power generation, petrochemicals, and refineries. Understanding the material, key features, chemical composition, mechanical properties, steel grade, application, and possible alternative grades is crucial for selecting the appropriate steel tubes for specific applications.

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