TU 14-3-460-2003 Stainless Seamless Steel Tubes for High-Pressure Boiler and Pipelines

Material Specification

The TU 14-3-460-2003 is a standard that specifies the requirements for stainless seamless steel tubes used in high-pressure boiler and pipeline applications. These tubes are designed to withstand elevated pressures and temperatures, making them suitable for use in demanding industrial environments.

Key Features

The stainless seamless steel tubes covered by this standard offer several key features that make them highly suitable for high-pressure boiler and pipeline applications:

1. Corrosion Resistance: These tubes are made from stainless steel, which exhibits excellent resistance to corrosion, even in aggressive environments.

2. High-Strength: The materials used in these tubes provide exceptional tensile and yield strength, ensuring they can withstand high pressures without deformation or failure.

3. Seamless Construction: The tubes are manufactured using a seamless process, eliminating the presence of any welded seams. This seamless design enhances their reliability and reduces the risk of leakage.

4. Prolonged Service Life: The resistance to corrosion and high-strength properties of these tubes contribute to their prolonged service life, reducing maintenance needs and overall costs.

Chemical Composition

The chemical composition of the stainless seamless steel tubes, as specified in TU 14-3-460-2003, is presented in the following table:

Mechanical Properties

The mechanical properties of the stainless seamless steel tubes, as per TU 14-3-460-2003, are outlined in the following table:

Steel Grade

The steel grade specified in TU 14-3-460-2003 for these stainless seamless steel tubes is Grade 12X18H10T. This grade is characterized by its corrosion resistance, high tensile strength, and excellent heat resistance properties.

Application

TU 14-3-460-2003 stainless seamless steel tubes find wide application in high-pressure boiler and pipeline systems across various industries. These tubes are commonly used in:

• Power plants
• Petrochemical refineries
• Chemical processing plants
• Oil and gas pipelines
• Heat exchangers

The tubes' ability to withstand high pressures and temperatures, coupled with their corrosion resistance, makes them well-suited for these demanding applications.

Possible Alternative Grades

While Grade 12X18H10T is the specified steel grade in TU 14-3-460-2003, there are several alternative grades that can be used depending on specific requirements. Some common alternative grades include:

• 10Cr17
• 08X18H10
• 06Cr19Ni10
• 321H
• 347H

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