TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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The GB/T 28413 standard provides guidelines for welded carbon steel tubes used specifically for boilers and heat exchangers. These tubes are designed to withstand high temperatures and pressures in industrial applications. The standard focuses on the material, specification, key features, chemical composition, mechanical properties, steel grade, application, and possible alternative grades.
The material used in the construction of these tubes is carbon steel, a popular choice due to its excellent mechanical properties and high heat transfer efficiency. Carbon steel has a high strength-to-weight ratio and can withstand extreme temperatures and pressures, making it ideal for boiler and heat exchanger applications.
The specification outlined in GB/T 28413 ensures the proper construction and dimensions of these welded steel tubes. It covers aspects such as the tube's outer diameter, wall thickness, length, and tolerances. Compliance with this specification ensures the tubes meet the required industry standards, enhancing their reliability and performance.
The welded carbon steel tubes for boilers and heat exchangers, as per GB/T 28413, possess several noteworthy features. These features contribute to their suitability for demanding environments and high-performance applications:
High temperature resistance: These tubes are designed to withstand elevated temperatures commonly encountered in boilers and heat exchangers.
Pressure resistance: The tubes are capable of withstanding high pressure conditions, ensuring reliable operation and ety.
Corrosion resistance: The carbon steel used in these tubes is specially treated to resist corrosion, extending the lifespan of the tubes and reducing maintenance costs.
Efficient heat transfer: The excellent heat transfer properties of carbon steel facilitate the efficient transfer of heat within boilers and heat exchangers, improving overall system performance.
The chemical composition of the welded carbon steel tubes for boilers and heat exchangers is crucial to their performance and durability. The following table presents the typical chemical composition of these tubes:
| Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.17 - 0.24 |
| Silicon (Si) | 0.17 - 0.37 |
| Manganese (Mn) | 0.70 - 1.00 |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.030 max |
Note: The exact chemical composition may vary depending on the specific steel grade.
The mechanical properties of the welded carbon steel tubes play a crucial role in determining their strength, ductility, and overall performance. The following table presents the typical mechanical properties of these tubes:
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 410 - 530 |
| Yield Strength (MPa) | 225 min |
| Elongation (%) | 22 min |
Note: The mechanical properties mentioned above are typical values and may vary depending on the specified steel grade and production process.
The steel grade specified for the welded carbon steel tubes for boilers and heat exchangers under GB/T 28413 includes GB/T 3087 20#, 20G, 20MnG, and other applicable grades. These steel grades are carefully selected for their compatibility with high-temperature and high-pressure environments.
These tubes find extensive use in industrial applications, including power plants, chemical plants, refineries, and other facilities involving energy generation and heat transfer. By efficiently transferring heat and withstanding demanding conditions, these welded carbon steel tubes contribute to the reliable operation of boilers and heat exchangers.
While GB/T 28413 specifies the steel grades suitable for the manufacture of welded carbon steel tubes for boilers and heat exchangers, there are alternative grades worth considering based on specific requirements. Some possible alternative grades include ASTM A192, ASTM A210, and EN 10216-2 P235GH, among others. It is essential to consult industry standards and specifications to determine the appropriate alternative grade for a given application.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.