TU 14-3R-55 20 Carbon Seamless Steel Pipe Boiler Tube For Steam Boiler And Pipelines
TU 14-3R-55 20 Carbon Seamless Steel Pipe Boiler Tube For Steam Boiler And Pipelines
Material and Specification
The TU 14-3R-55 20 Carbon Seamless Steel Pipe is specifically designed for use as a boiler tube in steam boilers and pipelines. It is made from carbon steel and follows the TU 14-3R-55 standard. The material is seamless, ensuring a smooth and efficient flow of steam or other fluids.
Key Features
The TU 14-3R-55 20 Carbon Seamless Steel Pipe offers several key features that make it suitable for use in steam boilers and pipelines:
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High Strength: The carbon steel material used in this pipe provides excellent strength and durability, ensuring long-lasting performance in demanding conditions.
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Corrosion Resistance: The pipe is designed to resist corrosion, making it suitable for use in high-temperature and high-pressure environments.
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Seamless Design: The seamless construction of this pipe eliminates the risk of leaks and ensures a smooth flow of fluids, improving overall efficiency.
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Versatile Application: The TU 14-3R-55 20 Carbon Seamless Steel Pipe is suitable for various applications, including steam boilers and pipelines, where high strength and corrosion resistance are required.
Chemical Composition
The chemical composition of the TU 14-3R-55 20 Carbon Seamless Steel Pipe is as follows:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.17-0.24 |
| Silicon (Si) | 0.17-0.37 |
| Manganese (Mn) | 0.70-1.00 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Chromium (Cr) | ≤ 0.25 |
| Nickel (Ni) | ≤ 0.30 |
| Copper (Cu) | ≤ 0.25 |
| Molybdenum (Mo) | ≤ 0.08 |
Mechanical Properties
The mechanical properties of the TU 14-3R-55 20 Carbon Seamless Steel Pipe are as follows:
| Property | Value |
|---|---|
| Tensile Strength | 410-550 MPa |
| Yield Strength | ≥ 245 MPa |
| Elongation | ≥ 24% |
| Hardness (HB) | ≤ 197 |
Steel Grade
The TU 14-3R-55 20 Carbon Seamless Steel Pipe belongs to the 20 steel grade, which is a low carbon steel with good weldability and formability. It is commonly used in the manufacturing of boilers, pressure vessels, and pipelines.
Application
The TU 14-3R-55 20 Carbon Seamless Steel Pipe is primarily used in steam boilers and pipelines. Its high strength, corrosion resistance, and seamless design make it suitable for transporting steam and other fluids in high-temperature and high-pressure environments. It is also used in various industrial applications where strength and durability are required.
Possible Alternative Grades
While the TU 14-3R-55 20 Carbon Seamless Steel Pipe is a reliable choice for steam boilers and pipelines, there are alternative grades available that may suit specific requirements. Some possible alternative grades include:
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20G: This grade offers similar properties to the TU 14-3R-55 20 and is commonly used in the manufacturing of boilers and pressure vessels.
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20MnG: This grade contains a higher percentage of manganese, providing improved strength and toughness. It is suitable for applications requiring higher mechanical properties.
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20CrMo: This grade contains chromium and molybdenum, offering enhanced corrosion resistance and high-temperature strength. It is often used in applications where resistance to oxidation and high-temperature environments is crucial.


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.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
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.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
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.
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