
TU 14-3R-55 20X Carbon Seamless Steel Pipes For Steam Boilers And Pipelines
Material
TU 14-3R-55 20X carbon seamless steel pipes are specifically designed for use in steam boilers and pipelines. These pipes are known for their durability, high strength, and ability to withstand high temperatures and pressures, making them ideal for demanding industrial applications.
Specification
These seamless steel pipes are manufactured according to stringent industry standards to ensure quality and performance. The specifications typically include:
- Outer Diameter: Varies based on application requirements
- Wall Thickness: Customizable to meet specific pressure and temperature needs
- Length: Available in standard and custom lengths
- Ends: Plain, beveled, or threaded
Key Features
- High Temperature Resistance: Suitable for use in environments with elevated temperatures.
- Corrosion Resistance: Offers protection against corrosion, extending the lifespan of the pipes.
- High Strength: Capable of withstanding high pressure, making them ideal for steam boilers and pipelines.
- Seamless Construction: Ensures uniformity and reduces the risk of leaks.
Chemical Composition
The chemical composition of TU 14-3R-55 20X carbon seamless steel pipes is crucial for their performance. Below is a typical composition table:
Element | Composition (%) |
Carbon (C) | 0.17 - 0.24 |
Silicon (Si) | 0.17 - 0.37 |
Manganese (Mn) | 0.35 - 0.65 |
Phosphorus (P) | ≤ 0.035 |
Sulfur (S) | ≤ 0.035 |
Chromium (Cr) | 0.15 - 0.25 |
Nickel (Ni) | ≤ 0.30 |
Copper (Cu) | ≤ 0.30 |
Mechanical Properties
The mechanical properties of these pipes are essential for ensuring their suitability for high-pressure and high-temperature applications. The table below outlines the typical mechanical properties:
Property | Value |
Tensile Strength | 490 - 630 MPa |
Yield Strength | ≥ 245 MPa |
Elongation | ≥ 20% |
Impact Energy | ≥ 27 J at 20°C |
Steel Grade
The steel grade for these pipes is 20X, which is a carbon steel grade known for its excellent mechanical properties and suitability for high-temperature applications.
Application
TU 14-3R-55 20X carbon seamless steel pipes are primarily used in:
- Steam Boilers: For transporting steam and hot water under high pressure.
- Pipelines: In industries such as oil and gas, chemical processing, and power generation.
Possible Alternative Grades
While 20X is a popular choice, there are alternative grades that may be suitable depending on specific requirements:
- 15Mo3: Known for its excellent heat resistance.
- P265GH: Often used in pressure vessels and boilers.
- A106 Grade B: Commonly used in high-temperature service.






TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and
trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and
credibility among domestic and foreign customers.
The company's production plant covers an area of over 10,000 square meters, with an annual production
capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.
The group holds shares in more than ten domestic production entities, whose main products include
seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.
Over the past 30 years, the company has been gradually developing new technologies and materials to meet
the growing needs of customers and various diversified needs, exporting to more than 56 countries and still
increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.
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.