Seamless boiler tubes are critical components in high-pressure and high-temperature applications, ensuring efficient heat transfer and structural integrity in industrial boilers. These tubes are manufactured without a welded seam, providing superior strength, durability, and resistance to corrosion and high pressure. As a leading supplier and wholesaler of seamless boiler tubes, we offer worldwide shipping at highly competitive prices, complete with material test certification.
Specifications of Seamless Boiler Tubes
Seamless boiler tubes are manufactured in compliance with various international standards to meet the demands of different industrial applications. Below are some of the key specifications:
Standards & Grades
- ASTM Standards: ASTM A192, ASTM A210, ASTM A213, ASTM A335
- ASME Standards: ASME SA192, ASME SA210, ASME SA213, ASME SA335
- EN Standards: EN 10216-2 (P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10)
- DIN Standards: DIN 17175 (St35.8, St45.8, 15Mo3, 13CrMo44)
- JIS Standards: JIS G3461 (STB340, STB410, STB510), JIS G3462 (STBA12, STBA13, STBA22)
Dimensional Range
- Outer Diameter (OD): 10mm – 609mm
- Wall Thickness: 1mm – 50mm
- Length: 3m – 12m (Custom lengths available on request)
Manufacturing Process
- Hot Finished Seamless (HFS)
- Cold Drawn Seamless (CDS)
- Heat Treatment (Normalizing, Annealing, Quenching & Tempering)
Mechanical & Chemical Properties
Seamless boiler tubes are designed to withstand extreme conditions. The key properties include:
- High Tensile Strength: Ensures durability in high-pressure environments.
- Corrosion Resistance: Protects against oxidation and chemical degradation.
- High Thermal Conductivity: Enhances heat transfer efficiency.
- Impact Resistance: Withstands thermal expansion and contraction cycles.
Material Selection for Seamless Boiler Tubes
Material selection plays a crucial role in determining the performance and longevity of seamless boiler tubes. Here are some common materials used:
Carbon Steel Boiler Tubes
- ASTM A192, A210, DIN 17175 St35.8, St45.8
- High strength and good thermal conductivity.
- Commonly used in low- and medium-pressure boiler applications.
Alloy Steel Boiler Tubes
- ASTM A335 (P1, P2, P5, P9, P11, P22, P91, P92), EN 10216-2 (10CrMo9-10, 13CrMo4-5)
- Improved resistance to high temperatures and pressures.
- Ideal for superheater and reheater tubes in power plants.
Stainless Steel Boiler Tubes
- ASTM A213 (TP304, TP316, TP321, TP347, TP410)
- Excellent corrosion resistance and oxidation resistance.
- Preferred for high-temperature and aggressive environments.
Applications of Seamless Boiler Tubes
Seamless boiler tubes are widely used across various industries due to their ability to withstand high temperatures and pressures. Some of the key applications include:
1. Power Plants & Thermal Stations
- Used in high-pressure boilers, superheaters, and reheaters.
- Ensures efficient heat transfer and steam generation.
2. Oil & Gas Industry
- Used in heat exchangers, condensers, and pressure vessels.
- Withstands extreme conditions in offshore and onshore applications.
3. Petrochemical & Chemical Industries
- Used in process heaters and steam piping systems.
- Resistant to chemical corrosion and high-temperature reactions.
4. Industrial Boilers & Steam Generation
- Utilized in food processing, paper mills, and textile industries.
- Provides consistent steam and heat for various manufacturing processes.
5. Marine & Shipbuilding Industry
- Used in marine boilers and heat exchangers for ships and submarines.
- Offers excellent resistance to high humidity and saline environments.
Buy Boiler Tube: Why Choose Us as Your Seamless Boiler Tube Supplier?
- Wide Range of Materials & Specifications: We offer carbon steel, alloy steel, and stainless steel tubes to suit every application.
- Competitive Pricing: As a leading wholesaler, we provide cost-effective solutions without compromising quality.
- Global Shipping: We deliver seamless boiler tubes to customers worldwide with reliable logistics support.
- Quality Assurance: All products come with Material Test Certification (MTC) and comply with international standards.
- Customization Available: We offer tubes in various sizes, wall thicknesses, and custom lengths as per client requirements.
Contact Us
For inquiries about seamless boiler tubes, pricing, and bulk orders, feel free to contact us. We ensure high-quality products with prompt delivery and technical support for your industrial needs.