ASTM A213 TP316L Stainless Steel U-Tubes for Boilers
ASTM A213 TP316L Stainless Steel U-Tubes for Boilers
ASTM A213 TP316L U-tubes are seamless low-carbon stainless steel tubes commonly used in boilers and heat exchangers due to their excellent corrosion resistance, high-temperature strength, and weldability. Their key characteristics include: excellent corrosion resistance (especially in chloride environments) and pitting corrosion resistance; high tensile strength and creep strength at high temperatures; and good mechanical properties, such as high pressure and high temperature resistance. The "L" designation indicates its low carbon content, preventing carbide precipitation during welding and thus maintaining the tube's corrosion resistance and mechanical properties.
What are the ASTM standards for 316 stainless steel?
The manganese content of both 316 and 316L stainless steel sheets shall not exceed 2.0%, silicon content shall not exceed 0.75%, and phosphorus content shall not exceed 0.045%. The sulfur content of both 316 and 316L shall not exceed 0.03%, the chromium content shall be between 16.00% and 18.00%, and the molybdenum content shall be between 2.0% and 3.0%.
ASTM A213 TP316L Stainless Steel U-Tubes for Boilers and Heat Exchangers
This product is a high-performance U-tube designed specifically for boilers, superheaters, heat exchangers, and condensers operating in high-pressure, high-temperature, and corrosive environments. Manufactured from ASTM A213 TP316L low-carbon austenitic stainless steel, it offers excellent corrosion resistance, high-temperature strength, and superior formability and weldability, making it a key component for improving thermal efficiency and ensuring long-term equipment reliability.
| ASTM A213 TP316L Chemical Composition (%) | |||||||
| C | Mn | P | S | Si |
Cr |
Ni |
Mo |
|
≤ 0.35% |
≤ 2.00% |
≤ 0.045% | ≤ 0.03% | ≤ 1.00% | 16%-18% | 10.00%-14.00% | 2.00%-3.00% |
Mechanical Properties
| Tensile Strength | Yield Strength | Elongation (in 50mm) | Hardness |
| ≥485 MPa | ≥170 MPa | ≥35% | ≤217 HB (Brinell) |
Available Size Range
Outer Diameter (OD): Standard range is 9.53 mm (3/8 inch) to 25.4 mm (1 inch); other sizes are available upon request.
Wall Thickness (WT): Standard range is 0.8 mm to 2.5 mm (corresponding to different outer diameters).
U-Bend Radius (R): Customized according to customer design and pipe bundle layout.
Straight Section Length: Precisely cut according to customer drawings.
Why Choose Our 316L U-Bends?
Full Traceability: Every batch of materials comes with a complete material certificate, ensuring compliance with standards and specifications.
Superior Craftsmanship: Professional bending technology ensures defect-free U-bends, extending equipment lifespan.
Customized Solutions: We can provide precise customized production based on your specific drawings and technical requirements.
Global Certifications: Our products comply with international standards such as ASTM, ASME, and EN, serving customers worldwide.
Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com
