ASTM A358 TP316L Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications

ASTM A358 TP316L Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications

With over 35 years of industrial expertise​ and a global supply network spanning 85 countries, YUHONG Group is a leading specialist in advanced stainless steel tubing solutions. We are dedicated to engineering products that meet the most stringent international standards for critical applications. Our ASTM A358 TP316L Electric-Fusion-Welded (EFW) Austenitic Stainless Steel Pipe​ exemplifies this commitment, combining superior molybdenum-enhanced corrosion resistance with the reliable, high-integrity construction of the EFW process. Designed for demanding service in chemical processing, marine environments, and high-purity systems, our pipes deliver the durability, safety, and performance required for your most challenging projects. Trust in our experience, quality certifications, and global logistical support for a seamless supply of premium piping components.

Welding Filler Metal Reference for Grade 316L (UNS S31603)

Typical Solution Annealing Requirements for 316L (UNS S31603)

Testing Requirements for 316L (UNS S31603) per ASTM A358

Application Advantages of ASTM A358 TP316L Electric-Fusion-Welded Stainless Steel Pipe

• Excellent Corrosion Resistance, Especially to Chlorides:​ The TP316L grade contains 2-3% Molybdenum, which provides superior resistance to pitting and crevice corrosion in environments containing chlorides (e.g., seawater, chemical brines) compared to standard 304 grades. This makes it ideal for chemical processing and marine applications.
• Cost-Effective for Large Diameter Piping:​ The Electric-Fusion-Welding (EFW) process allows for the economical production of large-diameter pipes (OD 1/2" to 24" as per ASTM A358) that are difficult or very costly to manufacture as seamless tubes, offering a great balance of performance and value for big pipeline projects.
• High Integrity Welded Construction:​ The longitudinal weld seam created by the EFW process is of high quality and consistency. When combined with full solution annealing heat treatment, it results in a pipe with reliable mechanical properties and corrosion resistance along the weld, suitable for pressure applications.
• Suitable for Hygienic and High-Purity Systems:​ The austenitic structure and smooth internal surface (which can be electropolished) make this pipe suitable for industries with high hygiene standards, such as pharmaceutical, food & beverage, and bioprocessing, where cleanability and corrosion resistance are critical.
• Proven Performance to International Standards:​ Manufactured in strict compliance with ASTM A358/ASME SA358, ensuring consistent material quality, dimensions, and performance. This guarantees reliability and simplifies approval for use in global industrial projects.