Brief:ASTM A790 Grade UNS S32760 duplex stainless steel pipe is a high-performance super duplex stainless steel pipe designed for extreme corrosion and high-strength applications. This grade features a balanced ferritic-austenitic microstructure (approximately 40–50% ferrite / 50–60% austenite) with added tungsten and copper, which further enhance its resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in aggressive environments. UNS S32760 is available in seamless and welded constructions, offering superior performance compared to standard duplex grades like S31803 and S32205.
Brief:ASTM A213 TP316L is a seamless austenitic stainless steel tube specifically designed for high-temperature and high-pressure service in boilers, superheaters, and heat exchangers. The "L" grade indicates low carbon content (≤0.035%), which provides superior resistance to intergranular corrosion after welding. The addition of molybdenum (2.0-3.0%) enhances corrosion resistance, particularly against chlorides and other aggressive media.
Brief:ASTM A270 Grade TP316L stainless steel sanitary tubing is specifically designed for high-purity and corrosive-resistant applications in the pharmaceutical, biotechnology, food and beverage, and cosmetic industries. Manufactured in accordance with ASTM A270 standards, this tubing offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, thanks to its low carbon content (0.03% max) and molybdenum addition.
Brief:ASTM A554 Grade 304 Welded Stainless Steel Mechanical Square Tube is a cold-formed, high-frequency welded (HFW) austenitic stainless steel tube designed for mechanical, architectural, and decorative applications. As the most widely specified grade under the ASTM A554 standard, it offers an excellent combination of corrosion resistance, mechanical strength, formability, and surface finish — all at a cost-effective price point.
Brief:The ASTM A358 TP304L (UNS S30403) is an Electric Fusion Welded (EFW) austenitic stainless steel pipe designed for high-temperature and general corrosive service. The "L" grade indicates a low carbon content (≤0.03%), providing superior resistance to intergranular corrosion after welding without requiring post-weld heat treatment. This standard covers Class 1 through Class 5 pipe based on radiographic examination requirements, offering flexibility for various application criticality levels.
Brief:ASTM A312 Grade TP304L pipe is a low-carbon austenitic stainless steel pipe widely used for its excellent corrosion resistance, weldability, and versatility. The “L” grade indicates reduced carbon content, which helps prevent intergranular corrosion after welding, making it especially suitable for fabricated piping systems.
Brief:ASTM A928 Grade UNS S31803 duplex stainless steel pipe is a high-strength electric-fusion-welded (EFW) duplex stainless steel pipe designed for corrosive and offshore service environments. Commonly known as Duplex 2205, features a balanced ferritic-austenitic microstructure (approximately 40–50% ferrite / 50–60% austenite), delivering high strength and excellent resistance to chloride-induced stress corrosion cracking (SCC), pitting, and crevice corrosion.
Brief:ASTM A312 Grade TP321 (UNS S32100) stainless steel pipe is a titanium-stabilized austenitic stainless steel pipe designed for high-temperature service and corrosion resistance applications. It offers excellent resistance to intergranular corrosion and improved performance in environments where exposure to elevated temperatures is continuous. Available in seamless (SMLS), straight-seam welded, or heavily cold worked welded forms.
