Knowledge

SA789 UNS S31803 is a standard, nitrogen-enhanced duplex stainless steel (approx. 50% austenite/50% ferrite) commonly known as Duplex 2205 or DIN 1.4462. Its chemical composition, optimized for corros

ASTM A789 is the standard specification for seamless or welded ferritic/austenitic (duplex) stainless steel tubing designed for general corrosion service, with particular application in heat exchanger

Both ASTM A790 and A789 standards cover duplex (ferritic/austenitic) stainless steels; however, the primary distinction between the two lies in their respective fields of application: A790 applies to

ASTM A790 UNS S31803 is a duplex stainless steel tubing containing 22% chromium, available in both seamless and welded forms. It typically undergoes pickling and annealing treatments to enhance its co

ASTM A790 S32205 is a duplex stainless steel (22% Chromium – 5% Nickel – 3% Molybdenum – Nitrogen alloy) seamless and welded steel pipe manufactured under U.S. standards; it is commonly referred to as

ASTM A213 TP347 is a niobium-stabilized austenitic stainless steel seamless tube designed for high-temperature, high-pressure, and highly corrosive environments, particularly in boilers and heat excha

ASTM A213 TP317L is a low-carbon, molybdenum-bearing austenitic stainless steel U-bend tube designed for high-corrosion, high-temperature heat exchanger applications, such as chemical processing and d

ASTM A213 is the specification for seamless ferritic and austenitic boiler, superheater and heat-exchanger tubes for high-temperature, high-pressure service, with ASME SA213 as the code edition. This

ASTM A 565 Grade 616 is a high-strength martensitic stainless steel—also known as AISI 422 or UNS S42200—specifically designed for high-temperature service conditions up to 1200°F (649°C), and is comm

X22CrMoV12-1 (material number 1.4923) is a martensitic creep-resisting stainless steel commonly used for steam turbine blades, rotors, and high-temperature bolts up to 600°C. Equivalent standards incl

For ASTM A213 Seamless Tubes with diameters less than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness，mechanical property requirements won’t apply. Tube with other dimensions ma

ASTM A213 TP309S stainless steel tubing is a high-alloy, seamless austenitic material specifically designed for high-temperature applications ,up to approximately 1095°C (2000°F),within heat exchanger