Steel Tubing

Metalsin Tech supplies welded stainless steel sanitary tubes made in accordance with ASTM A270. These tubes are usually made from a variety of austenitic, or ferritic/austenitic duplex stainless steel grades. The welded stainless steel sanitary tubing shall be made using an automated welding process with no addition of filler metal during the welding process. These tubes are intended for use …

Key Characteristics of HSS Tubes HSS (Hollow Structural Sections) tubes are a type of metal profile used primarily in construction and structural applications. These tubes are hollow, with consistent wall thickness throughout, and come in a variety of shapes, such as square, rectangular, circular (round), and elliptical. They are usually made from carbon steel, stainless steel, aluminum, copper, or other …

Stainless steel 310S tubes refers to welded (ASTM A249) or seamless (ASTM A213) boiler, superheater, heat-exchanger and condenser tubes made from austenitic stainless steel TP310S. It is a modified version from 304 stainless steel with increased chromium and nickel for improved strength and better oxidation resistance at elevated temperatures. The primary feature of TP310S tubes is their excellent oxidation and …

The 904L seamless tubing usually refers to seamless boiler, superheater, and heat exchanger tubes made from super austenitic stainless steel UNS N08904 in accordance with ASTM A213 (ASME SA-213). 904L (UNS N08904) is a high corrosion-resistant austenitic stainless steel alloy with the nominal composition 44Fe-25Ni-21Cr-Mo. It offers exceptional resistance to general and pitting corrosion, especially in sulfuric and phosphoric acid …

The ASTM A213 T9 seamless tubing is a typical heat-resistant ferritic steel boiler, superheater, and heat-exchanger tube, which has the nominal composition 9Cr-1Mo and UNS number K90941. It is also known as 9Cr-1Mo tubing. These tubes are widely used in oil refineries, chemical industries, and fossil or nuclear power plants. The main advantage of 9Cr-1Mo steel is the improved stress …

Chemical Composition Requirements ASTM A213 TP321 seamless tubes are a series of seamless boiler, superheater and heat exchanger tubes made from titanium-stabilized austenitic stainless steel 321. TP321 contains additional titanium to stabilize the carbon, improving its resistance to sensitization (the formation of chromium carbides) and subsequent intergranular corrosion in high-temperature environments. Compared to TP304 tubing, it exhibits improved corrosion resistance …

ASTM A789 is a standard specification for seamless and welded ferritic/austenitic stainless steel tubing, commonly known as duplex stainless steel. UNS S31803 and S32205 are two very commonly used grades under this specification. These tubes, either furnished in average wall thickness or minimum wall thickness, are manufactured for services requiring general corrosion resistance at temperatures usually no greater than 600°F …

Sizes & Wall Thicknesses Metalsin Tech supplies seamless and welded austenitic stainless steel feedwater heater tubes, which are manufactured in accordance with ASTM A688. These tubes may be furnished in straight length or be bent into the form of U-tubes for application in tubular feedwater heaters. The tubing sizes covered shall be 5/8″ to 1″ [15.9 mm to 25.4 mm] …

Metalin Tech supplies TP316 and TP316L welded austenitic stainless steel boiler, superheater, heat exchanger, and condenser tubes, which are manufactured in accordance with ASTM A249 (identical with ASME SA-249). Among the various grades specified under this standard, TP316 and TP316L are widely used due to their excellent corrosion resistance, high-temperature strength, and good weldability. Designated with nominal composition of 16Cr-12Ni-2Mo, …

ASTM A249 TP304/304L welded tubes are austenitic stainless steel tubes that meet the specifications of the ASTM A249 standard. These tubes are designed for high-temperature and high-corrosion applications such as in boilers, superheaters, heat exchangers, and condensers. TP304 and TP304L are the primary grades used accounting for more than 80% of the austenitic stainless steel production. ASTM A249 TP304 has …

The ASTM A249 tubes are nominal-wall-thickness welded tubes and heavily cold-worked welded tubes made from a series of austenitic stainless steels. These tubes are primarily used for the fabrication of boilers, superheaters, heat exchangers, or condensers. ASTM A249 is identical with ASME SA-249. The tubing sizes and thicknesses usually furnished to this standard are 1/8″ [3.2 mm] in inside diameter …

ASTM A213 T22 seamless tubes are a specific type of alloy steel tube designed for high temperature service, commonly used in power plants for the fabrication of steam line boilers, superheaters, reheaters, heat exchangers, as well as headers (to distribute steam or water to various parts of the boiler). Designated as UNS K21590 with nominal composition of 2.25Cr-1Mo, Grade T22 …