Steel Tubing

SJZ Metalsin supplies ASTM A213 TP347 and TP347H seamless tubes for heat exchangers, boilers and superheaters. As a modified version of the classic 304 stainless steel, niobium is added to oppose chromium carbide precipitation, which means to stabilize the carbon in TP347 stainless steel. The niobium added has significant importance: Improved resistance to intergranular corrosion at elevated temperatures: Niobium can …

ASTM A213 TP304H and TP316H are the “H Grades” of austenitic stainless steels designed for high-temperature applications. The letter H indicates its higher carbon content as well as the high-temperature service. Seamless tubes made of ASTM A213 TP304H (UNS S30409) and TP316H (UNS 31609) exhibit much better creep strength and creep-rupture strength at elevated temperatures, thus, are widely used for …

Sizes, wall thicknesses, tolerances & applications SJZ Metalsin supplies a series of seamless austenitic stainless steel boiler, superheater and heat exchanger tubes in the material grades of ASTM A213 TP304, TP304L, TP316, and TP316L. The tubing sizes usually are 1/8″ [3.2 mm] in inside diameter to 5″ [127 mm] in outside diameter. They may be furnished in minimum wall thickness …

The ASTM A269 TP304/304L seamless tubing refer to a typical austenitic stainless steel tubing manufactured to meet the specifications outlined in the ASTM A269 standard. It can be made from the stainless steel grade TP304, or its low carbon version TP304L, or dual-certified TP304 & 304L. The tubing shall be produced through seamless processes without any welds or seams such …

ASTM A269 TP316/TP316L seamless tubing refers to a specific type of austenitic stainless steel tubing that conforms to the requirements outlined by ASTM A269 standards. TP316 is a type of austenitic stainless steel characterized by its high chromium (16-18%) and nickel (10-14%) content, along with molybdenum (2-3%) for enhanced corrosion resistance, particularly in chloride-containing environments. TP316L is a low-carbon variant …

ASTM A192 is a specification that covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service. The tubes are commonly used in the construction of power boilers, steam boilers, and high-temperature piping systems. The ASTM A192 tube is manufactured by a hot-working process and is made from carbon-manganese steel, which is designed for heat transfer applications. The tube …

ASTM A179 is a specification that covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and other similar heat transfer applications. ASTM A179 tube is made from a high-quality carbon steel with excellent ductility and toughness. It is cold drawn to precise dimensional tolerances and is annealed to improve their mechanical properties. The tubing is available …

Performance, Size & Wall Thickness ASTM A213 T5 seamless tubes refer to boiler, superheater and heat exchanger tubing that are made from the 5Cr-0.5Mo ferritic steel, a typical member of the heat-resistant chromium-molybdenum steel family. The chromium provides improved oxidation and corrosion resistance, and the molybdenum increases strength at elevated temperatures. Compared to grade T11 (1.25Cr-0.5Mo-Si) of ASTM A213, the …