(iv) a far greater range of sizes, particularly small diameters and thin wall thicknesses, (iii) more readily controlled mechanical properties, Stainless steel pipe and tube made by the hot finishing process may have some limitations which might create the need for further cold finishing operations. Elongation of the material then takes place to attain the required dimensions. Elongation Is carried out by squeezing the billet through the annular space formed by the die and the mandrel. The mandrel is then concentrically positioned to a circular die. The billet is then heated and a mandrel is pushed through. Prior to extrusion, a short round billet is pierced or bored to form a hollow billet. SEAMLESS MANUFACTURING PROCESSES Hot Finished Tube to ASTM B163/B165 UNS N04400.Īvailable ex-stock in sized 6.35 (1/4") to 12.70 mm (1/2") OD with other sizes available on request. Tube to ASTM A269 UNS N80904Īvailable ex-stock in sized 6.35 (1/4") to 19.10 mm (3/4") OD with other sizes available on request. Tube to ASTM A269 UNS S31254. Super Duplex Tubes to ASTM A789 UNS S32750 and UNS S32760 are available on request.Īvailable ex-stock in sizes 6.35 (1/4") to 12.70 mm (1/2"), OD with other sizes available on request. Prochem stock tubes are supplied in Duplex – to ASTM A789 UNS S31803. Available ex-stock in sizes 6.35 (1/4") to 12.70 mm (1/2") OD with other sizes available on request. Other sizes may be supplied in coils if required.Īt elevated temperatures in a high chloride environment industry turns to Seamless Duplex tubes, to provide extra corrosion resistance. High quality seamless tube from Prochem is fully certifiable and available in standard 6m lengths although 1⁄8” OD tube is supplied in coils. Sizes from 1” through 2” are supplied to ASTM A269 TP-316. The tube is dual graded, 316/316L and dual specified A269/A213 to not only cover instrumentation applications, but boiler, superheater and heat exchanger applications as well.Īll tube in sizes 4.76mm (3⁄16”) to 25.40mm (1”) OD x 2.77mm WT inclusive are dual specified, contain 2.5% minimum molybdenum to provide maximum corrosion protection and are produced to a maximum hardness of RB 80. Prochem leads the field in the supply of high quality instrument tube which is stocked throughout Australia specifically for use with compression fittings. Prochem’s stock of 3.2 (1/8") to 50.8 mm (2") OD is available in a variety of wall thickness ranging from 0.71 (22 SWG) up to 3.25 mm (10 SWG).Īll tube from 4.76 mm (3/16") OD is available in 6 m lengths continuously marked along the length of the tube with size, wall thickness, standard, grade, heat number and manufactures name.
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