Stainless Steel Seamless ‘U’-Tubes

Stainless Steel Seamless ‘U’-Tubes

Petroinox Pipes & Tubes Pvt Ltd has the latest In-house "U" bending facility for manufacturing U-Tubes for use in heat exchangers, condensers, pre-heaters, and other applications, in addition to the production of stainless steel seamless straight tubes and pipes to a wide range of Austenitic, Ferritic, Martensitic, Duplex & Super Duplex. TEMA, ASTM A 688, and other legislative criteria or specifications are followed in the production of these U-Tubes.

Cold working is used to bend seamless stainless steel straight tubes into "U" shapes. Straight tubes are bent on a pulley with a known radius depending on the radius, which will be strictly according to the drawing provided by the customer. After that, resistance heating is used to relieve tension on the bend area as well as the 6 inch leg length. The temperature is then adjusted and maintained at the desired temperature and time using a suitable Pyrometer. To prevent internal oxidation, inert gas is fed through it at the desired flow rate.

Outside Diameter 12.70 mm to 50.80 mm
Wall Thickness 0.89 mm to 5.00 mm
Grades TP-304, 304L, 304H, 304N, 304LN 316, 316L, 316H, 316Ti, 316N, 316LN, 310, 317, 317L, 321, 321H, 347, 347H

UNS S 31260, 31500, 31803, 32205, 32304, 32750, 32760

TP- 405, 410
Specifications ASTM, ASME, DIN EN, JIS ( JAPAN ), NF ( AFNOR ) & Drawing as per customer's requirements.
Length Up to 30mtr long
Applications
  • LP / HP Heaters
  • Fertilizer
  • Power Plant
  • Petrochemical & Refinery
  • Airfin Cooler
  • Nuclear Power Plant