Stainless steel U tube for heat exchangers, certified by DNV, , TUV, PED, GOST and

• Our strength:
  • Reliable bending machines
  • Precision bending dies
  • Eddy current test before bending
  • Bending up to 105’(32m) developed length
  • Electric resistance stress relief annealing after bending
  • Hydrostatic test after bending
  • OD and WT reduction Testing
  • Full bending radius and tube legs tolerance check
  • Stack-rack boxing
  • Detailed labeling
• Process method: cold drawn
• Surface finish: annealed/pickled
• Standards:
  • ASTM/ASME A/SA213
  • ASTM/ASME A/SA249
  • ASTM/ASME A/SA789
  • ASTM/ASME A/SA163
  • ASTM/ASME A/SA268
• Grades available:
  • Seamless Ferritic and Austenitic Stainless Steel U-bent Tubes: TP304/304L, TP304H, TP316/316L, TP347/347H, TP316Ti, TP321/321H, TP310S
  • Welded Stainless Steel U-bent Tubes: TP304, TP304L, TP316, TP316L and others
  • Duplex Stainless Steel U-bent Tubes: UNS S31803/32205, UNS S32750 and others
  • Seamless Nickel Alloy U-bent Tubes: Monel400, UNS N06600, 625, Incoloy800/800H, 825 and others
  • Ferritic and Martensitic Stainless Steel Seamless U-bent Tubes: TP405, TP409, TP410S, TP430,TP439 and others
• Sizes:
  • OD: 12.7-76.2mm (1/2"-3")
  • WT: 0.5-5.16mm (0.02"-0.203")
  • Leg length: 15.24m (50')
  • Total length: 32.00m (105')
• Delivery conditions: annealed, pickled
• Applications:
  • General service industries (petroleum, food, chemical, paper, fertilizer, fabric, aviation and nuclear)
  • Fluid, gas and oil transport
  • Pressure and heat transmission
  • Construction
  • Boiler heat exchangers
• Packing: customized wooden crate