Stainless Steel U Bend Tube for Heat Exchanger

澳门凯发娱乐Stainless steel U bend tube is widely used for high temperature or low temperature condition, especially in heat exchanger and boiler system, manufactured standards include ASTM A688 and ASTM A803, and stainless steel material has 304 / 304L, 316 / 316L, 321, S31803, 2205 grades.

U bend tubes for heat exchangers applied mostly in Oil & Gas plants, Chemical & Petrochemical plants, Refineries, Power plants, Renewable energy plants.

U Bend Heat Exchanger Tube Specifications

Straightmax 30000 mm
Radiusmax 1500 mm
Heat treatment100%
Leg lengthmax 12000 mm
Manufacturerwelded and seamless
SpecificationA688, A803
GradesTP304 TP304L, TP316 / TP316L, TP321, S31803
Surfaceannealing pickling, bright annealing
Applicationheat exchanger

U Bend Tube Standards and Technology

U bending tubes are manufactured strictly according to the common heat exchanger standards, inspections are done from material to final product to ensure U bending tubes 100% high quality to meet critical applications.

  • ASTM A688 / A688M, Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes
  • ASTM A803 / A803M, Seamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes
  • ASTM A213
  • ASTM A249
  • ASTM A789

Tolerances should be controlled conform to ASTM A688, standard, Special tolerances are available upon customer requirements.

Heat treatment澳门凯发娱乐 should be done after U bend, heat treatment of bending portion may be required to reduce the residual stress, if not specified, heat treatment of bends plus minimum 150 mm of leg is standard.

U bend tubes should be fabricated as standard in high quality, controlling ovalization and thickness of bending portion accurately, and straightness of leg length, squareness and cleanliness of tube ends should be cut.

  • Dimension certificate
  • Flaring and flattening
  • Hydrostatic test
  • U.T test
  • Air Underwater Test

Stainless steel U bend tube is used in heat exchanger systems and other systems, it transfer heat from a hot to a cold side through the tube. This is made possible through the width of the tubes on each end, poor tube material can result in problems.

U Bend Tube Packing

  • Ends of tubes protected by plastic caps
  • Vertical separators for each radius
  • horizontal separators for each tube
  • Standard wooden case

Dimension Of Stainless Steel U Bend Tube

OD/WT (mm) 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.5 1.65 2.0 2.11 2.5 3.0
12.7            
14        
15        
16        
19.1    
20    
22    
23    
25.4  
28  
30  
31.8  
34  
35    
38.1    
stainless steel u bend tube
welded seamless stainless steel U bending tube
U bending stainless steel tbuing