Heat Exchanger Stainless Steel U Bends , ASME SA789 2205 Duplex
Stainless Steel Pipe
Spezilla provides bent tubes including:
Heat treatment: Inert atmosphere inside tube (on request).
Anti-oxidation surface treatment (with protective oils).
Trimming and deburring of the ends.
Internal cleaning and cap insertion.
Packing in custom racks.
Applications - U-Bent Tube
The common application fields are:
heat exchangers (condensers, evaporators, sea water desalinators)
chemical and petrochemical industries
food processing and refrigeration industries
Stainless Steel Tube Standards:
ASTM A249: Standard specification for welded austenitic steel
boiler,superheater, heat-exchanger and condenser tubes.
ASTM A269:Standard specification for welded austenitic stainless
steel tubing for general service.
ASTM A688:Standard specification for welded austenitic stainless
steel feedwater heater tubes.
ASTM A554:Standard specification for welded stainless steel
ASTM A268:Specification for seamless and welded
Ferritic/Martensitic stainless steel tubing for General Service
ASTM A789:Specification for seamless and welded Ferritic/Austenitic
stainless steel tubing for General Service
ASTM A312:Seamless/Welded austenitic stainless steel pipe
DIN17455:General purpose welded circular stainless steel tubes
DIN17457: Welded circular austenitic stainless steel tubes subject
to special requirements; technical delivery conditions
EN 10217-7:Welded Steel Tubes for pressure purposes-Part 7
Stainless steel tubes
|Standard Dimensions - U-Bent Tube|
|Outside diameter||6 ÷90 mm||¼”÷3 ½”|
|Maximum overall length||1 ÷ 28 m||3 ÷ 92 ft|
|Bending Radius Min.||1,5 × tube diameter|
|Bending Radius Max.||1500 mm||4ft|
|Inspections and Tests - U-Bent Tube|
|Eddy Current Test|
|Dye Penetrant Test|
|Heat Treatment Conditions|
|Annealed (Bright Annealing)|
|Materials - U-Bent Tube|
|Carbon Steel||SA 179 / A 179|
|Carbon Steel||SA 210 / A 210|
|Carbon Steel||SA 334 / A 334|
|Stainless Steel||SA 213 / A 213|
|SA249 / A249|
|SA268 / A268|
|SA688 / A688|
|Duplex Stainless Steel||SA 789 / A 789|
|Copper & Cu Alloys||SB 111 / B 111|
|Titanium & Ti Alloys||SB 338 / B 338|
|For different materials please contact our sales department.|