304 304L 316 316L 321 Duplex S31803 2205 Nickel Alloy U Bend Tube

Basic Information
Place of Origin: China
Brand Name: Torich
Certification: ISO9001 ISO14001 TS16949
Model Number: ASTM A213
Minimum Order Quantity: 1tons
Price: negotiation
Packaging Details: in wooden boxes packaging
Delivery Time: 5-8 weeks
Payment Terms: L/C, T/T
Supply Ability: 5000tons per year
Detail Information
Application: Boiler Or Exchanger Technique: Hot Rolled,Cold Drawn,Cold Rolled
Thickness: 0.6 - 50.0 Mm Standard: ASTM
Alloy Or Not: Is Alloy Section Shape: Round
Secondary Or Not: Non-secondary Material: Stainless Steel
Product Name: 304 316 304H Stainless Steel Heat Exchanger And Boiler Tubes Type: SMLS
High Light:

2205 U Bend Tube


Duplex S31803 U Bend Tube


316L U Bend Pipe

Product Description

304 / 304L, 316 316L, 321,duplex S31803, 2205,nickel alloy U-bend or U-shape bending boiler exhcanger tubes


Key words:

Stainless steel seamless U tubes

SS seamless U tubes

Stainless steel U tubes

SS U tubes

ASTM A213 Stainless steel seamless steel U tubes


Size: OD:6.35mm- 273mm



Length: 16m max


Surface: Annealing pickling ,Bright annealing

Application: Heat exchanger Feedwater Heater


Testing: Measuring test,100% ECT HT etc.


Relative standard:

ASTM A213 ASTM A249 ASTM A798 ASTM A268 SA 268

ASTM A688 A803



Production Method: Cold drawing and Cold rolled.


Features :

  • 'U' bending is done by cold working process.
  • 'U' bending is done to the required radius as per customer drawings.
  • The bend portion and six inch leg is stress relieved by resistance heating.
  • Inert gas (Argon) is passed through it at the required flow rate to avoid oxidation in ID.
  • The radius is checked for its OD and wall thinning with the recommended specification.
  • The physical properties and micro-structure is checked at three different position.
  • Visual inspection for waviness and cracks is done with Dye Penetrant Test.
  • Each tube is then hydro tested at the recommended pressure to check for leakage.
  • Cotton ball test is done to check the ID cleanliness of the tube.
  • Thereafter pickled, dried, marked and packed.
  • 304 304L 316 316L 321 Duplex S31803 2205 Nickel Alloy U Bend Tube 0

Contact Details
Lily Zhang

Phone Number : +8618958208557

WhatsApp : +8613736164628