ASTM A179 U-Bent tubes are widely used in Heat-exchangers applied mostly in oil and gas plants, chemical and petrochemical plants, refineries, power plants, and renewable energy plants. Low fin tubes can be supplied in the form of U bends.
ASTM A179 U-Bent tubes
ASTM A179 U-Bent Tubes 1
Applications:
ASTM A179 U- Bent tubes for Heat exchangers applied mostly in oil & gas plants, chemical & petrochemical plants, refineries, power plants, renewable energy plants.
Description:
ASTM A179 U-Bent Heat exchanger tubes.
Click to download the details of ASTM A179 U-Bent Heat exchanger tubes.
U bending tubes Standard and Materials:
- ASTM A179/ ASME SA179.
- ASTM A213/ ASME SA 213, T11, T22, T22, T5.
- ASTM A213/ ASME SA213, TP304/304L, TP316/316L, S31803, S32205, S32750, S32760, TP410.
- ASTM B111, C44300, C68700, C70600, C71500.
- ASTM B338, GR.1, GR.2.
- Monel alloys.
- Nickel alloys.
A179 U Bend Dimension capability
- Tube OD.: 12.7mm-38.1mm.
- Tube Thickness: 1.25mm-6mm.
- Bending Radius: Min.1.5 x OD/ Max. 1250mm.
- U tube Straight “leg” Length: Max. 12500mm.
- Straight tube before U bending: Max. 27000mm.
U Bend Tube Tolerance:
Standards usually required to establish U bend tube tolerances:
– ASTM A556/556M
– ASTM B395 / B395M
– ASTM A688/688M
– ASTM A803/803M
– TEMA Section 5 § RCB 2.31
– DIN 28179
U bend tube heat treatment
After U bend (cold forming), heat treatment of bending portion may be required. Nitrogen generating machine (to protect stainless steel tube surface during annealing). Temperature is controlled through the entire heat-treated area by fixed and portable infrared pyrometers.
ASTM A179 U bend tube Drawing:
ASTM A179 U-Bent Tubes 19.05mm Drawing
ASTM A179 U-Bent Tubes 25.4mm Drawing
ASTM A179 U bend tube can be tested as follows:
- Flattening Test: A flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
- Flaring Test: A flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
- Hydrostatic or Nondestructive Electric Test: Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the manufacturer’s option unless otherwise specified in the purchase order.
Note:
- Mill test certificates will be issued according to EN10204.3.1 or 3.2
- All tubes shall be supplied as per applicable standard Specification.
U bend tube photos:
ASTM A179 U-Bent Tubes for Heat Exchangers
ASTM A179 U-Bent Boiler Tubes
ASTM A179 U-Bent Tubes for Boiler
ASTM A179 U Bent Tubes Packing
- Packed in plywood box wrapped in plastic and suitably protected for sea-worthily delivery or as requested.
Packing photos:
ASTM A179 U-Bent Tubes Packing by Wooden Box
ASTM A179 U-Bent Tubes Wooden Box Package
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