U Tubing Heat Exchanger Tube/ U bend tube/Boiler Tube

Short Description:

Product presentation:

‘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.

Product Detail

Product Tags

Heat treatment

Each tube is treated after bending heat to release pressure, temperature and insulation time.

Heat exchanger is widely used in automobile, aviation, petrochemical, power, medicine, metallurgy, refrigeration, light industry, food, construction machinery and other industries of a general equipment, accounting for about 20%~70% of the total amount of process equipment. According to the shape and structure of its heat transfer surface, it can be divided into tube type, plate type and other forms of heat exchanger. The commonly used heat exchanger types are floating head type, fixed tube plate type and U-shaped tube type, among which the floating head type heat exchanger is in the majority. Due to its own structure, the application of the fixed pipe plate heat exchanger is limited; the floating head heat exchanger has many parts, easy to remove and clean, but the maintenance workload is large, and the leakage of the tube plate is less than the fixed tube plate heat exchanger, the leakage point is reduced accordingly. In addition, the U-type tube heat exchanger is relatively easy to dry after the shell process hydraulic test, and it has wide application occasions, simple maintenance, and good operation elasticity.

Product Detail

Steel Grade: 106B,210A1,210C,P9,P11,T1,T11,T2,T5,T12,T22,T23,T91,T92,SA192
P235GH,13CrMo4-5,15Mo3,10CrMo9-10,St35.8,ST45.8,STB340,STBA12-2,API5L,5CT 304,304L,309S,310S,316,316L,317,317L,321,347,347H,304N,316L, 316N,201,202
Standard: ASME/ASTM SA/A53/513/106/209/210/213/335/178/179/519
ASME/ASTM SA/A213,A312,A269,A778,A789,
DIN 17456, DIN17457,DIN 17459,DIN17175,EN10216,BS3605,BS3059
JIS G3458,JISG3459,JIS G3461,JIS G3462,JIS G3463
Specification: OD 6-133mm
Length: 1-20meters,or according to customer’s special request
Package: Export Standard Package
Typies of tube: Boiler tube,Seamless steel pipe,precision tube,mechanical tubing,cylinder tube,line pipes,etc
Mill MTC: Supplied before shipment
Inspection: The Third Party inspection can be accepted,SGS,BV,TUV
Our services: We can customized  according  to customer’s requriement or drawing ,packaging according  to customers’ request
Mount port: Any port in China
Trade Term FOB,CIF,CFR,EXW,etc.
Price Term TT or LC at sight

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