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Hairpin Welding ASTM A106 SMLS Heat Exchanger U Tube

  • Hairpin Welding ASTM A106 SMLS Heat Exchanger U Tube
Place of Origin China
Brand Name Reliance
Certification CE,ISO...
Model Number U Tube
Minimum Order Quantity N/A
Packaging Details Solid fumigated wooden box with tube location racks inside.
Delivery Time Ex-work within 1 month on receipt of order.
Payment Terms T/T, L/C

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Product Details
Company Type Manufacturer, Importer & Exporter Fin Tube Type U Tube Bundles
Fins Type Low Fins Is Applicable Origin China
Nearest Port Shanghai Port, China Bends Type Continuous
Heat Treatment YES
High Light

SMLS Heat Exchanger U Tube

,

ASTM A10 Heat Exchanger U Tube

,

hairpin welding U bend Tube
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Product Description

ASTM A106 SMLS carbon steel , continuous hairpin welding steel U tube bundle

 

Quick Detail: 

ASTM A106B/ASME SA106B (Available steel grade: GradeA / B / C).

ASTM 179/ASME SA179

ASTM 192/ASME SA192

ASTM A213  T11 /T22 

Tube Type:Seamless (cold drawn)

Tube Ends:Plain ends or bevel ends 

 

 

Description:  

Continuous hairpin welding steel U tube bundle. These tubes are widely used in boilers and economizers.

 

Grade and Chemical Composition:


Grade

C≤

Mn

P≤

S≤

Si≥

Cr≤

Cu≤

Mo≤

Ni≤

V≤

A

0.25

0.27-0.93

0.035

0.035

0.10

0.40

0.40

0.15

0.40

0.08

B

0.30

0.29-1.06

0.035

0.035

0.10

0.40

0.40

0.15

0.40

0.08

C

0.35

0.29-1.06

0.035

0.035

0.10

0.40

0.40

0.15

0.40

0.08

 

Factory test and other terms:

 

1. Hydrostatic or Nondestructive Electric Test

2. Heat Treatment: according to Standard
3. Surface Condition:According to Standard.
4. Grain Size:According to standard
5. Sampling:flattening,flaring,grain size,Marking

6. We provide bevel end,plastic cap, varnish coating, oiled or black painted to prevent rustand other packing 

service.

 

 

Technical Requirements:

Straight Tubes Standard Specification For Bending:

ASTM A106; ASTM A179 ;ASTM A192 ; ASTM A210 etc

Marking: 

Before Bending By Marking Machine All Over The Tube Length

 (Bent Section After Heat Treatment Without Marking)

 

U-Bend Tubes:

-TEMA RCB 2.31 Standard Of The Tubular Exchanger Manufacturers Association (9th Edition).

-ASTM A688/ASME SA688 Standard Specification For Welded Tubes Of Austenitic Corrosion Resistant 

Steel Grade Designed For Feed Water Boilers.

-ASTM B163/ASME SA163 Standard Techinical Requirements For Tubes Of Nickel And Nickel Alloy For 

Condensers And Heat Exchangers.

 

 

Bending Radius:

 From 1.5*OD(Outside Diameter) To 1500mm

When Ordering Tubes With Radius less or equal to 1.5*OD, It Is Necessary To Agree Precision Of Geometrics.

 

Straight Tubes Maximum Length:

(Before Bending): 35000 mm.

 

Leg Length:

 Min 1 Meter, Max. 16500 mm (For Max R=1500mm)

 

Heat Treatment: 

Stress Relieved After U-Bending (Bending Area Plus 300MM For Each Leg).

 

Hydrostatic Test After U Bending: 

Maximum Test Pressure 600 Bar, Soaking 10 Sec. 

Medium:Dematerialized Water. Compressed Air Cleaning After Hydro-Test.

 

Packaging: In Strong Transport-Worthy Pre-fumigated wooden boxes of corresponding dimensions for 

each tube Length, Radius, Diameter, According To PO requirements as well as wrapped In polyethylene 

films With soft plastic caps on both end of Tube.

 

 

Grade and Chemical Composition (%):

 

STANDARD

GRADE

                           CHEMICAL COMPOSITION

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

         ASTM A179

  A179

≤0.06-0.18

/

0.27-0.63

≤0.035

≤0.035

 

 

 

 

 

         ASME SA106

SA106B

0.170.25

≥0.1

0.701.00

≤0.030

≤0.030

≤0.035

 

 

 

 

         ASTM A106

    A

≤0.25

≤0.10

0.270.93

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

    B

≤0.30

≤0.10

0.291.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

    C

≤0.35

≤0.10

0.291.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

ASTM A53

    A

0.25

/

0.95

0.05

0.045

0.40

0.15

0.40

0.40

0.08

    B

0.3

/

1.2

0.05

0.045

0.40

0.15

0.40

0.40

0.08

 
Tags:

heat exchanger tubing

Heat Exchanger pipe

Heat Exchanger Tubular