Company Profile
Products
Welded Pipe
Seamless Pipe
Stainless Pipe
Flat & Rolled Metallic Materials
OCTG
Ductile Iron Pipe
Fin Tube
Pipe Fittings
Copper Tube
Plastic Pipe
Fastener
Pressure Vessel
Reference List
Industry Membership
Inspection Report
Company News
Quality Policy
HSE
EPCM
Pipe Specification
CS Pipe Specs
Stainless Steel Specs
API Specification
EN & DIN Specification
Australian Standard
GOST Specification
Anti-Corrosion Specification
Steel Plate Specs
Pipe Fitting Specs
Fastener Specification
Contact Us

Products 

 

ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube

  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASTM A213 TP304/TP304L STAINLESS STEEL U TUBE
  • ASME SA213 TP316/TP316L STAINLESS STEEL U-BENT TUBE
  • ASME SA790 UNS S31803 DUPLEX STAINLESS STEEL U TUBE
  • ASME SA688 TP321 Seamless and Welded Stainless Steel Low Pressure Feed Water Heater(FWH) U-bent Tubes
  • ASME SA213M  TP321/TP321H Stainless Steel U Bend Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • Inconel 690 Alloy U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
  • ASME SA213,ASME SA269,ASME SA688,ASME SA789,DIN 28179 Stainless Steel U Tube
Model No.︰-
Brand Name︰ASME SA213,ASME SA249,ASME SA269,ASME SA312
Country of Origin︰-
Unit Price︰US $ 9.9 / kg
Minimum Order︰200 kg
Share on:

 Total 22 Related Items 
Prev1213141516Next

Product Description
   O.D. W.T. Length Standards Materials Remarks
  12.7-76.2mm     (1/2”-3”) 0.5-5.16mm (0.02”-0.203”)  Leg Length     12.5m~27m(max.dev.Length 88’) ASTM A213/ASME SA213 TP304/304L, TP304H, TP316/316L, TP347/347H, TP316Ti, TP321/321H, TP310S Seamless Ferritic and Austenitic Stainless Steel U-bent Tubes
ASTM/ASME A/SA249 TP304, TP304L, TP316, TP316L…  Welded Stainless Steel U-bent Tubes
ASTM/ASME A/SA789 SAF2205/UNS S31803/32205, SAF2507/UNS S32750… Duplex Stainless Steel U-bent Tubes
ASTM/ASME A/SA163 Monel400, Inconel600, 625, Incoloy800/800H, 825…  Seamless Nickel Alloy U-bent Tubes
ASTM/ASME A/SA268 TP405, TP409, TP410, TP430 Ferritic and Martensitic Stainless Steel Seamless U-bent Tubes
        EN: 10217-7 321, 347, 310,UNS-S32760, S31803, S31500  
  12.7-25.4             (1/2”-1”) 0.7-3.05mm   (0.028”-0.12”)  Leg Length     12.5m~27m(max.dev.Length 88’) ASTM/ASME A/SA688/213 304/304L/304H(1.4301/1.4306/1.4948); 316/316L(1.4401/1.4404);316Ti(1.4571); 321(1.4541);309S(1.4833);310S(1.4845); 317L(1.4438);321H(1.4878);347H(1.4550); 2205(1.4462) ; S31803,2507  Low Pressure Feed Water Heater U Tube of Thermal Power 


'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 microstructure 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.
All procedure is strictly followed as per TEMA "C" and ASTM A-688.

Initial Length
Maximum lengths of 27000mm can be supplied on request
Bending radius: Maximum 1000 mm


The basic Testing and processing:
1. High Pressure Hydrostatic Test:Minimum:10 Mpa-25Mpa.
2. Air Under Water Test After Bending
3. U Tubes Wall Thickness Test
4. Eddy Current Test before U bend Formed
5. Ultrasonic Test before U bend Formed
6. Heat treatment to stress relieved
7. Ball passing test
 

Technical conditions:

Heat treatment:Stress relive annealing of U-tubes after bending

Dimensional tolerances U-tubes acc. to TEMA R.C.B.

Length of straight part -0/+5 mm 

Flattening (also called “ovality”) at the bend shall not exceed 10% of the nominal tube outside diameter.

Wall thickness in bending part acc. to TEMA RCB 2.31 

Minimum tube wall thickness in the bend part (T min)

T(min) ≥ (SW × (2×R + D))/( 2× (R+D)

where:   SW  is smallest wall thickness

 D  Nominal outside diameter

 R radius

Radius tolerance 1) for R   100 mm +/- 3 mm

2) for R ≥ 100 mm +/- 5 mm

Straightness tolerance max. 1,5 mm per 1 m

U-Tube ends: plain, vertically cut to the tube axis

Repairs by welding: prohibited

Surface condition Finished U-tubes shall be free of scale, without scratches after bending,  

Coating :Passivation and oiled, Black paint or varnish

Packing:Plastic plugs in both ends, bundles of max. 3,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper packed in wooden case

USAGE: Heat  Exchanger; Steam Boiler;Hot-Water Boiler; Medium temperature  Boiler serve ; oil and gas transportation,low-temperature serve; Shipbuilding ect.

Specifications︰1. ASTM A688/A688M-15 Specification for Seamless and WeldedAustenitic Stainless Steel Feedwater Heater Tubes
2. ASTM A803/A803M-12 Standard Specification for Seamless andWelded Ferritic Stainless Steel Feedwater Heater Tubes
3. ASTM A556/A556M-12 Standard Specification for SeamlessCold-Drawn Carbon Steel Feedwater Heater Tubes
Standard Met︰Main Testing Terms and Procedure:
1. Heat Treatment and Solution Annealing / Bright Annealing
2. Cutting to required length and deburring;
3. Chemical Composition Analysis Test With 100% PMI and One tube
from each heat by Direct Reading Spectrometer
4. Visual Test and Endoscope Test for Surface Quality Test
5. 100% Hydrostatic Test and 100% Eddy Current Test
6. Ultrasonic Test subject to the MPS (Material Purchase
Specification)
7. Mechanical Tests includes Tension Test, Flattening Test, Flaring
Test, Hardness Test
8. Impact Test subject to Standard request
9. Grain Size Test and Intergranular Corrosion Test
10. Ultrasoic measuring of Wall Thickness
11. Stress Relieve Annealing on U bend Parts after bending
Product Image


ASTM A213 TP304/TP304L STAINLESS STEEL U TUBE
ASTM A213 TP304/TP304L STAINLESS STEEL U TUBE

ASME SA213 TP316/TP316L STAINLESS STEEL U-BENT TUBE
ASME SA213 TP316/TP316L STAINLESS STEEL U-BENT TUBE

ASME SA790 UNS S31803 DUPLEX STAINLESS STEEL U TUBE
ASME SA790 UNS S31803 DUPLEX STAINLESS STEEL U TUBE

ASME SA688 TP321 Seamless and Welded Stainless Steel Low Pressure Feed Water Heater(FWH) U-bent Tubes
ASME SA688 TP321 Seamless and Welded Stainless Steel Low Pressure Feed Water Heater(FWH) U-bent Tubes

ASME SA213M  TP321/TP321H Stainless Steel U Bend Tube
ASME SA213M TP321/TP321H Stainless Steel U Bend Tube



Inconel 690 Alloy U Tube
Inconel 690 Alloy U Tube







Related Products
API 5LC30-1812,API 5LC52-1200,API 5LC65-2205,EN 10217-7 CRA Line Pipe
API 5LC30-1812,API 5LC52-1200,API 5LC65-2205,EN 10217-7 CRA Line Pipe
US $ 8.8
ASTM A269 TP316/TP316L SEAMLESS STAINLESS STEEL TUBE
ASTM A213,ASTM A269,ASTM A312,ASTM A789,EN10216-5 Seamless Stainless Tube
US $ 8.85
ASTM A213,ASTM A269,ASTM A312,DIN 17458,EN10216-5 SEAMLESS STAINLESS PIPE
ASTM A213,ASTM A269,ASTM A312,DIN 17458,EN10216-5 SEAMLESS STAINLESS PIPE
US $ 8.5
ASTM A249 WELDED STAINLESS STEEL TUBE
ASTM A268,ASTM A270,ASTM A312,EN10217-7,EN10296-2 STAINLESSS WELDED TUBE
US $ 7.8

Company Profile  |  Products  |  Reference List  |  Industry Membership  |  Inspection Report  |  Company News  |  Quality Policy  |  HSE  |  EPCM  |  Pipe Specification  |  CS Pipe Specs  |  Stainless Steel Specs  |  API Specification  |  EN & DIN Specification  |  Australian Standard  |  GOST Specification  |  Anti-Corrosion Specification  |  Steel Plate Specs  |  Pipe Fitting Specs  |  Fastener Specification  |  Contact Us  |  Sitemap  |  Mobile Version
  English     简体版     繁體版
Powered by DIYTrade.com
HomeContact UsSitemap