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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 SA213M  TP321/TP321H Stainless Steel U Bend Tube
  • ASME SA688 TP321 Seamless and Welded Stainless Steel Low Pressure Feed Water Heater(FWH) U-bent Tubes
  • 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
  • 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
  • U-TUBE HEAT EXCHANGER
  • 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
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Product Description
Specification Materials  O.D. W.T. Length
ASTM A213/ASME SA213 Seamless Ferritic and Austenitic Stainless Steel U-bent Tubes TP304/304L, TP304H, TP316/316L, TP347/347H, TP316Ti, TP321/321H, TP310S 12.7-76.2mm     (1/2”-3”) 0.5-5.16mm (0.02”-0.203”) 12.5m~27m(max.dev.Length 88’)
ASTM A249/ASME SA249 Welded Stainless Steel U-bent Tubes TP304, TP304L, TP316, TP316L…
ASTM A789/ASME SA789 Duplex Stainless Steel U-bent Tubes SAF2205/UNS S31803/32205, SAF2507/UNS S32750…
ASTM B163/ASME SA163 Seamless Nickel Alloy U-bent Tubes Monel400, Inconel600, 625, Incoloy800/800H, 825…
ASTM A268/ASME SA269 Ferritic and Martensitic Stainless Steel Seamless U-bent Tubes TP405, TP409, TP410, TP430
EN 10217-7 Welded Stainless Steel Tube for Pressure Purpose 321, 347, 310,UNS-S32760, S31803, S31500
ASTM A688/ASME SA688 Low Pressure Feed Water Heater U Tube of Thermal Power  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
Specifications︰Technical conditions:

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

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

3.Length of straight part -0/+5 mm

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

5.Wall thickness in bending part acc. to TEMA RCB 2.31

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

T(min) ≥ (SW × (2×R + D))/( 2× (R+D)

where: SW=smallest wall thickness, D=Nominal outside diameter,R=radius

7.Radius tolerance 1) for R 100 mm +/- 3 mm, 2) for R ≥ 100 mm +/- 5 mm

8.Straightness tolerance max. 1,5 mm per 1 m

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

10.Repairs by welding: prohibited

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

12. Delivery Condition: Passivation and oiled, Black paint or varnish, Bright Annealed

13. 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



Main Testing Items and Procedure:

3. Chemical Composition Analysis Test With 100% PMI and One tube from each heat by Direct Reading Spectrometer

4. Visual inspection for waviness and cracks by Dye Penetrant Test. and Endoscope Test for Surface Quality Test:

5. 100% Hydrostatic Test: Minimum:10 Mpa-25Mpa and 100% Eddy Current Test before U bend Formed

6. Ultrasonic Test before U bend Formed subject to the MPS (Material Purchase Specification)

7. Mechanical Tests includes Tension Test, Flattening Test, FlaringTest, Hardness Test

8. Impact Test subject to Standard request

9. Grain Size Test and Intergranular Corrosion Test

10. Ultrasonic measuring of Wall Thickness

11. Stress Relieve Annealing on U bend Parts after bending

12.Air Under Water Test After Bending

13. Cotton Ball Passing Test for ID cleanness

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




Inconel 690 Alloy U Tube
Inconel 690 Alloy U Tube




U-TUBE HEAT EXCHANGER
U-TUBE HEAT EXCHANGER





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