Spezilla Tube Co., Ltd. (Shanghai)

Specialists In Stainless Steel Tubes

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Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

—— Nathalie Gulli - Mexico

Spezilla supports our group very well, and now we are approved supplier of goverment, they are reliable and flexible! Spezilla always answers!

—— Jaime Arias - Argentina

Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

—— Massimiliano Rossi - Italy

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Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding

China Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding supplier
Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding supplier Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding supplier Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding supplier Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding supplier

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Product Details:

Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008
Model Number: ASME SA688

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: WOODEN BOXED
Delivery Time: WITHIN 30 DAYS
Payment Terms: T/T, L/C
Supply Ability: 100 TONS / MONTH
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Detailed Product Description
Product Name: Stainless Steel U Tube ASME Spec: ASME SA688
Finish: Bright Annealed Type: Welded
Material Grade: TP304, TP304L O.D.: 1/2'' - 1''
W.T.: 0.035'' - 0.120'' Package: Wooden Boxed
Application: Heat Exchanger

Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding

 

 

Description:

 

Spezilla is profession on manufacturing welded stainless steel U bend tubes for feedwater heaters from 1/2'' (12.70mm) to 1'' (25.4mm).

 

Materials Specifications:

 

Austenitic Stainless Steel: TP304, TP304L, TP316L, TP321 etc.

 

Duplex Stainless Steel: UNS31803, 2205

 

Ferriticc Stainless Steel: TP409L, TP439, TP430 etc.

 

Specifications of Stainless Steel U Bend Tube:

 

U Bend Tubes produced to dimensional tolerances and finish requirements of ASTM and ASME A 249/SA 249, A 688/SA 688, and A 803/SA 803 specifications.

 

Manufacturing Process:

 

1. TIG Welding, Fully-Finished Tubing Mill

 

2. Drawing for High Pressure Feedwater Heaters

 

3. Stretch Straightener

 

4. Environmentally Friendly Bright Annealing

 

5. CNC Bending

 

6. Precision Stress Relief Anneal Station

 

7. Custom Stack-Rack Boxing

 

Quality Testing:

 

Spezilla performs extensive in-line QA testing including:

 

1. Eddy Current

 

2. Ultrasonic

 

3. Hydrostatic

 

4. Pressure Decay

 

5. Air Under Water After Bending

 

Size of Stainless Steel U Bend Tube:

 
ASME SA688, ASTM A688
Wall Thickness
OD .035" (.889 mm) .049" (1.245 mm) .065" (1.651 mm) .083" (2.108 mm) .095" (2.413 mm) .120" (3.048 mm)
1/2"
(12.7 mm)
R/S R/S R/S
5/8"
(15.875 mm)
R/S R/S
3/4"
(19.05 mm)
R/S
1"
(25.4 mm)
 
R = Redrawn S = Seamless
Depending upon bend radius, some inner tube rows may require an increase in wall thickness

 

Tolerance of Stainless Steel U Bend Tube:

 

Sizes   Standard Tolerances  
Products OD Wall Lengths and/or coils Grades OD Wall Lengths
Welded Austenitic Steel Boiler, Super Heater, Heat-Exchangers & Condenser Tubes

Specifications: ASTM-A249, ASME-SA249, ASTM-A688, ASME-SA688

Metric sizes available 0.020" (0.51 mm) to 0.220" (5.59 mm) Random or cut lengths up to 90' (27.4 m) Coils to 1-1/2" OD 304/304L/
304LN/304H
Under 1" (25.4 mm) ±0.004" (0.10 mm) 1" (25.4 mm) to
1-1/2" (38.1 mm) ±0.006" (0.15 mm)
>1-1/2" (38.1 mm) to 2" (50.8 mm) ±0.008" (0.20 mm)
>2" (50.8 mm) to 2-1/2" (63.5 mm) ±0.010" (0.25 mm)
>2-1/2" (63.5 mm) to 3" (76.2 mm) ±0.012" (0.30 mm)
3" (76.2 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)
±10% Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0" Coils to 80,000' (24,384 m)

 

Applications & Markets:

 

1. Power Generation

 

2. Chemical

 

3. Petrochemical

 

4. Food

 

Welding Austenitic heat exchanger u tube, U Bend Pipe Precision TIG Welding

Contact Details
Spezilla Tube Co., Ltd. (Shanghai)

Contact Person: Will Ma

Tel: +86 13918539222

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