We purpose to understand quality disfigurement in the creation and provide the ideal services to domestic and abroad shoppers wholeheartedly for OEM Factory for China Seamless Steel Pipe St37 for Boiler Heat Exchanger, Because we stay with this line about 10 years. We got most effective suppliers support on excellent and cost. And we had weed out suppliers with poor high quality. Now several OEM factories cooperated with us too.
We purpose to understand quality disfigurement in the creation and provide the ideal services to domestic and abroad shoppers wholeheartedly for China Seamless Pipe, Low Alloy Steel Seamless Pipe, We attained ISO9001 which provides solid foundation for our further development. Persisting in “High quality, Prompt Delivery, Competitive Price”, now we have established long-term cooperation with clients from both overseas and domestically and get new and old clients’ high comments. It is our great honor to meet your demands. We have been sincerely expecting your attention.
ASTM A269 321H stainless steel exchanger pipe

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Heat exchanger tube in an extensive range of austenitic stainless steels, duplex stainless steels, nickel alloys, titanium and zirconium, suitable for all types of heat exchangers, such as seawater coolers, condensers, evaporators, heaters and reheaters.

Heat exchanger Tubes are used in all types of process industries. Characteristic requirements are: bead worked weld, fixed lengths and extensive testing.

Our commitment to on-time delivery and supply of high-quality material has enabled us to build lasting relationships with engineering companies and end users right across the global.

Each U bend tube of our range is rigorously quality checked by our team of talented professionals on every stage of production to deliver the clients defect free best quality products.

Specification

Grade :commonly ASTM A213 S304/304L,316/316L ,317L ,321/321H , 410,Duplex 2205 (UNS S31803)

Standard:ASTM A312 ASTM A269  213

Process: Method Cold Drawn/ Cold Rolled   

Surface Finish :Annealed/ Polished

Package: Woven bag for each piece, then packed in seaworthy wooden cases

Delivery Time: 20-60 Days after receiving the deposit (Normally according to the order quantity)

Price Item :FOB, CIF or as negotiation

Payment :T/T(30% in advance, 70% against the BL Copy) or as negotiation

Quality Requirement: Mill Test Certificate will be supplied with shipment, Third Part Inspection is acceptable

Surface protection: Unless otherwise stated in order tubes are delivered with inner and outer surfaces temporarily protected with a film of light mineral oil.

Tubes ends: The tubes are supplied plain, square cut and on request the tubes can be deburred.

1 . We use Cold Drawn techonology to produce U bend tube

2 . U bend tubes produce will accordance to customer’s drawings

3 . To avoid oxidation , inert gas (Argon) is passed through tubes ID at the required flow rate

4 . The radius is checked for its OD and wall thinning with the recommended specification

5 . We’ll choose three different position or as customer’s require to make sure tubes quality . We’ll do physical properties and micro-structure test

6 . Visual inspection for waviness and cracks is done with Dye Penetrant Test

7 . Each tube is then hydro tested at the recommended pressure to check for leakage

Chemical Composition for stainless steel exchanger pipie for raw material

Application:

 a) Petroleum , chemical enterprise , super heater of boiler and heat exchanger

 b) High temperature-resistant transmission fluid pipe in power station

 c) Ship with pressure pipe

 d) Exhaust purification device

 e) Construction and ornament

 f) solar industry , military , semiconductor etc.

▼Stainless steel coiled tubing /coiled tubes material grade:

Factory

Quality advantage:

The quality of our products for the control line in oil and gas sector is assured not just during the controlled manufacturing process but also by way of finished product testing. Typical tests include:

1.Non-destructive tests

2. Hydrostatic tests

3.Surface finish controls

4. Dimensional accuracy measurements

5.Flare and coning tests

6. Mechanical and chemical property testing

Application caillary tube

1) Medical device industry

2) temperature-guided industrial temperature control, sensors used pipe, tube thermometer

3) Pens care industry core tube

4) micro-tube antenna, various types of small precision stainless steel antenna

5) With a variety of electronic small-diameter Stainless steel capillary

6) Jewelry needle punch

7) Watches, picture

8) Car antenna tube, bar antennas using tubes, antenna tube

9) Laser engraving equipment to use stainless steel tube

10) Fishing gear, accessories, Yugan out with possession of

11) Diet with stainless steel capillary

12) all types of mobile phone stylus  a computer stylus

13) Heating pipe industry, oil industry

14) Printers, silent box needle

15) Pull a double-melt stainless steel tube used in window-coupled

16) A variety of industrial small diameter Precision stainless steel tubes

17) Precision dispensing with stainless steel needles

18) Microphone, headphones and microphone to use stainless steel tube, and so on