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Huzhou Nanxun Changyin Special Material Technology co.,Ltd








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Huzhou Nanxun Changyin Special Material Technology Co., Ltd. was recombined in January 2015, the predecessor of Huzhou Feng Tai Stainless Steel Pipe Co., Ltd. [2005.6 ~ 2014.12].It’s called "Changyin special material" after the reorganization. It is one of the few enterprises in China to manufacture all kinds of chemical equipment by using seamless steel tubes and welded steel tubes. Annual design production capacity of seamless steel tube is 10000 tons and annual design production capacity of welded steel tube is 8000 tons.

Seamless steel tubes, all used with the domestic advanced level of processing of cold based, supplemented by cold drawing and joint process of rolling and pulling, and welded steel tube is produced by domestic advanced operation organization of JCOE continuous line, multi station operation. The company independent brand changyin and leading products are as follows: boiler and heat exchanger, pressure vessel, and petroleum cracking unit are using stainless steel,

The company is located in the " land of plenty, silk of the House " in Zhejiang province Huzhou City Linghu Bamboo Pier Industrial Park, the traffic is smooth. Enterprise with a total investment of 100 million yuan, registered capital of 30 million yuan, the production area covers an area of 40000 square meters, 55 million yuan investment in fixed assets. It has the domestic advanced production lines and perfect testing equipments: LZG-60 type high speed rolling mill,LD-60 finishing mill,LG-30-H high-speed cold rolling mill and the matching production equipment of cold draw machine, natural gas roller bottom solid solution treatment furnace as well as France imported SAF welding system. And equipped with finished product non destructive testing system---- ultrasonic testing and eddy current testing, water pressure test,100T screen explicit universal testing machine, high pressure water jet cleaning equipment, endoscope, Spike alloy spectrometer, metallographic examination, metallographic examination, intergranular corrosion, chemical analysis and many advanced detection systems to ensure the reliability of our products quality.

In 2006, the company has achieved IS09001-2000 certificate of quality management system certification of China Quality Certification Center; and then got manufacturing license for national special equipment [pressure piping components A, B], license number:TS271044L-2019, and then got EU pressure vessel directive PED certification [TUV] and AD2000 certificate in 2015. The company currently has more than 140 employees, most of these people have nearly 20 years of production experience of stainless steel tubing, and accumulated a wealth of professional knowledge and experience as well.

The company has long attached great importance to the research and development of new products and the popularization and application of the new technology. Through unremitting efforts, it has formed the leading products with a distinctive characteristic and a high performance. The main product sales accounted for more than 65% of the sales revenue of the company,the successful development of these products ensures the competitive advantage of Changyin in the industry's, specifically, there are the following several leading products:
1.Boiler Tube, Heat Exchanger Tube And Condenser Tubes
2.C Series Stainless Steel Seamless Tubes and Pipes for Nitric Acid Industry;
3.Nickle Based Alloy Seamless Tubes and Pipes;
4.Urea Grade Austenitic Stainless Steel Seamless Tubes and Pipes;
5.Large Diameter And Heavy Thickness Welded Pipes.;

In addition to the above typical products, we also produce tubes for deep well oil production and sanitary grade cleaning tubes as well, details are more clear in the corporate website.The development of stainless steel industry is always closely related to the development of global industrial equipment, next step, Changyin will continue to strengthen investment on the basis of existing R & D levels and results so as to expand the new areas in many aspects: such as nuclear power tubes, water and electricity tubes , solar energy devices tubes, seawater desalination tubes, sanitary grade tubes, etc, And Changyin will continue to contribute to the further development of industrial equipment in China and even in the whole globe.

We are earnest and down-to-earth, we also look up to the sky, let us join hands and work together for a better tomorrow!

Huzhou Nanxun Changyin Special Material Technology co Ltd

  Stainless Steel Tube/Pipe/Tubing, Nickel Alloy Tubing, Brass Alloy Tubing, Copper Nickel Pipe Material Grades


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Main Products:

BA Tube | AP Tube
Condenser Tubes Tubing
Stainless Steel Reheater Tube Superheater Tubes
Stainless Steel U bend Tube
Nickel Alloy U bend Tubes
Copper Alloy U Bend Tubes
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Super Duplex Pipe
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Duplex Stainless Steel Pipe
Seamless Stainless Steel Tubing
Corrugated Stainless Steel Tubing
Stainless Steel Twisted Tube
Polishing Stainless Steel Tubing
Stainless Steel Aircraft Tube
Stainless Steel Hydraulic Tubing
Stainless Steel Instrumentation Tubing
Stainless Steel Angle Iron Bar
Stainless Steel Mechanical Tube
Bright Annealing Stainless Tube
Heat resistant Stainless Steel
Stainless Steel Welded Pipe
Extruded Serrated Finned Tubes Integral Finned Tubes / Extruded Aluminum Finned Tubes
Brass Alloys Copper Nickel Alloy Integral Low Finned Tubes
HFW High Frequency Welded Helical Spiral Serrated Finned Tubes
Corrosion Resistant Stainless Steel
Corrosion Resistance Stainless Steel

Stainless Steel Tubing Pipe

304 Stainless Steel Pipe
304L Stainless Steel Pipe
304H Stainless Steel Pipe
304/304L Stainless Steel Tubing
309S Stainless Steel Pipe
310S Stainless Steel Pipe
316L Stainless Steel Tubing
316Ti Stainless Steel Tube
317L Stainless Steel Pipe
321 321H Stainless Steel
347 347H Stainless Steel
904L N08094 Seamless Tubes
17-4 PH 630 UNS S17400 Stainless Steel
253MA S30815 Stainless Steel Tube
S31254 254 SMO Pipe
S31803 Stainless Steel
2205 Duplex Pipe Tubing
S32101 Stainless Steel
S32304 Stainless Steel
2507 Super Duplex Pipe
S32750 Super Duplex Pipe
S32760 Super Duplex Steel
1.4462 Stainless Steel Pipe
ASTM A213 | ASTM A269
ASTM A312 | ASTM A511
ASTM A789 | ASTM A790
ASTM B161 / ASME SB 161 | ASTM B111
EN 10216-5
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes
Nickel Alloy Tubing:

UNS N08020 Alloy 20 Tubing
UNS N02200 Alloy 200 Tube
UNS N02201 Alloy 201 Pipe
UNS N04400 Monel 400 Tubing
N06600 Inconel 600 Tube
N06601 Inconel 601 Tubing
N06625 Inconel 625 Tubes
N08800 Incoloy 800 Tube
N08810 Incoloy 800H Tube
N08811 Incoloy 800HT Tubing
UNS N08825 Incoloy 825 Pipe
ASTM B622 N10276 C276 Tubing
ASTM B622 N06022 Hastelloy C-22 Alloy Tubes
C28000 Brass Seamless Tubes C44300 Brass Seamless Tubes
C68700 Brass Seamless Tubes
C70600 Copper Nickel Tubes
C71500 Copper Nickel Tubes
DIN 2391 Seamless Precision Steel Tubes
EN 10305-1 E215 E235 E355 Seamless Precision Steel Tube Tubing Tubes
DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
EN 10305-2 E195 E235 E355 Welded Cold Drawn Precision Steel Tube