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Stainless steel tube is a hollow round steel bar, mainly used in petroleum, chemical, medical, food, light industry, machinery and instruments and other industrial pipes and mechanical structural components. In addition, bending, torsional strength of the same, lighter, so it is widely used in the manufacture of mechanical parts and engineering structures. Also used in producing all kinds of conventional weapons, the barrel, shells and so on. Any open at both ends and having a hollow cross section and relatively large cross-section of the steel perimeter and its length, can be called a pipe. When relatively small length and cross section of the perimeter can be called pipe or tubular parts, they all belong to the category of pipe products. Six decades, architects have been made of stainless steel to build cost-effective permanent structures. Many of the existing buildings fully explained this choice is correct. Some are very ornamental in nature, such as New York City's Chrysler Building. But in many other applications, the role of stainless steel is not so noticeable, but it plays an important role in the aesthetics and performance of buildings. For example, since the stainless steel has more wear resistance and resistance to indentation than other metallic materials of the same thickness, so the construction of large population movements sidewalk in place, it is the material of choice for designers. Stainless steel used in the construction of new buildings and restoration of historic monuments for structural materials for more than 70 years. Early design is calculated in accordance with the basic principles. Today, design specifications, for example, ANSI standards of the American Society of Civil Engineers / ASCE-8-90 "cold formed steel structure design specifications" and NiDI published jointly with the Euro Inox "structural steel design manual 'has simplified the long life, good architectural design integrity of the structure.

Zhejiang Zhengkang Industry Co., Ltd was founded in 1999. It is located at national economic development zone, Wenzhou Binhai Industrial Zone. It covers an area of 40 acres with the total investment more than 36.76 million US Dollar and annual production value over 58 million US Dollar. It is a professional metal pipe manufacturing enterprise integrated of R&D, manufacturing and marketing. Zhengkang is specialized in producing double-press thin-walled stainless steel tube and fittings, carbon steel tube and fittings, single-press tube and fittings, stainless steel strip, and etc. By insisting on the tenet of [market based, product founded, human resource oriented and technology driven", the company keeps on improving and innovating. At present, we have developed series tube products of multiple connections. The independent developed bulge thin-walled stainless steel pipe has been authorized several national invention patent rights. On the other hand, the German-standard double-press, Japan-standard double-press and groove thin-walled metal pipe have been authorized favorable market accreditation worldwide. Zhengkang thin-walled metal pipes have multiple connecting methods, which are suitable for wide applications in various fields. Our output capacity of thin-walled stainless steel pipe & fittings and carbon steel pipe & fittings are over 8,000 tons, which are widely applied in restaurant, hotel, hospital, firefighting, food, beverage, ship, engine, industrial seawater desalination and systems of direct-drinking water, cold /hot water supply, city water supply, gas of large/middle scale construction projects. Our sales & marketing network has distributed all around the main cities in China, as well as exporting to Europe, Southern-east Asia and other countries and areas, with favorable future. We abide by the service concept of "best quality, best service for 100 years", keep improving and persist in innovating. We try our best to better the product at each detail and make the products with the same service life as the building and without maintenance. At present, the company has gained ISO9001 Quality Management System Certification, ISO14001 Environmental Management System Certification, National Industrial Stainless Steel Production License, Health License of Department of Public Health of Zhejiang Province and so on. And the company has passed the sampling inspection by National Building Materials Testing Center and test by Chinese Center for Disease Control and Prevention. Moreover, the company has been awarded the honor of "new products of domestic technology evaluated by Zhejiang Scientific and Technological Commission", "products for construction building proposed by Construction Department", "Zhejiang Province Hi-tech Enterprise" and so forth. Zhengkang, a member of Water Supply and Sewerage Equipment Branch Committee of China Construction Metal Structure Association, successfully joined World Plumbing Council on July 15, 2009. Zhengkang people will work with unremitting effort to the healthful water of the world. Hygienic drinking water comes from Zhengkang Pipe. We always keep in mind that we should provide high-quality environment-protective pipes for people all over the world. We keep on developing and innovating for Zhengkang to be a national and even international metallic pipeline pioneering brand.

Detail Description Bulge Equal Coupling is made from stainless steel 304 Bulge connection. Bulge one circle ring at each end of the pipe, then cover it with a seal ring and closely connect with bulge nut After that, screw the nut tight, so that the seal ring and the pipe bulging ring avoid leaking The relevant development and production standard are of enterprise standards, higher than the state standard Relevant inspection and certification departments have issued report on the product safety, which is favorable for use Bulge connection is the patent product of our company as well as Zhejiang hi-tech product, being widely used in China

Stainless Steel Seamless Pipe is a hollow bar, there`re lots of using for SS seamless pipe, like convey oil,chemical fertilizer gas, mechinical machine,water, gas.Stainless Steel Seamless Pipe could divided into three parts: hot-rolled, cold-rolled and hot extrusion through rolling method. And also could divided into four parts: Semi ferrite semi Markov system, Martensitic, Austenitic, Austenitic-Iron system. Here are lots of usual grade for your reference: Austenitic Stainless Steel: 304/304L/304H, 316/316L, 316Ti, 321, 309S, 310S, 317L, 321H, 347H Duplex Stainless Steel: S32001, S32003, S31500, S32304, S31803, S32750, S32760, S32101 Super Austenitic Stainless Steel: 904L, S30432, S31042, 6Mo Nickel Base Alloys: Alloy 20, Monel 200, Monel 400, Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825, Inconel 600,4J29, 4J36, GH3030, GH3039, C276 Martensitic Stainless Steel: 410, 410S, 420 Ferritic Stainless Steel: 405, 430

According to the report from Ministry of Commerce, the prices of edible agriculture declined slightly in 36 cities in China last week, and it was estimated that prices will continue to fall. Meanwhile, prices of stainless steel material also declined by 1.5 percent from the previous week. The price of rebar and hot rolled stainless steel sheet were reduced by 1.8%. Catering to the market quotation, our company has adjusted some price as below. stainless steel rebar reduced by 4.8$/ton. stainless steel strips reduced by 13$/ton stainless steel bar reduced by 16$/ton stainless steel coil wire reduced by 25$/ton Please do not hesitate to contact us if you have any question about stainless steel products.

The common misconception many people have about stainless steel is that it is something that will not stain, rust or corrode. However, the reality is that only A316 or what they call [true stainless steel" falls under this category. Anything lower is considered mild stainless steel like the A308 and it will corrode or rust because it has iron. Lower quality of stainless steel usually is porous which means if it comes into contact with certain corrosive and stain-prone elements like coffee or tea. It must be emphasized though that even the lower quality stainless steel will not rust but will look worn down because of the stains. For industrial grade stainless steel, it is imperative that high quality stainless steel be used because it should last more than one lifetime. The chromium content should meet a minimum requirement to produce enough chromium oxide layers on the surface of the stainless steel. Chromium oxide is an inorganic compound that is used to block air on stainless steel to prevent corrosion. This is the compound that keeps stainless steel stainless. Once this layer is chipped, brushed, or cleaned with a harsh tool like steel wool it will start to get stains and develop rust. Some companies have used the term [corrosion resistant" instead of stainless steel when explaining their products to buyers to differentiate the classification of stainless steel products. Other companies are more technical and refer to the alloy number instead like 316 to represent a high quality of stainless steel. History will show that stainless steel became a household term because it appealed to housewives. There are also different kinds of stainless steel types from 3 different countries: United States, England, and Germany. The French refer to stainless steel as [inox steel" from the French word [inoxydable." This is more of a steel allow with up to 11% chromium content.