The application of stainless steel welded pipe in seawater desalination device

For seawater desalination technology, energy conservation and the development of practical method is to use an evaporative enrichment equipment - VVCC (that is, the vacuum and evaporation, condensation, aggregation). The device adopts the heat pump, stainless steel welded pipe can use evaporation and transform it into heat energy supply system, so as to realize the energy conservation. And if cooperate with various technologies from concentrate recovery of valuable materials, and coagulation shrink as the pure water available. Such a system is indispensable to circular society, and stainless steel in every part of the device has played an important role.

Analysis on the current situation of world stainless steel production capacity and product development

In the past 30 years, global stainless steel output has been an average of more than 5% growth rate. In recent years, different regions of the world steel production is different, while the stainless steel production in Asia has a remarkable increase. Although the development of stainless steel in less than 100 years, but the stainless steel has been shown to be a metal material production growth is the fastest, and its production in recent years the growth rate even more than the plastic production growth rate. Stainless steel production has such a high growth rate of driving force lies in it has some of the characteristics of: resistance to corrosion and oxidation resistance and high strength to weight ratio, good rolling formability, weldability and low-temperature toughness etc..

How to identify the authenticity of stainless steel pipe

How to identify the authenticity of stainless steel pipe?

There are four ways to identify the authenticity of stainless steel pipe.

One, Magnetic test is the most simple way to distinguish between annealed austenitic stainless steel pipe and ferrite stainless steel pipe. Non magnetic steel is austenitic stainless steel, but the high pressure after cold working with mild magnetic; and pure chromium steels and low alloy steels is strong magnetic steel.

Reasons for cracking of austenitic stainless steel elbow

Titanium sponge production process often used stainless steel tube cooler for cooling four titanium tetrachloride, and four titanium tetrachloride contact material for austenitic stainless steel (1Cr18Ni9Ti), and the cooling medium contact material for Q235A steel. The hot side of the casing pipe cooler is welded by 180 degrees stainless steel elbow.

Method for use of stainless steel elbow

The main alloying element in stainless steel is a Cr (Cr), only when the Cr content reaches a certain value, the steel corrosion resistance. The corrosion resistance of stainless steel decreases with the increase of carbon content, and therefore, most of the stainless steel and carbon content are low, the largest of no more than 1.2%, some steel wC (carbon content) and even lower than 0.03% (such as 00 cr12).

Corrosion resistance of all kinds of stainless steel by yaang.com

​304 stainless steel is a kind of universal, it widely used for requirements of making good comprehensive properties, resistance to corrosion and formability of equipment and parts.

The material of stainless steel flange By yaang.com

The material of stainless steel flange is according to the different models and different use, chemical composition and production. Stainless steel can be use, chemical composition and microstructure to general classification.

What is the use of stainless steel flange solution By yaang.com

Austenitic stainless steel with solid solution treatment to soften, the steel wire are heated to a temperature of about 950 ~ 1150 ℃, heat preservation for a period of time, make the carbide and various alloy elements fully dissolved in austenite, evenly and rapid quenching water cooling, carbon and other alloying elements can not afford time to precipitate, obtain pure austenitic organization, called the solid solution treatment. The effect of solid solution treatment with three points.

The chemical identification method of stainless steel By yaang.com

Stainless steel, it is to point to weak corrosive medium such as air, steam, water resistance and acid, alkali, salt and other chemical etching medium corrosion of the steel, also called acid-proof stainless steel. Stainless steel itself because of its corrosion resistance, high temperature resistant, wear resistant features, in our country focus on the development of energy, petrochemical, electric power, mining and other fields will be more active to play its role. Products include stainless steel flanges and stainless steel pipe fittings.

How to mark large stainless steel flange By yaang.com

Corrosion resistance of stainless steel with the increase of carbon content and reduce, therefore, the majority of stainless steel carbon content are lower, the maximum not more than 1.2%, some steel Wc (carbon content) and even less than 0.03% (such as 00Cr12). The main alloying element in stainless steel is Cr (CR), only when the Cr content reaches a certain value, the steel has the corrosion resistance. Therefore, the stainless steel general Cr (CR) content of at least 10.5%. Stainless steel also contains Ti, Mn, Ni, N, Nb, Mo, Si, Cu and other elements.

Seven steps of stainless steel flanges derusting By yaang.com

Stainless steel, an alloy of iron that contains ten percent chromium, is a very resilient material used in a wide range of household and industrial products. It's resistant to rust and tarnish due to the chromium film on its surface. If this chromium film is removed, the utensil will begin to rust.

Production standard and process of stainless steel reducer By yaang.com

Reducer decorated capitulum is one of the chemical pipe fittings, used for two different diameter of the connection. Is divided into concentric reducer and eccentric reducer.

Stainless steel reducer according to certain standards, and in the production process for production, ensure the production of the reducer can play an important role in the field of a certain industry and performance, can give full play to the role and value in the industry. Reducer in production need to use production standard is as follows:

Process flow technology of elbow By yaang.com

1, hot forming
Hot push bend forming technology is to use special elbow push system core machine, 
mold and heating device, to set on the mold of billet in pushing forward movement, under the impetus 
of the machine in motion is heated and hole enlargement and forming process.

The advantages and disadvantages of stainless steel pipe fittings are introduced in detail

The advantages of stainless steel pipe fittings are introduced:
Such as stainless steel elbow, tee: stainless steel pipe fittings due to easy to clean, beautiful appearance, 

Stainless steel flange production to the factory should have 10 technical requirements

The corrosion resistance of stainless steel decreases with the increase of carbon content, and therefore, 

most of the stainless steel and carbon content are low, the largest of no more than 1.2%, some steel Wc (carbon content) 

The Wide Range Applications Of Stainless Steel Seamless Pipe By yaang.com

The value of stainless steel seamless pipe:
It is worth noting that the stainless steel seamless pipe which can not rust, resolutely resist any form of corrosion and anticorrosion, but it is not completely immune. Only gold and platinum is completely from corrosion, stainless steel seamless pipe can say unlimited application is the most economical choice.

Selection 304 303 316 Types Stainless Steel for Seawater Application By yaang.com

316 types stainless steel are used widely in marine application, but their corrosion resistance in contact with seawater is limited and they cannot be considered 'corrosion proof' under all situations. They are susceptible to localized attack mechanisms, principally crevice and pitting corrosion. This limits the scope for the use of these steels in seawater contact.

Salt Spray Testing of Stainless Steel By yaang.com

Salt spray testing is an accepted method for assessing the suitability of stainless steel parts and fabrications that are likely to encounter chloride environments in service.

Stainless steel is defined as iron alloys with a minimum of 10.5% chromium. Other alloying elements are added to enhance their structure and properties, but fundamentally, stainless steel tubes are considered for selection as steels with corrosion resistant properties.

Stainless Steel " L" "H" Grade By yaang.com

Austenitic stainless steel grades are those alloys which are commonly in use for stainless steel applications. The austenitic stainless steel grades are notmagnetic. The most common austenitic alloys are iron-chromium-nickel steel and are widely known as the 300 series. The austenitic stainless steel pipe, because of their high chromium and nickel content, are the most corrosion resistant of the stainless steel group providing unusually fine mechanical properties. They cannot be hardened by heat treatment, but can be hardened significantly by cold-working. Straight Grades