博文

目前显示的是 十二月, 2019的博文

Processing of Small-diameter Steel Pipes

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Today,  Nickel Alloy Pipe Factory  will share with you the processing of small-diameter steel pipes. Thermal expansion is a processing method of steel pipe seamless steel pipe, and the two-step propulsion pipe expanding machine adopting the taper die expanding the technology of the non-thick-wall steel pipe. Process small diameter steel pipes into large-diameter steel pipes. Thermally expanded seamless steel tubes are slightly less mechanical than hot rolled steel tubes. Limited to steel mills, seamless steel pipe specifications are limited, according to the needs of the end consumers, then the expansion of seamless steel pipe was born. The thermal expansion seamless steel pipe specifications are relatively arbitrarily large, and the thermal expansion seamless steel pipe which is generally produced according to the needs of the customer is a hot expansion pipe which is often said to have a low density but a strong shrinkage of the copper pipe. Such as  ASTM A312 TP304 Seamless Pip

Methods of Storing Austenitic Stainless Steel Pipe

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If the  Austenitic Stainless Steel Pipe  is stored for a long time in the open air, problems such as rust pits, wall thickness reduction after rust, warpage of the anti-corrosion layer, aging of the anti-corrosion layer, etc. may occur, which may cause the steel pipe to be degraded, discarded or re-processed. Waste of resources. Mainly the steel pipe body is uncovered, the cover protection is not ideal, there is no support, the part is the problem of too many stacking layers, and most coastal areas are maritime climate, with large annual rainfall, high air humidity, and steel pipe contact with a steel pipe. Caused by water accumulation in the area.  Nickel Alloy Pipe Factory  recommends that the protection method be: Austenitic Stainless Steel Pipe 1. Whether it is a bare tube or an anti-corrosion tube, if it needs to be stored for a long time, it should be protected by opaque covering when starting storage, to avoid corrosion of the steel tube and aging and warping of the anti-

How to Identify Seamless Pipes and Welded Pipes?

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Seamless Stainless Steel Tube  has a hollow section and is used extensively as a conduit for transporting fluids, such as pipelines for the transport of petroleum, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when it has the same bending and torsional strength. It is economical section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycles. Rings are made of steel pipes such as steel scaffolds used in construction and construction. Steel pipes have been widely used to improve material utilization, simplify manufacturing processes, and save materials and processing time. Seamless Stainless Steel Tube The molding process is different. For example, water pipelines are generally welded by steel plates. After welding, a weld can be found on the top; the diameter is generally a weld of a spiral weld

What is food grade stainless steel?

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Food grade stainless steel refers to the stainless steel material in accordance with the "National Standard of the people's Republic of China / hygienic Standard for stainless Steel tableware containers" GB 964-88.  Its lead and chromium content is much lower than that of ordinary stainless steel. Index regulation: Food grade stainless steel refers to the part of food machinery in contact with food, which must meet the requirements of certain food safety. Because the food production process to use a lot of acids and bases, and stainless steel containing chromium, unqualified stainless steel, will dissolve all kinds of chromium, toxic; and require to limit the content of lead, cadmium and other alloy impurities. Difference between Food Grade stainless Steel and  304 stainless Steel : When the amount of heavy metals transported in stainless steel products exceeds the limit, it may be harmful to human health. Therefore, the production of stainless steel co

Comparison of Duplex Stainless Steel Pipe and Austenitic Stainless Steel Pipe

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The Duplex Stainless Steel Pipe is half of the ferrite phase and the austenite phase in its solidified structure, and the minimum phase content may be as high as 30%. Due to the characteristics of the two-phase structure, DSS combines the advantages of ferritic stainless steel and austenitic stainless steel by properly controlling the chemical composition and heat-treatment process. As a  Nickel Alloy Pipe Factory , let's explain it to everyone. Compared to the Austenitic Stainless Steel Pipe, the advantages of duplex stainless steel are as follows: (1) The yield strength is more than twice that of ordinary austenitic stainless steel, and it has sufficient plastic toughness required for molding. The thickness of the tank or pressure vessel made of duplex stainless steel is 30-50% lower than that of the commonly used austenite, which is beneficial to reduce the cost. (2) It has excellent resistance to stress corrosion cracking, and even the duplex alloy with the lowest alloy