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Classification and characteristics of stainless steel pipe
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PostPost subject: Classification and characteristics of stainless steel pipe
Posted: Wed Jan 10, 2018 4:14 pm
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Stainless steel pipe is a kind of hollow strip steel, mainly two kinds of seamless steel pipe and welded steel pipe, often used as a pipeline for conveying fluid, such as oil, natural gas, water, gas, steam, etc. When the bending strength is the same, the weight of the stainless steel tube is relatively light, so it is widely used to produce mechanical parts and engineering components. It is also used to make all kinds of conventional weapons, barrels, shells and so on.
The Classification of stainless steel pipe
According to the production method of stainless steel pipe, seamless steel pipe can be divided into cold drawn tube, extruded pipe, cold rolling pipe.
stainless steel seamless pipe manufacturing process in the order of smelting, ingot, rolling, sawing, peeling, perforation, annealing, pickling, ash, cold drawing, cutting head, pickling, storage.
Stainless steel pipe can also be classified according to cross-section shape, divided into circular steel pipe, rectangular tube. And by wall thickness classification of thin-walled steel pipe, thick-walled steel pipe. The use of steel pipe to divide, can be divided into civilian pipe: sub-tube, rectangular tube, flower tube, generally used for decoration, construction, structure, etc.; industrial pipe: industrial pipe with pipe, general pipe with pipe (drinking water pipe ), Mechanical structure / fluid delivery pipe, boiler heat exchange tubes, food hygiene pipes and so on. Usually used in various fields such as: petrochemical, paper, nuclear, food, beverage, pharmaceutical and other industries on the fluid medium requires a higher pipeline.
The characteristics of seamless steel pipe
From the above process can know a few points, the first stainless steel seamless pipe wall thickness thicker, the more economical and practical, and the thinner wall thickness, the processing cost will be greatly improved; followed by stainless steel processing technology It is usually limited, usually the accuracy of seamless steel pipe will be low, uneven wall thickness, tube inside and outside the table brightness is low, the length of the high cost, and the inside and outside the table is also easy to pitting, black spots, not very good to remove; Three stainless steel seamless pipe inspection and shaping must be off-line treatment. So in the high-pressure, high strength, mechanical structure of the material reflects the superiority of seamless steel pipe.
Stainless steel welded pipe
Again, stainless steel welded pipe, welded steel pipe referred to as welded pipe, steel plate or strip through the unit and mold curling after forming the steel pipe. According to the stainless steel processing technology to divide, there are gas protection welded pipe, arc welded pipe, resistance welded pipe (high frequency, low frequency), and according to the weld to points, there are straight seam welded pipe, spiral welded pipe.
Welded steel pipe manufacturing process and process sequence is the steel plate, sub-section, forming, dissolved, induction light heat treatment, inside and outside the weld processing, shaping, sizing, eddy current testing, laser caliper, pickling, storage.
Welded steel pipe is characterized by the first continuous production on-line, the thicker the wall, the greater the unit and the investment in welding equipment, welded steel pipe is not more economical and practical. And the thickness of the thinner, the input and output ratio will be a corresponding decline; another welding pipe technology to determine its advantages and disadvantages, usually welded steel pipe with high precision, uniform wall thickness, the inside and outside the table brightness is high (steel plate surface grade steel pipe surface Brightness), can be any length. So the welding pipe in the high-precision, low pressure fluid applications reflects its economic and aesthetic.
Source: China Stainless Steel Pipe Manufacturer - Yaang Pipe Industry Co., Limited (www.yaang.com)
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