Classification and use of 304 thick-walled stainless steel pipes
First, the classification of stainless steel pipes
1. Classified by production method:
( 1 ) Seamless pipe - cold drawn pipe, extruded pipe, cold rolled pipe.
( 2 ) Welded pipe:
( a ) Â Classified by process - gas shielded welded pipe, arc welded pipe, electric resistance welded pipe (high frequency, low frequency).
( b ) Â According to the weld seam - straight seam welded pipe, spiral welded pipe.
2 , according to the shape of the section: ( 1 ) round steel tube; ( 2 ) rectangular tube.
3 , according to wall thickness classification - thin-walled steel pipe, thick-walled steel pipe
4. Classification by use: ( 1 ) Civil pipe is divided into round pipe, rectangular pipe and flower pipe, which are generally used for decoration, construction and structure;
( 2 ) Industrial pipes: steel pipes for industrial piping, steel pipes for general piping (drinking water pipes), mechanical structures/fluid conveying pipes, boiler heat exchange pipes, food sanitary pipes, etc. Generally used in various fields of industry such as: petrochemical, paper, nuclear, food, beverage, pharmaceutical and other industries have higher requirements for fluid media.
Second, seamless steel pipe
The stainless steel seamless pipe is a long strip of steel with a hollow section and no seams around it.
1 . Seamless steel pipe manufacturing process and process:
Smelting>steel ingot>rolling steel>saw cutting>peeling>perforation>annealing>pickling>ashing>cold drawing>cutting head>pickling>into the warehouse
2. Features of seamless steel pipe :
From the above we can see the process: First, the thicker the wall thickness of the product, it is more economical and practical, the thinner wall thickness, its processing costs will be significantly increased; secondly, the The process of the product determines its limitations. Generally, the seamless steel pipe has low precision: uneven wall thickness, low brightness inside and outside the pipe, high fixed-length cost, and pitting and black spots on the inside and outside, and its black point is not easy to remove; Detection and shaping must be processed offline. Therefore, it embodies its superiority in high-pressure, high-strength, mechanical structural materials.
Third, welded steel pipe
Welded steel pipe is referred to as welded pipe, which is a stainless steel pipe made by welding a steel plate or a steel belt through a unit and a die.
1. Steel plate>Slitting>Molding>Solution>Induction bright heat treatment>Internal and external weld bead treatment>Shaping>Sizing>Vortex detection>Laser diameter measurement>Pickling>Warehousing
2. Features of welded steel pipe :
From the above process, we can easily see that: First, the product is continuously produced online , the thicker the wall thickness , the greater the investment of the unit and the welding equipment , the less economical and practical it is. The thinner the wall thickness, its input-output ratio is equivalent to the percentage; second process of the product determines its advantages and disadvantages, high-precision welded steel pipe generally uniform thickness, the outer high brightness (the surface of the steel sheet grade stainless steel tube is determined The surface brightness of the steel pipe can be arbitrarily fixed. Therefore, it demonstrates its economy and aesthetics in high-precision, medium- and low-pressure fluid applications.
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Biaxial Plastic Geogrid features high tensile strength at both longitudinal(MD) and transverse(TD)directions. It makes soil reinforced with its excellent structure stability and strong mechanical interlock performance.
Applications
• Base reinforcement • Subgrade reinforcement
• Slope reinforcement • Embankment stabilization
Biaxial Geogrid
BX Geogrid,PP Biaxial Geogrid,Plastic Biaxial Geogrid,Polypropylene Biaxial Geogrid
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