Stainless steel seamless steel pipe is a kind of hollow strip steel, which is resistant to weak corrosive media such as air, steam and water and chemical corrosive media such as acid, alkali and salt. It can be used for a large number of pipes used for conveying fluids, such as oil, natural gas, water, gas, steam, etc. In addition, when bending and torsional strength are the same, the weight is relatively light, so it is also widely used for manufacturing mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, barrels, shells, etc.
Because stainless steel seamless pipe is a kind of long steel with hollow section and no seams around it, the thicker its wall thickness is, the more economical and practical it is. The thinner its wall thickness is, the higher its processing cost will be.
The process of stainless steel seamless pipe determines its limited performance. Generally, the precision of seamless steel pipe is low: the wall thickness is uneven, the surface brightness inside and outside the pipe is low, the sizing cost is high, and there are pits and black spots on the inside and outside of the pipe, which are difficult to remove; Its detection and shaping must be processed offline. Therefore, it has its advantages in high pressure, high strength and mechanical structure materials.
All stainless steel pipes are made of imported first-grade normal stainless steel plates, featuring no sand holes, no sand holes, no black spots, no cracks, and smooth weld bead. Bending, cutting, welding processing performance advantages, stable nickel content, products meet Chinese GB, American ASTM, Japanese JIS and other specifications.
Product features:
First, the thicker the wall thickness of stainless steel seamless pipe, the more economical and practical it will be. The thinner the wall thickness, the higher its processing cost will be;
Secondly, the process of stainless steel seamless pipe determines its limited performance. Generally, the precision of seamless steel pipe is low: the wall thickness is uneven, the surface brightness inside and outside the pipe is low, the sizing cost is high, and there are pits and black spots on the inside and outside of the pipe, which are difficult to remove;
Thirdly, the detection and shaping of stainless steel seamless pipe must be processed offline. Therefore, it has its advantages in high pressure, high strength and mechanical structure materials.
Product materials:
Common materials include 304,304L,316 316L.
Classification of stainless steel pipe
1. Classification by production method
(1) Seamless pipe – cold drawn pipe, extruded pipe, cold rolled pipe
Manufacturing process and flow of seamless steel pipe
Smelting>ingot>steel rolling>sawing>peeling>piercing>annealing>pickling>ash loading>cold drawing>head cutting>pickling>warehousing
(2) Welded pipe
Classified by process – gas shielded welding pipe, arc welding pipe, resistance welding pipe (high frequency, low frequency) (b) Classified by weld seam – straight welded pipe, spiral welded pipe
Stainless steel welded steel pipe
Welded steel pipe is short for welded pipe, which is made of steel plate or steel strip after being crimped and formed by the unit and mold.
Manufacturing process and flow of welded steel pipe
Steel plate>Splitting>Forming>Fusion welding>Induction bright heat treatment>Internal and external weld bead treatment>Shaping>Sizing>Eddy current testing>Laser diameter measurement>Pickling>Warehousing
Characteristics of welded steel pipe
This product is produced continuously and online. The thicker the wall thickness, the greater the investment in the unit and welding equipment, and the less economical and practical it is. The thinner the wall, the lower its input-output ratio will be; Secondly, the process of the product determines its advantages and disadvantages. Generally, the welded steel pipe has high precision, uniform wall thickness, high surface brightness inside and outside the pipe (the surface brightness of the steel pipe determined by the surface grade of the steel plate), and can be arbitrarily sized. Therefore, it embodies its economy and beauty in the application of high-precision, medium-low pressure fluid.
2. Classification by section shape
(1) Round steel pipe
(2) rectangular pipe
3. Classification by wall thickness
(1) Thin wall steel pipe
(2) thick wall steel pipe
Post time: Jan-28-2023
