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　　‍Stainless steel small capillaryIt has the functions of corrosion resistance and high temperature oxidation resistance. Under the condition of a large circle area, a round tube can transport more fluid from a small stainless steel capillary tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is relatively uniform. Therefore, most of the steel pipes are round pipes. The small stainless steel capillary tube has a cross-sectional shape other than the round tube. Welded steel pipes are divided into straight seam welded pipes and spiral welded pipes according to the way of welding seams. Classification by production method: process classification-arc welded pipe, resistance welded pipe, (high frequency, low frequency) gas welded pipe, furnace welded pipe. Longitudinal welded pipe has simple production process, high production efficiency, low cost and rapid development. However, compared with the straight seam pipe of the same length, the weld length is increased by 30%, and the production speed is lower.

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Stainless steel small capillaries are widely used in various structural parts, tools and mechanical parts. Compared with round tubes, small stainless steel capillaries generally have larger moments of inertia and section modulus, and have greater bending and torsion resistance, which can greatly reduce the structural component and save steel. Cold drawn or cold rolled stainless steel small capillaries are used for mechanical structures and hydraulic equipment with high dimensional accuracy and good surface finish. The use of small stainless steel capillary tubes to make mechanical structures or hydraulic equipment can greatly save mechanical processing man-hours, improve material utilization, and at the same time help improve product quality.

The general characteristics of small stainless steel capillaries: beautiful surface and diversified use possibilities, good corrosion resistance, longer durability than ordinary steel; good corrosion resistance and high strength, so the possibility of using thin plates is high; high temperature oxidation resistance and high strength, so it can Fire resistance; normal temperature processing, that is, simple plastic processing; because it does not require surface treatment, it is simple and simple to protect; clean, high finish; good welding function.