What is a stainless steel sanitary tube?
The sanitary stainless steel drinking water pipeline and stainless steel pipe fittings adopt German advanced double clamp connection technology, which has changed the traditional water supply materials and connection methods, effectively solved the problem of secondary pollution of drinking water, and is known as "2 1 century green pipeline".
Stainless steel sanitary pipe is a kind of long steel pipe with hollow section and no seam around it. The thicker the wall thickness of the product, the more economical and practical it is, and the thinner the wall thickness, the higher the processing cost. The technology of this product determines its limited performance. Generally, the precision of seamless steel pipe is low, such as uneven wall thickness, low brightness inside and outside the pipe, and high length cost.
And there are pits and black spots on the inner and outer surfaces, which are not easy to remove; Its detection and shaping must be done offline. 304 or 3 16L stainless steel pipe, sanitary steel pipe and stainless steel pipe (manufacturer, specification); Therefore, it shows its advantages in high pressure, high strength and mechanical structure materials. Main applications
Stainless steel sanitary tubes are mainly used for beverages,
Liquor, bioengineering, food and other production equipment and assembly lines. People mainly require the surface smoothness, passivation layer and oil prohibition of stainless steel sanitary pipes: 1. Surface polishing: the inner and outer surfaces of stainless steel sanitary pipes are polished to make the steel pipe surface smoother and brighter, which is what we often call mirror surface. The main purpose is to prevent the fluid substances walking in the pipeline from forming wall hanging in the pipeline, which is easy to be polluted and blocked in the pipeline after a long time.
2. Passivation layer: After the steel pipe is polished, it should be soaked in a passivation pool, and the surface of the steel pipe should be oxidized with acidic passivation solution to form a passivation layer, so as to achieve the anti-corrosion effect of the steel pipe.
3. Extent of oil prohibition: After passivation, oil prohibition cleaning shall be carried out to remove oil stains on the steel pipe surface. After completion, it needs to be checked by an oil analyzer. Mainly to prevent the oil pollution of the pipe wall itself from polluting the fluid substances in the pipe.
Characteristics of stainless steel sanitary pipeline
Most stainless steel sanitary pipe products are made of high-quality imported 304 stainless steel, which ensures that the pipes are hygienic, non-toxic and pollution-free, and fully conforms to the national GB/T17219-2001drinking water transmission and distribution equipment safety evaluation standard and CJ/T 15 1-20065438. Mainly used in water supply and drainage, hot water, cold water, heating and direct drinking water fields.
As a widely used steel,
304 stainless steel sanitary pipe has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good stamping, bending and hot working properties, no heat treatment hardening phenomenon (no magnetism, use temperature-196℃~800℃). It can be used for household articles (1 and two kinds of tableware, cabinets, indoor pipes, water heaters, boilers and bathtubs), automobile parts (wipers, silencers and molded products), medical devices, building materials, chemistry, food industry, agriculture and ship parts. 304L stainless steel sanitary pipeline belongs to low carbon austenitic stainless acid-resistant steel, which has general intergranular corrosion resistance, excellent corrosion resistance and cold working stamping performance, strong corrosion resistance to oxidizing acids (such as nitric acid), and certain corrosion resistance to alkaline solutions and most organic and inorganic acids. This steel is suitable for manufacturing deep drawing parts, as well as acid pipes and acid storage containers. 304H has good corrosion resistance, weldability and good thermal strength.
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