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Decorate the house to choose copper pipe or stainless steel furniture pipe? To compare!

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Since the implementation of the new national standard on August 1, 2019, indoor water supply pipelines have been required to adoptstainless steel furniture tubeand copper pipe. What is the difference between these two pipes, and which of the many pipes is more prominent? Zhonglian Stainless Steel Products Factory will introduce the difference between stainless steel furniture pipes and copper pipes.


1. Hygienic performance comparison


Stainless steel is a material that can be implanted into the human body. It is safe, non-toxic and clean. Stainless steel furniture pipe eliminates the problem of "red water, blue-green water, dark water", no peculiar smell, no scaling, no harmful substance precipitation, keep the water quality pure, and harmless to the human body.


Copper pipes have excessive copper, corrosion caused by blue and green water corrosion bitterness, and scaling phenomenon. Copper tube is easy to corrode to produce patina, which has the effect of convergence, stimulation and corrosion on human mucosa. It causes reflex vomiting and has a strong stimulating effect on the intestines. Modern medical research shows that drinking too much copper water (whether it reaches the level of blue-green water or not) is extremely harmful to health.


2. Material differences


thin wallstainless steel furniture tubeIt has strong corrosion resistance and can be passivated with an oxidant to form a tough and dense chromium-rich chromium oxide (Cr2O3) protective film on the surface to effectively prevent further oxidation reactions.


The surface of the copper tube is easy to corrode, but the passivation ability of the copper tube is very small. When using copper pipes, it is necessary to control the chemical composition and speed of the water. When the flow rate reaches 2 m/s, the corrosion degree of the copper pipe is about 3 times that of the thin-walled stainless steel furniture pipe, and when the flow rate exceeds 6 m/s, the corrosion degree will be as high as 20 times that of the thin-walled stainless steel furniture pipe.


3. Differences in utilization


The service life of stainless steel furniture pipes and water pipes is the same as that of buildings, which is equivalent to the service life of copper pipes.


However, due to the high price of copper raw materials, the price of copper tubes is high, about 40% lower than thin-walled copper tubes, and thin-walledstainless steel furniture tubeThe life cycle cost is lower than that of copper pipe. Therefore, the economic value of thin-walled stainless steel pipes is significantly better than copper pipes. As thin-walled stainless steel pipes and water pipes once used, in the 100-year life cycle does not need to be replaced, other pipes can not reach such a long service life, as long as the 70-year life cycle of the building to replace once, the comprehensive cost is at least 2 to 4 times the initial investment of thin-walled stainless steel furniture pipes and water pipes.


4. Application differences


The standard for many five-star hotels requires copper pipes for the water supply system. However, due to cost and market reasons, more and more hotels now accept stainless steel furniture pipes, which can be used not only for water supply systems, but also for gas pipes and fire pipes. And is widely used, far more than copper pipe.


Although stainless steel furniture pipes and copper pipes are good and excellent pipes, the gold pipe industry Bian Xiao believes that in the current use and promotion, it shows that the purchase of low-cost, cost-effectivestainless steel furniture tubeIt is more common than copper pipe and more in line with the needs of the public.