How much wall thickness should I buy when installing 304 stainless steel water pipes in my own home?
When purchasing stainless steel water pipes, many customers feel that the thickness of the water pipes determines the quality of the pipes. The thicker the wall thickness of the stainless steel pipes, the higher the quality of the water pipes. Is this opinion appropriate? Understanding is a misconception, and distinguishing the quality of stainless steel water pipes cannot be judged by perception alone. Increasing the understanding of stainless steel pipes is the best way to identify the quality of pipes. At present, the stainless steel water supply pipes are all thin-walled. The stainless steel water pipes have high tensile strength, corrosion resistance, long-term application without precipitation of harmful substances, smooth inner walls, not easy to accumulate scale, and are sanitary water supply pipes.

304 seamless pipe wall thickness standard and allowable deviation size (Figure 1) Many people who buy stainless steel pipe think that the thicker the wall thickness, the better, in fact it is not necessary, if the wall thickness is too thick, then the inner diameter of the pipe It will be narrower and the water output will be smaller. If you want to have a larger inner diameter of the pipe, you need to buy a stainless steel water pipe with a larger specification and model. As a result, the cost of the pipe will increase. At present, there are two series of thin-walled stainless steel water pipes produced by domestic manufacturers, which are divided into national standard 1 series and national standard 2 series. Under the same nominal diameter (DN), the outer diameter and wall thickness of these two thin-walled stainless steel water pipes may be different. will vary. Traditional connection methods such as welding and flanges can only use thick stainless steel pipes due to the characteristics of their installation process. In order to ensure the connection strength and welding reliability of the pipeline, the wall thickness of the stainless steel pipe is generally required to be more than 2.0 mm. At present, the most commonly used stainless steel water pipes in the home improvement market are double-pressed stainless steel water pipes. The pressure resistance is generally between 1.6MPa and 2.5MPa. The diameter of pipes used in self-built houses or large villas may be relatively large, so most home improvement uses DN15~DN50. Within, the normal thickness is 0.8mm~1.2mm. In the case of ordinary household and commercial housing renovation, a wall thickness of 0.8mm is basically sufficient.
304 seamless pipe wall thickness standard and allowable deviation size (Figure 2) The wall thickness of the pipe is a rigid condition, not only the strength of the pipe connection, but also the anti-seismic performance and the anti-shock performance of the pipe in various environments. As well as the service life and corrosion resistance of pipelines in concealed projects. The above is the relevant knowledge about thin-walled stainless steel water pipes. If you normally consider choosing decoration pipes, you do not know which wall thickness should be selected for 304 stainless steel water pipes for home decoration. You can also consult the customer service of stainless steel water pipe manufacturers! All in all, when purchasing stainless steel water pipes, you should choose a well-known brand and a manufacturer with good user evaluation to carry out the purchase, and the product quality and safety will be more guaranteed.

Size and allowable deviation of national standard seamless steel pipe
Dimensions and tolerances: Deviation class D1: Standardized outer diameter tolerance ±1.5%, minimum ±0.75 mm Deviation class D2: Standardized outer diameter tolerance ±1.0%. Minimum ±0.50 mm Deviation grade D3: Standardized outer diameter tolerance ±0.75%. Minimum ±0.30 mm Deviation class D4: Standardized outer diameter tolerance ±0.50%. Minimum ±0.10 mm 2. The national standard seamless steel pipe is made of steel ingots or solid tube blanks through perforation to make capillaries, and then hot-rolled, cold-rolled or cold-drawn. 3. The national standard seamless steel pipe is made of steel ingots or solid tube blanks through perforation to make capillaries, and then hot-rolled, cold-rolled or cold-drawn. National standard steel pipes have an important position in my country’s steel pipe industry. According to incomplete statistics, there are more than 240 national standard steel pipe manufacturers in my country, more than 250 sets of seamless steel pipe units, and an annual production capacity of about 4.5 million tons. 4. Classification: Seamless steel pipes are divided into two categories: hot-rolled and cold-rolled (dial) seamless steel pipes. (1) Hot-rolled seamless steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.