beam impact tubes

Jagged on the stainless steel pipes, currently on the market is not the same as the raw material price nature have high low, as a general consumer, how you tell the difference between 304 and 201 stainless steel pipe. Below small make up with the three methods, to teach you the difference between 304 and 201 stainless steel pipe:
1, watching the anti-fake mark on stainless steel pipe. Stainless steel pipe in the general case are playing anti-fake mark, on the surface of the concrete is playing in one of the pipe fitting, generally 60 ~ 100 cm right in the middle will have an anti-counterfeiting mark, anti-counterfeit marking generally contains such contents: the raw material of the stainless steel pipe, stainless steel pipe producers or famous brand.
2, 304, and 201 stainless steel pipe, generally for inferior smooth surface. On the basis of people watching, to identify the hands touching way: 304 stainless steel pipe has good smoothness, hand touch very smooth; 201 stainless steel sheet, color dark no smoothness, touch feel more uneven uneven. Wet water, in addition to hand touch 2 kinds of metal materials, the water damage of the put apart after touching hands fingerprints, the comparison of 304 stainless steel plate is easy to wipe down, 201 is not easy to wipe down.
3, use polishing machine fitted with two board or tube polishing disc slowly grinding polishing, buffing 201 raw materials of flame is long, thick, many, in turn, 304 flame short, thin, less raw material. Remember that fine polishing when the strength of the light and amplitude of direction such as consistent as far as possible.
Stainless steel pipe is a hollow oblong steel, widely used in petroleum, chemical, medical, food, industrial pipeline, such as heat exchanger. In addition, when the torsional strength and bending strength at the same time, compared with lighter weight, which is widely used in engineering structures.
With the constant improvement of the life needs. Some large beam impact tubes manufacturing industry development, improve the production of many enterprises. Through the use of these steel pipes to improve the quality of products, to promote it to a new level. This kind of product in the process of production has strict requirements. The production process is also very complex. In the production process can maintain its own function, stability and corrosion resistance is strong. Its production requirement is very high. Different types of 304 stainless steel pipe with different properties.
What is the 304 stainless steel?
304 stainless steel is a kind of austenitic steel, contains 35% of nickel, chromium content of 16% to 24%. 18-8 is the most common type of 304 stainless steel or steel 18/8, consisting of 18% 8% of the nickel and chromium; Still contain among them about 0.03% of the sulfur, carbon, nitrogen, 0.08% 0.1% and 0.75% 2% of silicon, manganese and 0.045% of phosphorus.
When many people see: 304 stainless steel pipe is used in impact beam tubes indoor or indoors? May think this is used in indoor is a good choice, of course, for this statement, correct or not, so to speak, why so? If adopted 304 stainless steel pipe is the use of service pipe class, so, interior and interior is can use, because of the corrosion resistant performance is good, not easy to rust, is building water supply of high quality pipe.
But if 304 stainless steel pipe is used for other purposes (except water), so its use is mainly outdoor, for example, decoration class use stainless steel tube, and the use of stainless steel tube in 304 stainless steel pipe is used, the main choice for outdoor use 304 material is to prevent corrosion, such as material 201 won't be used in outdoor, because the effect of its resistance to corrosion is lower than 304 for outdoor easy to rust.