Stainless steel pipes can be found everywhere in our daily use. I believe many friends are asking why there are so many stainless steel pipe products in our life, so the following Xin coral small series will help everyone from the three characteristics of stainless steel pipes. Better to understand.
1, corrosion resistance
Most stainless steel products require good corrosion resistance. Stainless steel tubes are similar to Class I and Class II cutlery, kitchen appliances, water heaters, water dispensers, etc. Some foreign traders also tested the product for corrosion resistance: using a NACL aqueous solution to warm to boiling, after a while the solution was drained, washed and dried to determine the weight loss to determine the degree of corrosion.
2, welding processability
The requirements for soldering performance vary by product. A tableware usually does not require soldering properties and even includes some pot companies. However, most products require raw materials with good welding properties, such as second-class tableware, vacuum flasks, steel pipes, water heaters, water dispensers, etc.
At present, stainless steel products are generally polished in the production process, and only a few products such as water heaters, water dispenser linings, etc. do not need to be polished. Therefore, this requires good polishing performance of the raw material. The main factors affecting the polishing performance are as follows:
1 raw material surface defects. Such as scratches, pitting, soaking, etc.
2 stainless steel pipe raw material problems. The hardness is too low, it is not easy to polish during polishing (BQ is not good), the hardness is too low, and the surface of the skin is prone to orange peel when deep drawing, which affects the BQ performance. High hardness BQ is relatively good.
3 After deep drawing, small black spots and RI high imitation DGING will appear on the surface of the deformed area, which will affect the BQ property.