The advantages of stainless steel heating tube are: good heat resistance, dry burning resistance, mature technology and low cost. At present, there are many types of stainless steel heating tubes used by various instant electric water heater manufacturers, and the price difference between various tubes is large. The same is the stainless steel electric heating tube, the difference in quality and performance is also very large. The difference between the quality of the stainless steel electric heating tube is mainly due to the different nickel content. Nickel is an excellent corrosion-resistant material. When it is combined with chromium in stainless steel, the corrosion resistance and process performance of the stainless steel are improved. However, for low-carbon nickel steel to obtain a pure austenitic structure, the nickel content should be 24%, and only when the nickel content is 27%, the corrosion resistance of the steel in some media is significantly changed. Therefore, from the material point of view, 800, 840, 316L is relatively good corrosion-resistant and high-temperature resistant stainless steel electric heating tube, 800 stainless steel tube contains 30% nickel, 840 tube nickel content reaches 20%, but if it is poor Some 304 stainless steel tubes contain only 8% nickel. Therefore, the use of high-temperature resistant high temperature corrosion resistant stainless steel heating tubes is also very advantageous.
product description
1. Commonly used stainless steel materials: 201,, 304, 321,, 316L
2. Specification range: outer diameter 7.5mm-18mm, wall thickness 0.4mm-1.5mm
3. Tolerance range: outer diameter: ±0.1mm, wall thickness: ±0.01mm, length: -0/+15mm
4, length: according to customer requirements
5, product advantages: surface polishing fine, uniform wall thickness, tolerance and so on.
6. General delivery product status: bright