How to identify the quality of stainless steel heating rods

The first is that the quality of stainless steel is the key to the difference in the moisture content of nickel. Nickel is a high-quality anti-corrosion element. In stainless steel plates, it is extremely compatible with chromium to deepen the corrosion resistance and corrosion resistance. For carbon-environment-friendly nickel steel to obtain a pure martensitic structure, the nickel content must exceed 28%, and the corrosion resistance of the steel in some media must be significantly changed only when the nickel content is 21%. Therefore, for the heating pipe, for more advanced distribution of corrosion resistance and heat resistance, 700, 840, 317L and other materials can be selected. 700 stainless steel pipe contains more than 40% nickel, 840 pipe contains more than 30% nickel, and 317L stainless steel pipe contains nickel. The amount of water is 12%, but if some 316 pipe stainless steel plates are selected, the nickel content can only be 8%.

Advantages of stainless steel heating pipe: good temperature resistance, heat resistance, corrosion resistance, cost is equal to a relatively low cost performance, at this stage there are many types of stainless steel heating pipe, the price of various materials varies widely, the same is stainless steel plate, The quality characteristics are also quite different.

Therefore, the purchase of stainless steel pipes for heating pipes must be inspected for the moisture content of its main elements to avoid counterfeiting and inferior products, and to buy low-quality goods at sky-high prices.