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                      1. Home >> News

                        Do You Know the Difference Between 304 Stainless Steel and 316 Stainless Steel?

                        Mar. 28, 2020

                        Do you know the difference between 304 stainless steel and 316 stainless steel? The following 304 Stainless Steel Plate Suppliers and 316 Stainless Steel Sheet Suppliers 世界杯手机投注网introduce you to the following:


                        304 and 316 are austenitic stainless steels, the difference is that 316 adds 2% more molybdenum. In this way, the corrosion resistance of 316, especially the resistance to chloride ion corrosion, is better than 304. The price is about 20% more expensive.


                        304, 316, etc. are all American steel names. 304 corresponds to the domestic grade 0Cr18Ni9. It is versatile stainless steel and is the most commonly used stainless steel. It is widely used to make equipment and parts that require good comprehensive performance (corrosion resistance and formability), such as food equipment, general chemical equipment, etc. 304 has excellent hot and cold processing and forming properties. It can process various products such as plate, tube, wire, belt, and type, and is suitable for manufacturing cold heading, deep drawing, and deep drawing parts. Weldability is normal. Welding can be performed by ordinary welding methods, and no heat treatment is required after welding. However, 304 steel also has shortcomings in performance: large-section steel is sensitive to intergranular corrosion after welding; CL-water (including wet atmosphere) is very sensitive to stress corrosion; low mechanical strength and poor cutting performance Wait.


                        F of 304F stands for sulfur content, which is about 1 times higher than 304, about 0.1, which is better in processing. Secondly, it is a little lacking compared with 304 in terms of rust prevention performance!304L corresponds to the domestic grade 00Cr18Ni11. It is a variant of 304 stainless steel with low carbon content and is used in applications where welding is required. The lower carbon content minimizes the precipitation of carbides in the heat-affected zone near the weld, and the precipitation of carbides may cause intergranular corrosion (weld erosion) of stainless steel in some environments.


                        304 Stainless Steel Pipe

                        304 Stainless Steel Pipe


                        316 corresponds to the domestic grade 0Cr17Ni12Mo2, which is a low-carbon stainless steel and its welding performance are better than 304. Because stainless steel contains molybdenum, its resistance to pitting corrosion in marine and chemical industrial environments is much better than 304 stainless steel. Under high-temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than 85%, 316 stainless steel has a wide range of uses. 316 stainless steel also has good resistance to chloride attack. Among they, the variants of 316 stainless steel include low-carbon stainless steel 316L, nitrogen-containing high-strength stainless steel 316N, and free-cutting stainless steel 316F with high sulfur content.


                        世界杯手机投注网316L is an ultra-low carbon stainless steel with a maximum carbon content of 0.03. It can be used in applications that cannot be annealed after welding and require maximum corrosion resistance. Its corrosion resistance is better than 304 stainless steel and it has good resistance in the production process of pulp and paper Corrosive performance.


                        316 and 316L have good heat resistance and can be used as heat-resistant steel, but 304 is not. In intermittent use below 1600 degrees and continuous use below 1700 degrees, 316 stainless steel has good oxidation resistance. In the range of 800-1575 degrees, it is best not to work continuously. However, when 316 stainless steel is continuously used outside this temperature range, the stainless steel has good heat resistance. The 316L stainless steel plate has better resistance to carbide precipitation than the 316 Stainless Steel Sheet, and the above temperature range can be used.


                        The above are the characteristics and differences between the two products. If you are interested, please contact us.


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