Which Brand Of 304 And 316 Stainless Steel in China Is Better

Kunshan Meiyaxing Hardware Machinery Co., Ltd. is a direct branch of Hong Kong Meiya International Trading Company in China. It has its own tool brand: MANF, engaged in CNC tool sales and operation services. The company has advanced production equipment such as Swiss ROLLOMATIC, German WALTER, Japanese MAKINO SEIKI, and German ZOLLER- -GENIUS 3S, American PG 1000 and other testing equipment. Relying on our services and operations combined with strong R&D and production orientation, we can solve various tool problems for processing and manufacturing companies. In this way, we will become a professional "professional partner integrating tool overall solution-cost optimization service", with the aim of achieving product processing cost optimization as the starting point, so as to achieve mutual benefit and common development.
Between 304 and 316 stainless steel, 316 stainless steel has better corrosion resistance than 304 stainless steel. It has good corrosion resistance in pulp and paper production. In addition, 316 Stainless steel is also able to resist corrosion from marine and corrosive industrial atmospheres.
Generally speaking, there is little difference between 304 and 316 stainless steel in terms of chemical resistance. However, there are differences in certain environments.
The first stainless steel developed was 304. In some cases, this material is sensitive to pitting corrosion. An additional 2-3% of molybdenum can reduce this sensitivity. Thus was born 316. In addition, this additional molybdenum can also reduce corrosion from certain hot organic acids.
316 stainless steel has almost become a standard material in the food and beverage industry. Due to the shortage of molybdenum in the world and the nickel content in 316 stainless steel. The price of 316 stainless steel is more expensive than 304 stainless steel.
Pitting is a phenomenon mainly caused by deposition corrosion on the surface of stainless steel. This is because the chromium oxide protective layer will not form when there is a lack of oxygen.
Especially for small valves, the possibility of deposits on the valve plate is small. Therefore, pitting is also rare. Among all kinds of water media (distilled water, drinking water, river water, boiler water, sea water, etc.).
304 stainless steel and 316 stainless steel have almost the same corrosion resistance. Unless the chloride ion content in the medium is high. Now, 316 stainless steel is more suitable.
In most cases, the corrosion resistance of 304 and 316 stainless steel is not much different. But in some cases, it may also be very different. Specific analysis is required.
In general, valve users should understand this. Because they choose the material of containers and pipes according to the conditions of the medium.
316 stainless steel has good oxidation resistance when used intermittently below 1600℃ and continuously below 1700℃. In the range of 800-1575 degrees, 316 stainless steel cannot be used continuously.
When 316 stainless steel is used continuously outside this temperature range, it has good heat resistance. Ultra-low carbon stainless steel 316L has better resistance to carbide precipitation than SS316. It can be used in the above temperature range.
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