What are the materials for making stainless steel tanks? What is the difference between different models of steel

Panel Type Water Tank / Sectional GRP Panel Tank
Stainless steel insulation tank material is usually 304,316,444,201 these types, then the different models of stainless steel what are the characteristics of it, the water tank today and everyone to understand the next:
Currently on the market the most common of several stainless steel tanks, the stainless steel plate generally have: 304,316,444,201 and so on. In general, stainless steel tanks often use SUS304 sheet, 316 sheets are mostly used in the case of poor water quality 444 plate in the coastal area to use more. As for the 201 plate, should not be used, but because of its cheap, often by some cheap, figure small profits of profiteers secretly use. Several material properties are as follows:
1.SUS304 has good corrosion resistance, heat resistance, anti-rust ability. Non-magnetic, processing performance and excellent welding performance, the oxidation of acid has a strong corrosion resistance, the lye and most of the organic acids and inorganic acids also have a certain degree of corrosion resistance, is the most conventional water tank manufacturing the most widely selected The (If it is life drinking water tank, must use food grade 2B board).
1m*1m FRP/GRP Panel for SMC water tank
2.SUS201 is a low-nickel stainless steel, short life, poor corrosion resistance, easy to rust, especially acidic, it is easy to corrosion, use it to do the quality of the tank is not guaranteed, infinite trouble. Coupled with its high manganese content, as a drinking water tank is particularly harmful to health. But because of the cheap 201 prices are often some cheap, figure small profits of profiteers secretly use. We recommend no choice.
3.SUS316 has good welding performance, pitting resistance, especially high temperature strength, excellent resistance to intergranular corrosion; also has a good resistance to chloride erosion performance, in the sea and other various media, corrosion resistance Better than 304. So it is usually used in marine and chemical industry environment and other harsh conditions. But its market price is higher, only according to the actual needs of selective use.
4.SUS444 is a high corrosion resistance of ferritic stainless steel, high yield strength, a strong magnetic. Compared with other stainless steel, the biggest advantage is the resistance to chloride stress corrosion cracking ability, and its resistance to chloride ion point corrosion is better than SUS304, and SUS316L quite, more suitable for coastal areas of urban water supply tank. But its corrosion resistance is not strong (easy rust), less than 304 plate, but the price relative to the 304 plate cheaper, according to the actual needs of choice.
Drinking water storage tank
Above we compared the characteristics of the four stainless steel tank, then we and Suqian stainless steel tank manufacturers in cooperation when you must see, to prevent some manufacturers have no flicker.
Also add the main features of other stainless steel material:
301 stainless steel in the deformation shows a significant work hardening phenomenon, is used to require a higher strength of various occasions.
302 stainless steel is essentially a higher carbon content of 304 stainless steel variants, through cold rolling can get a higher strength.
302B is a high silicon content of stainless steel, it has a high resistance to high temperature oxidation.
303 and 303Se are free-cutting stainless steels containing sulfur and selenium, respectively, for applications where the main requirements are easy to cut and the table is high. 303Se stainless steel is also used in the production of hot forging parts, because under such conditions, this stainless steel has a good hot workability.
304L is a variant of 304 stainless steel with a low carbon content for applications where welding is required. The lower carbon content minimizes the amount of carbides that are precipitated in the heat affected zone near the weld, and the precipitation of carbides may cause intergranular corrosion (weld erosion) in certain environments.
304N is a nitrogen-containing stainless steel, nitrogen is added to improve the strength of steel.
100m3 panels combined SMC/GRP/FRP water storage tank food grade
305 and 384 stainless steel contain higher nickel, the processing of hardening rate is low, suitable for cold forming requirements of various occasions.
308 stainless steel for making electrodes.
309,310,314 and 330 stainless steel nickel, chromium content is relatively high, in order to improve the steel at high temperature oxidation resistance and creep strength. The 30S5 and 310S are 309 and 310 stainless steel variants, the difference is only low carbon content, in order to minimize the precipitation near the weld carbide. 330 stainless steel has a particularly high resistance to carburizing and thermal shock resistance.
316 and 317 stainless steel contain aluminum, which in the marine and chemical industry environment, the resistance to corrosion is much better than 304 stainless steel.
Hot dip galvanized steel water tank
Among them, 316 stainless steel by the variants, including low-carbon stainless steel 316L, nitrogen-containing high-strength stainless steel 316N and high sulfur content of cutting stainless steel 316F.
321, 347 and 348 are titanium, niobium plus tantalum, niobium stabilized stainless steel, suitable for high temperature use of welding components.
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