First of all, 304 stainless steel has good processing performance,the main characteristics of stainless steel is high toughness, high density, no bubbles in polishing, acid and alkali resistance, etc. 304 stainless steel is widely used in industrial and home decoration industries and food and medical industries. The kitchen utensils, pots, pans and cups we use in our daily life are basically 304; and 316 stainless steel has better corrosion resistance, atmospheric corrosion resistance and high temperature strength. 316 stainless steel is used in seawater equipment and chemistry. , Dyes, papermaking, oxalic acid, fertilizers and other production equipment, photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts, if used in the food field, it would be a bit extravagant.
Secondly, the density of 304 stainless steel is 7.93g/cm³; the density of 316 stainless steel is 8.03g/cm³.
Someone bought a very good 304 stainless steel sink. After a few years, it began to rust. It is seriously suspected of a quality problem. In fact, this view is very one-sided. Generally speaking, stainless steel is steel that is not easy to rust. The principle is to add Ni element, Cr element, Mo element, etc., which is inseparable from processing performance of stainless steel. The main characteristics of stainless steel are rust resistance and acid and corrosion resistance. The reason for this characteristic is that a very thin, strong, dense and stable chromium-rich oxide film (passivation film) is formed on its surface. ). This kind of rust resistance and acid and corrosion resistance are also relative. Tests have shown that the corrosion resistance of steel in weak media such as the atmosphere and water and oxidizing media such as nitric acid increases with the increase of the chromium content in the steel. When the content reaches a certain percentage, the corrosion resistance of steel changes suddenly, that is, from easy to rust to not easy to rust, and from no corrosion resistance to corrosion resistance.
The main characteristics of stainless steel make many products change. In our daily life, it is easy to cause damage to the film on the surface of stainless steel, such as: during kitchen decoration, welding swarf, cement, oil stains, etc. remain on the surface of the faucet and sink. Failure to clean it in time may cause rust and mold; in order to avoid such a situation, it is recommended that the sink be installed last and rinse thoroughly after installation.
Sometimes, the newly renovated house with mineral or acid-alkaline dust falling on the faucet or the surface of the sink will cause "floating rust"; at this time, you can use toothpaste to clean it. Steel items such as kitchen knives, scissors, and corkscrews are placed on the surface of the sink for a long time, which will cause rust, mildew or discoloration; do not use steel wool to scrub the surface of the sink. You can use some fruit peels to scrub, which can leave a fragrance. It can also achieve the effect of cleaning. Chemical agents, cleaning agents, paint, sauces, oil stains, etc. remain in the tap and sink. Over time, they will cause mold to stick to the surface of the tap and sink; you can use overnight tea to clean it.
In many areas of our country, the water quality is poor, and there are too many galvanized pipes in the water pipes, and the content of iron and other elements in the water is too high. After the sink is used, if there are more water stains, the iron in the water will rust over time, especially for new house decoration If the long-term residual water in the water pipe leaves water stains on the sink and it is not cleaned in time, it is easy to cause floating rust. It is recommended that if you do not use the faucet for a long time, you can turn off the main water valve, after all, the processing performance of stainless steel will also be weakened.
Wuxi Hongwang Stainless Steel Co., Ltd provides all kinds of stainless steel, welcome to purchase.
Tag: processing performance of stainless steel, the main characteristics of stainless steel
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