Rusty steel products are shiny, beautiful and generous, environmental health, easy to clean, no rust, everyone likes to use. For stainless steel products not only can be used at home, the use of industrial manufacturing industry is also very much, so industrial stainless steel and diet with kitchen utensils are the same stainless steel? Can industrial stainless steel 304 be taken? Is it toxic?
Here first, you need to figure out what industrial stainless steel 304 is. 304 stainless steel is a common material in stainless steel, with a relative density of 7.93 g/cm3, also known as 18/8 stainless steel in the industry. 304 stainless steel is a more common chrome-nickel stainless steel, as a main common use of steel, with excellent corrosion resistance, temperature resistance, ultra-low temperature compressive strength and mechanical equipment characteristics; Stamping die, bending and other heat treatment is good, no hardening of the heat treatment process (application temperature -196℃ ~ 800℃).
The more critical elements in 304 are Ni and Cr, but not only these two elements. The actual provisions are determined by commodity standards. The manufacturing industry generally judges the situation that if the Ni content is more than 8% and the Cr content is more than 18%, it can be felt that it is 304 stainless steel.
The food and pharmaceutical manufacturing industries use nickel-containing stainless steel for a wide variety of utensils, pipes and parts. There are often three numbers of "13-0", "18-0" and "18-8" on stainless steel kitchenware, the number in front of the number indicates the chromium content, and the data behind it means the nickel content. Chromium is one of the essential nutrient elements in plants. However, a lot of chromium will pollute the environment and harm health. All chromium chemicals are toxic. The toxicity of hexavalent chromium is large, trivalent followed by bivalent toxicity is small, and the toxicity of hexavalent chromium is basically 100 times greater than that of trivalent chromium. Much ingestion of chromium can have significant accumulations in the body. Chromium hexavalent is the key to chromium poisoning. Because the invasion method is different, the clinical symptoms are different.
Industrial stainless steel and food with kitchen utensils is not the same stainless steel, although the food industry also belongs to industrial production and processing, but after all, some stainless steel is suitable for some are not suitable, so we must look at the product number when choosing stainless steel products, to ensure that the goods they buy are able to take goods.
