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Sanitary fittings do not produce corrosion
Sanitary fittings do not produce corrosion, pitting, corrosion or wear. The corrosion resistance of sanitary pipe fittings with the carbon content of stainless steel decreased, therefore, most health-grade pipe fittings are low carbon content, its main alloying element is Cr, only when the Cr content reaches a certain value, health Grade pipe fittings have corrosion resistance.
The Role of Chromium in Sanitary Pipe Fittings
Chromium is the health-grade pipe to obtain the basic elements of corrosion resistance, when the health-grade pipe fittings containing chromium content of about 12%, chromium and corrosive media in the role of oxygen in the elbow surface to form a thin layer of oxidation Membrane, and prevent the further corrosion of the elbow. In addition to chromium, the commonly used alloying elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the various pipe environments on the stainless steel structure and performance requirements.
304 sanitary fittings and 316 health-grade pipe fittings
304 sanitary fittings is the most widely used health-grade pipe fittings, heat-resistant steel elbow. For food production equipment, general chemical equipment, nuclear energy. 304 stainless steel is a versatile stainless steel, rust-proof performance than the 200 series of stainless steel materials to be stronger. High temperature is also better, can be high to 1000-1200 degrees. 304 stainless steel with excellent corrosion resistance and good corrosion resistance to intergranular corrosion.
316 sanitary fittings are mainly used in the food industry, the pharmaceutical industry and surgical equipment, add molybdenum elements to obtain a special structure of corrosion resistance. Its corrosion resistance is better than the 304 sanitary pipe fittings, in the pulp and paper production process has good corrosion resistance performance. And 316 sanitary valves pipe fittings are also resistant to erosion of marine and erosive industrial atmosphere. In addition, 316 elbows have better resistance to chloride corrosion than 304 elbows.
Post je objavljen 16.11.2016. u 06:40 sati.