The price of stainless steel flanges varies between different models
Stainless steel with neck welding flange and with the neck of welding flange cost difference, because the application is different, with the weight of the neck welding flange is relatively light, the price is cheap, with neck of welding flange process is relatively complex, the weight is heavy, so the price is higher than with neck welding flange, and it is the lathe processing, processing cost is not the same. Stainless steel flange in order to prevent the eye corrosion because of the flange cover heating, the welding current should not be too large, about 20% less than the carbon steel welding rod, the arc should not be too long, between the layer is fast cold, with narrow welding path is appropriate. When stainless steel flange fittings welding, by repeated heating to separate carbide, reduce corrosion resistance and mechanical properties. For stainless steel flanges, an appropriate amount of stable elements Ti, Nb, Mo, etc. were added to improve corrosion resistance and weldability. Weldability is better than chrome stainless steel flange. When using the same type of chromium stainless steel flange strip, it shall preheat it to above 200℃ and return it to around 800℃ after welding. If the weld is not heat treated, stainless steel flanged pipe strips shall be used. Stainless steel flange pipe fittings and counterweld flange electrodes have good corrosion resistance and oxidation resistance, widely used in chemical, fertilizer, petroleum and medical machinery manufacturing Use of stainless steel flange: 1. It is easier to replace the broken pipe section to be replaced or to remove during steering.2. The interface is often very fragile, and using flanges can maintain high sealing and durability.3. Stainless steel flange has another important role, that is, in a certain section of the pipe does not need to continue to connect, need to be blocked place, using the flange can be used to easily close the pipe, when needed to use again can also easily open the stainless steel flange, to connect the pipe to continue to use.
