Duplex Stainless Steel Flange Manufacturer

It is commonly stated that "stainless steel is non-magnetic". This is not strictly true and the real situation is rather more complicated. The degree of magnetic response ormagnetic permeabilityis derived from the microstructure of the steel. A totally non-magnetic material has a relative magnetic permeability of 1. Austenitic structures are totally non-magnetic and so a 100% austenitic stainless steel would have a permeability of 1. In practice this is not achieved. There is always a small amount of ferrite and/or martensite in the steel and so permeability values are always above 1. Typical values for standard austenitic stainless steels can be in the order of 1.05 - 1.1. SeeComposition effects on the magnetic permeability of austenitic stainless steels
It is possible for the magnetic permeability of austenitic steels to be changed during processing. For example,cold work and weldingare liable to increase the amount of martensite and ferrite respectively in the steel. A familiar example is in a stainless steel sink where the flat drainer has little magnetic response whereas the pressed bowl has a higher response due to the formation of martensite particularly in the corners.
In practical terms, austenitic stainless steels are used for "non-magnetic" applications, for example magnetic resonance imaging (MRI). In these cases, it is often necessary to agree a maximum magnetic permeability between customer and supplier. It can be as low as 1.004.


I hope this helps you

Marty

Turn off the water valves at the back of the sink and place a bucket underneath the drain to catch any water that may run out.
2 Loosen the nuts that hold together the drain tailpiece and the P-trap with a wrench. Disconnect the the two pieces.
3 Unscrew the drain tailpiece from the drain flange. Depending on how the drain flange is held in place, you may need to hold it down firmly as you twist the tailpiece below. Remove the tailpiece and set it aside.
4 Remove the old drain flange. It may come straight out after the tailpiece is removed, or it may be held in place with putty or silicone. If it is held in place tightly, grasp the edge with a pair of pliers and pull until it comes free.
5 Wipe down the sink area that was underneath the old flange. If the metal was discoloring or rusting, clean the porcelain well and dry it to keep the new flange clean.
6 Apply a thin bead of silicone caulk to the underside of the new flange. Push the new flange into the drain hole in the sink.
7 Push the drain tailpiece back up into the sink's drain from below and screw it into the flange tightly. Use a wrench to tighten it up securely.
8 Reconnect the P-trap to the tailpiece and tighten the nuts that hold it in place. Turn on the water supply to the sink and run water through the pipes to ensure everything is securely fastened.
Things You Will Need

• Bucket
• Pliers
• Adjustable wrench
• Silicone caulk

Duplex Steel flanges Duplex Stainless Steel Flanges Manufacturers Suppliers Instinox

You need to clean all the stainless steel contact points inside the unit, not just the blades. Make sure you unplug the unit before doing this.