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1.Turn off the water or gas system so that nothing is running through the pipe where you will be installing the union. 2.Mark the steel pipe at the point where the union needs to be installed using a felt-tip pen. 3.Measure the length of the union, when all three parts are installed together. Subtract from this figure the amount that the steel pipe's threads will enter both ends of the union. For example, if the union's length is 3 inches and the pipe will enter each end of the union by 3/4 inch, you would calculate 1 1/2 inches. Make a second mark along the pipe at a distance from the first mark that equals this calculated measurement. 4.Place a rotary pipe cutter around the pipe, tightening the cutter blade onto one of the marks. Lubricate the pipe and the cutter blade with cutting oil. Rotate the cutter once 360 degrees, and tighten it again. Rotate again. Repeat this process until the pipe is cut through. Follow the same steps to cut through the pipe at the second mark. 5.Remove the pipes on each side of the cuts by placing a pipe wrench around the pipes at a point close to the nearest couplings. Turn the pipe wrench counterclockwise to remove the pipes. 6.Take both pipes to a major DIY store to have the cut pipe ends threaded. 7.Apply threading compound around the older threads on both pipes. Thread both pipes by hand into the couplings that they were removed from. Tighten the pipes into place with the wrench. 8.Apply threading compound to both newly threaded pipe ends. Remove the female end of the union from the male end -- the female end will have the central nut. Thread the female end of the union onto one of the pipe threads. Tighten it in place with the wrench. Thread the male end of the union onto the remaining pipe end. Tighten it with the wrench. Thread the central nut onto the male end of the union by hand. Tighten the two together with one wrench on the central nut and another on the male end.

If you have stainless steel surfaces in your home, finding the right substances to clean them is important to keep your home looking great. So, what cleans stainless steel? Depending on how messy these surfaces are, different cleaning methods are likely to be effective. There are several things that effectively clean these surfaces. Stainless Steel Cleaner What you need for stained or scratched stainless steel is a stainless steal cleaner. There are many products available which are specially formulated to treat stainless steel. These products are more effective at cleaning and polishing steel than most other cleaning methods. Simple Green and Homax are two top brands of stainless steel cleaners. Glass Cleaner Glass cleaner is somewhat effective at cleaning stainless steel. If your surfaces are covered in simple smudges and fingerprints, then glass cleaner returns them to clarity. Glass cleaners are also great for simple daily cleaning. Dishwashing Liquid For routine cleaning of stainless steel, soapy water goes a long way. Using a cloth and dishwashing liquid on a regular basis prevents stainless steel surfaces from acquiring a dull appearance. It is important to towel dry the surface after cleaning to prevent water spots from forming. Microfiber Cloth A damp microfiber cloth does wonders for cleaning you steel surfaces. Unlike other items, microfiber cloths do not scratch the surface of stainless steel. For best results, wipe the surface in the direction of polish lines. Towel dry afterwards to prevent water spots and damage caused by the minerals that are naturally present in water. From specially designed cleaning products to simple cloths and household cleaners, you can find something to clean your stainless steel surfaces no matter how messy they are. Knowing what cleans stainless steel most effectively is the key to maintaining an attractive sparkling shine on these types of surfaces.

In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is a steel alloy with a minimum of 10.5%[1] chromium content by mass. Stainless steel does not readily corrode, rust or stain with water as ordinary steel does. However, it is not fully stain-proof in low-oxygen, high-salinity, or poor air-circulation environments.[2] There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and corrosion resistance are required. Stainless steel differs from carbon steel by the amount of chromium present. Unprotected carbon steel rusts readily when exposed to air and moisture. This iron oxide film (the rust) is active and accelerates corrosion by forming more iron oxide; and, because of the greater volume of the iron oxide, this tends to flake and fall away. Stainless steels contain sufficient chromium to form a passive film of chromium oxide, which prevents further surface corrosion by blocking oxygen diffusion to the steel surface and blocks corrosion from spreading into the metal's internal structure.Due to the similar size of the steel and oxide ions, they bond very strongly and remain attached to the surface. Applications The arch rises from the bottom left of the picture and is shown against a featureless clear sky The 630-foot-high (190 m), stainless-clad (type 304) Gateway Arch defines St. Louis's skyline The pinnacle of New York's Chrysler Building is clad with Nirosta stainless steel, a form of Type 302. A stylized figure of a male human with outstretched arms and head tilted slightly forward, wearing a winged and crested helmet, mounted on the facade of a building An art deco sculpture on the Niagara-Mohawk Power building in Syracuse, New York Stainless steel is used for jewelry and watches with 316L being the type commonly used for such applications. It can be re-finished by any jeweler and will not oxidize or turn black. Some firearms incorporate stainless steel components as an alternative to blued or parkerized steel. Some handgun models, such as the Smith & Wesson Model 60 and the Colt M1911 pistol, can be made entirely from stainless steel. This gives a high-luster finish similar in appearance to nickel plating. Unlike plating, the finish is not subject to flaking, peeling, wear-off from rubbing (as when repeatedly removed from a holster), or rust when scratched. Some automotive manufacturers use stainless steel as decorative highlights in their vehicles. Article From https://en.wikipedia.org/wiki/Stainless_steel#Applications