stainless steel elbow
What is a stainless steel elbow?
In simple terms, stainless steel elbow is a type of pipe fitting connected between two pipes. The main purpose is to change the course of direction. As we know, steel elbow can be classified into different degrees, normally is 45 degree steel pipe elbow, 90 degree steel pipe elbow and 180 degree steel pipe elbow.
In addition according to the engineering needs also include 60° and other abnormal Angle elbow. Elbow materials are cast iron, stainless steel, alloy steel, calcined cast iron, carbon steel, nonferrous metals and plastics.
Stainless steel elbow is different from carbon steel elbow is mainly different material. The chemical composition of stainless steel will keep the surface of the elbow for a long time will not rust and corroded.
Characteristic of stainless steel:
Strength, toughness index is the best of all kinds of steel, its most prominent advantage is corrosion resistance, in chemical paper and other corrosive occasions must use stainless steel, of course, the cost is higher!
1.Long service life
The service life of stainless steel pipe is long. The service life of stainless steel water pipe can reach 100 years, at least 70 years, as long as the life of the building.
2. Corrosion resistance
One of the outstanding advantages of stainless steel pipe is its excellent corrosion resistance, because stainless steel can passivate with oxidant, thus forming a tough and dense chromium rich oxide protective film Dr2O3 on the surface, which can effectively prevent further oxidation reaction.
3. Heat resistance and heat preservation
The thermal conductivity of the stainless steel pipe is 1/25 of the copper pipe, is the 1/4 of the ordinary steel pipe, especially suitable for hot water transport, the stainless steel commonly used in the water industry is 304 and 316 stainless steel, they can meet most water treatment conditions.
4. Strength
The strength of the material determines whether the elbow is strong and firm. In the case of external impact, the resistance of stainless steel elbow is better.
Why is stainless steel so strong?
It is the addition of chromium that gives the steel its unique stainless, corrosion-resisting properties. The chromium content of the steel allows the formation of a tough, adherent, invisible, corrosion-resisting chromium oxide film on the steel surface.
What is the use of stainless steel elbow?
Connect two pipes of the same nominal diameter to make a 90 degree turn.
Stainless steel is usually increased on the basis of carbon steel with a high proportion of Cr, Ni and other alloys, the proportion of content can reach more than 20%. Standards and grades commonly in ASTM A403 WP 304/304L, 316/316L, ASTM A270 etc. It has higher strength and higher corrosion-resistances than carbon steel elbow.
Stainless steel elbow can also be divided into equal diameter elbow and non-equal diameter elbow. Equal diameter elbow used to connect the same size of the outside diameter pipe. Non-equal diameter elbow used to connect different outside diameter pipe.
90° stainless steel elbow is mainly used for connecting pipe fittings in pipeline installation. It connects two tubes of the same or different nominal diameters in a 90° elbow.
