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Introduction to the Process of Making Carbon Steel Elbow

Mar. 26, 2020

An elbow is a type used at the turn of a pipe. Of all the pipe fittings used in the piping system, the proportion is also the largest, which can be about 80%. In general, different forming processes are selected for elbows of different materials or wall thicknesses. The common elbow forming process in the seamless elbow factory includes hot pushing, stamping, and extrusion.

The hot push forming process is a process of using a special elbow pusher, core mould and heating installation to make the blank set on the mould move forward under the push of the pusher, and it is heated, expanded and bent during the movement. The deformation characteristics of the hot push elbow are based on the rule that the volume is constant before and after the deformation of the metal to determine the diameter of the tube blank. The diameter of the pipe blank used is smaller than the diameter of the elbow. After the core mould controls the deformation process of the blank, the compacted metal at the inner arc is moved to compensate other parts that are thinned due to the diameter expansion, so as to obtain an elbow with average wall thickness.

The hot push elbow forming process has the characteristics of beautiful appearance, average wall thickness and suitable for mass consumption. Hot push forming has, therefore, become the main forming method for carbon steel and alloy steel elbows, and it is also used in the forming of certain specifications of stainless steel elbows.

The heating methods in the forming process include medium frequency or high-frequency induction heating (the heating ring can be multi-turn or single-turn), flame heating and reverberatory furnace heating. Which heating method is used depends on the requirements of the formed product and the energy situation.

The use of each type of elbow is different. The elbow is a joint fitting commonly used in pipe installations. It connects two pipes with the same nominal diameter or different pipes to make the road turn at a certain angle.

Carbon Steel Degree Elbow

Carbon Steel Degree Elbow

According to the consumption process, it can be divided into the welded elbow, stamped elbow, push elbow, and cast elbow. Divided into manufacturing standards can be divided into electrical standards, water standards, American standards, German standards, Japanese standards, Russian standards and so on. Our elbows have German standard elbows, Japanese standard elbows, and American standard elbows. Commonly used materials for elbows are cast iron, stainless steel, alloy steel, calcinable cast iron, carbon steel, non-ferrous metals and plastics.

The methods of jointing with the pipe include direct welding (common methods), flange connection, thermal fusion connection, electric fusion connection, screw connection and socket connection. The higher the carbon content, the greater the hardness and the higher the strength, but the lower the plasticity. The first is that the mechanical properties depend on the carbon content of the steel, and usually do not increase a lot of alloying elements of the steel, sometimes called ordinary carbon steel or carbon steel. Carbon steel, also called carbon steel, refers to an iron-carbon alloy with a carbon content of less than 2%.

The use and installation of carbon steel degree elbow: carbon steel elbow is used for connection of pipe bends. Connect two pipes with the same nominal diameter to make the pipe make a turning point. Carbon steel elbows can be said to cover the use of all walks of life in the country, from small families to companies. Each carbon steel elbow has its own benefits and uses.