90 degree steel pipe elbow
The 45 °elbow is a pipe fitting with a pipe connection. Used in main and branch pipes. Used to change the direction of the pipe.
45 degree elbow
Wall thickness dimensions:
More than 2 mm, wall thickness can be made according to requirements.
45 degrees, can be manufactured according to requirements.
Carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastics, argon, ppc, etc.
Tray, wooden case, bag, bulk. Special packing can be made according to customer requirements.
Mode of transport:
·Stock, bicycle. It depends on the quantity of the goods.
·Ocean, Petroleum, Petrochemical, ship, Power, Heat, Natural Gas, Pharmaceutical, Milk, Beer, Beverage, Water Engineering.
Carbon steel elbow is divided into long radius elbow and short radius elbow according to its curvature radius. A long radius elbow refers to the outer diameter of a tube whose curvature radius is equal to 1.5 times.
A short radius bend means that its curvature radius is equal to the outer diameter of the pipe, that is, R 1. 0 D. (D is the diameter of the elbow and R is the radius of curvature). If there are about 17 types of pressure grades, there are about 17 types, which are the same as the American standard for pipes, including: Sch5s, Sch10s,Sch10, Sch20,Sch30,Sch40s,STD,Sch40,Sch60,Sch80s,XS; Sch80,Sch100, Sch120,Sch140,Sch160,XXS, is one of the most commonly used two kinds of STD and XS.
According to the angle of the elbow, there are 45 °, 90 °and 180 °.
Carbon steel material can be divided into 10# 20# A3 Q235A 20g Q345B 20G 16Mn ASTM A234 ASTM A105 ASTM A403, etc.
According to the process can be divided: welding elbows, stamping elbows, push bends, casting elbows and so on.
Purpose: connect two pipes to make the tube in right angle, 45 °，90°or 180 °direction.
The basic process of carbon steel elbow is: first, welding a polygonous ring shell with a cross section or a polygonal fan shell with closed ends, the internal pressure is applied after the pressure medium is filled inside. Under internal pressure, the cross section is gradually changed from polygon to circle, and finally becomes a circular ring shell. A circular ring shell may be cut into 4 90 °bends or 6 60 °bends or other elbows of other specifications, as required, and this process is suitable for the manufacture of any large elbow of a specification whose ratio of middle diameter to inside diameter of the elbow is greater than 1.5 times, It is an ideal method for manufacturing large carbon steel elbows at present.
The advantages of the process are as follows:
The main results are as follows:
(1) without using tube billet as raw material, pipe making equipment and die cost can be saved, and carbon steel elbows with arbitrary large diameter and relatively thin wall thickness can be obtained.
(2) the blank is flat plate or developable surface, so it is simple to cut, easy to ensure precision and easy to assemble and weld.
(3) because of the above two reasons, the manufacturing cycle can be shortened and the production cost can be greatly reduced. Because no special equipment is needed, it is especially suitable for processing large carbon steel elbows.
(4) carbon steel elbows are suitable for pipeline systems in petroleum, natural gas, chemical, hydropower, construction and boiler industries.
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