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Application advantages and different uses of cold drawn steel tube products
Apr 08, 2018

Cold-drawn steel tubes are mainly used in various mechanical structures and hydraulic equipment. In contrast, the use of cold-drawn steel pipes made of these mechanical structures or hydraulic equipment, in the actual processing can save a lot of processing time, and can greatly improve the utilization of the material.


More importantly, the use of cold-drawn steel tubes can also significantly improve the quality of these products. In the process of processing, if you want to get a smaller size and better quality seamless tube, you must use cold rolling, cold drawing or a combination of both. Cold rolling is usually carried out on a two-high mill, and the steel tube is rolled in a ring-shaped pass composed of a variable-section circular hole groove and a stationary conical head. Cold drawing is usually performed on a single-chain or double-chain cold-drawing machine of 0.5 to 100T.


Among the cold-drawn steel pipe products, some of them are cold-rolled seamless pipes of high-quality carbon structural steel. This series of steel pipes are mainly made of No. 10, No. 20, No. 35, and No. 45 steel, except for guaranteeing chemical composition and Mechanical performance should be done outside the hydraulic test, curling, flaring, flattening and other tests.


With the actual application of the situation to analyze, the use of cold-drawn steel pipe has been quite extensive. Generally, the seamless pipe is rolled by common carbon structural steel, low alloy structural steel or alloy structural steel, and has the largest output, and is mainly used as a pipe or structural part for conveying fluid. Special-purpose seamless pipes include seamless pipes for boilers, seamless pipes for geological use, and seamless pipes for petroleum.


According to the different uses of cold-drawn steel tubes, it can be divided into different supply methods. The first is based on chemical composition and mechanical properties; the second is based on mechanical properties; the third is on hydrostatic testing. Among them, the cold-drawn steel tubes supplied according to the first two types can be used to withstand the liquid pressure, and hydrostatic tests are also required.

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