News
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Defects and treatment of cold drawn steel pipe
Defects and treatment of cold drawn steel pipe is as following: 1, folding: pulling system, cold drawn steel pipe inside and outside surfaces rendered straight or spiral direction of folding, the emergence of local or long pass on the pipe. The cause: the surface of the pipe material folded or fl...Read more -
Cold roll steel pipe process
With the development of industry, national defense and science and technology, especially the development of the aviation, automobile manufacturing, nuclear, rocket, missile, space technology, and machinery manufacturing industries, the requirement to provide a growing number of increasingly high...Read more -
Common Piping and Plumbing Fittings
Common Piping and Plumbing Fittings-Elbow An elbow is installed between two lengths of pipe (or tubing) to allow a change of direction, usually a 90° or 45° angle; 22.5° elbows are also available. The ends may be machined for butt welding, threaded (usually female) or socketed. When the ends diff...Read more -
Carbon steel pipe standard length
Delivery standard length of carbon steel pipe, also known as user requirements length or the length of the contract, there are four provisions in the existing standards: A, Normal length(also known as non-random length): any length within the length of the standard required and no fixed length re...Read more -
Carbon steel advantages and disadvantages in piping
Advantages of carbon steel pipe: smelting process is relatively simple, low cost, good pressure processing performance, good cutting performance and good mechanical properties. Such as by changing the carbon content and for its proper heat treatment, many of the performance obtained on the indust...Read more -
Galvanized Steel Pipe Rust and technical requirements
Galvanized Steel Pipe Rust Galvanized steel pipe rust is mainly for zinc soluble in acid and also be dissolved in alkali, so call it gender metal. Zinc in the dry air is almost no change. In humid air, the zinc surface will generate a dense film of basic zinc carbonate. Containing sulfur dioxide,...Read more