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What are the specifications of API 5L X70 Seamless Pipe?
Specifications for all seamless and welded pipes are covered by the American Petroleum Institute. Both pipes are made through a different manufacturing process. The tube shell of API 5L X70 seamless pipe is made from preheated billet which is rolled between offset rolls. These rolls are the tube shell of a pipe. It then goes to rolling mill where the elongation process of these pipes is done to provide the desired thickness and diameter. A mandrel is used during elongation process. A sizing collar is used to achieve the desired diameter. In case, the diameter of a tube has to be changed then the tube is reheated. It is then passed to a stretch reducing mill.
In the multi-stand mill only outside diameter is reduced till the desired diameter is not achieved. The wall thickness of API 5L X70 seamless pipe remains unchanged during the process. These pipes are available in different forms and sizes.
Pipe specifications are as follows:
» Pipe ends- belled, plain, threaded
» Form- round pipe, rectangular pipe, square pipes and more
» Length- double or single random, required length
» End protection- plastic caps
» Outside coating- anti-corrosion oil, black painting
» Surface Finish- galvanized finish, mil varnish, concrete taping, bare, oiled, tape wrap
» End finish- threaded and coupled, square cut, beveled
All suppliers offer these specifications to their customers which can also vary according to their requirements. When it comes to packing, the API 5L X70 seamless pipe is loosely packed in bundles which are sealed with iron strips. Special packing of these pipes is done in wooden or metal cases, pallets, etc.