Advantages of Seamless Steel Pipe

The time of issue:2014-5-6 10:27:10       Author:

Is a seamless hollow sections, no seams around the long bar of steel. Compared to other steel and solid steel bar, the same torsion strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts. Ring with steel pipe manufacturing parts, can improve material utilization, simplify the manufacturing process, saving material and machining time. Steel or a variety of conventional weapons indispensable material, gun barrels to make steel. Steel shapes in different cross-sectional area can be divided into tube and shaped tubes. As in the perimeter of equal conditions, the largest area of a circle with a circular tube can carry more fluid. Advantages of seamless steel pipe are high pressure, good toughness, pipe length and fewer interfaces. The disadvantage is the high price, corrosive, thus short life.

(1) Ordinary seamless steel pipe
Common with ordinary carbon steel seamless pipe, high-quality carbon steel, low alloy steel or alloy steel rolled together. Specification, a high-intensity, is the most common kind of process piping tubes, widely used in pipeline operating pressure 1.6MPa or less. Such as heat pipe, cooling water pipe and air pipe, tube, oxygen, acetylene pipelines, as well as various types of chemical pipeline corrosion medium.

(2) Stainless steel seamless pipe
Stainless steel tube with chrome-nickel stainless steel seamless pipe, there are two types of hot-rolled and cold rolled tubes (drawing). Characterized by strong acid resistance, corrosion resistance, but the price is expensive, mainly for the special requirements of chemical pipelines.

(3) Low pressure fluid welded steel pipe
Low pressure liquid delivery pipe joints welded steel pipe is generally used Q215-A, Q235-A, Q255-An ordinary carbon steel. By surface quality of galvanized (galvanized iron pipes) and stainless steel (black iron pipe) two; according threaded pipe end or not, they can be divided into threaded and non- threaded two kinds; press wall thickness of, ordinary Canadian thick two kinds. 2.0MPa ordinary steel can withstand hydrostatic testing in general, thicker tube can withstand 3.0MPa pressure test. Ordinary steel and thicker pipe generally used for lower working temperature gauge medium pipe. For example : nominal diameter less than 100mm can be used for working pressure does not exceed 1.0MPa, medium temperature does not exceed 200 ℃ indoor heating pipes and steam pipes and hot water pipes ; nominal diameter of not more than 65mm, for working pressure of not more than 0.8MPa compressed air piping ; nominal diameter of not more than 50mm can be used for gas or gas and water pipes, etc.

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