Difference Between Standard Specifications of SSAW Pipe and Precision Steel Pipe
Dec 27, 2023
SSAW Pipe Supplier-GNEE
Spiral steel pipe is mainly used in water supply project, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction and so on. Spiral steel pipe belongs to one of the 20 key products developed in China. Used for liquid transportation: water supply, drainage. For gas transportation: gas, steam, liquefied petroleum gas. For structural use: piling pipes, bridges; Spiral steel pipe is a spiral seam steel pipe welded by automatic double-wire double-sided submerged arc welding process using strip steel coil as raw material. Spiral steel pipe feeds the strip steel into the welded pipe device. The strip is rolled by multiple rolls and gradually coiled into a round pipe billet with an open gap. Adjust the pressing down amount of the extrusion roller to control the weld gap between 1-3mm and make the weld ends flush.
The difference between spiral steel pipe and precision steel pipe
Spiral steel pipe can be divided into two categories according to the production method: spiral steel pipe and seamed spiral steel pipe. Seamed steel pipe is referred to as straight seam steel pipe. Spiral steel pipe can be divided into hot-rolled seamless pipe, cold-drawn pipe, precision steel pipe, hot-expanded pipe, cold-rotated pipe, extruded pipe, etc. according to the production method. Spiral steel pipe is made of high quality carbon steel or alloy steel, which can be divided into hot rolled and cold rolled (drawn). The main feature of spiral steel pipe is that it has no welded seams and can withstand higher pressure.
As cast or cold-drawn parts, the product may be very rough. Welded steel pipe is divided into furnace welded pipe, electric (resistance) welded pipe and automatic arc welded pipe due to different welding processes. Due to different welding methods, it is divided into straight seam welded pipe and spiral welded pipe. According to the shape of the end is also divided into round welded pipe and shaped welded pipe and shaped (square, flat, etc.) welded pipe.
Welded steel pipe is rolled into a tube with steel plate and welded by butt joint or spiral seam. From the manufacturing method is divided into low-pressure fluid transportation with welded steel pipe, spiral seam electric welded steel pipe, direct coil welded steel pipe, electric welded pipe and so on. Spiral steel pipe can be used for liquid pneumatic piping and gas piping in various industries. Welded can be used for water pipe, gas pipe, heating pipe, electric power pipe and so on.
Precision steel tubes are products that appeared in recent years. They mainly have strict tolerance and roughness on inner hole and outer wall dimensions. Precision steel tubes are high-precision steel tube materials processed by cold drawing or hot rolling. As there is no oxidized layer on the inner and outer walls of precision steel tubes, they are characterized by no leakage under high pressure, high precision, high brightness, no deformation in cold bending, no cracks in flaring and flattening, etc. They are mainly used for the production of products with pneumatic or hydraulic components, such as cylinders or oil cylinders.
