Welded Pipe

Aug 04,2022

Welded pipe is the abbreviation of welded steel pipe, is made of steel plate or strip steel after roll forming and welding steel pipe, generally 6 meters in fixed length.Welded steel pipe production process is simple, high production efficiency, many varieties and specifications, less investment in equipment, but the general strength is lower than seamless steel pipe.

Welded pipe standard

The first, low-pressure fluid transmission with welded steel pipe, referred to as GB/T3091-1993. this standard is mainly for the pipe range is water, air, gas, oil and other general is the tube of the lower pressure flow body.The material type of this pipe is Q235A grade steel.Secondly, the welded steel pipe for mining fluid transportation, referred to as GB/T14291-2006, this standard is mainly for the drainage system, mine pressure wind, etc. The material type of this pipe is Q235A steel.The material type of this pipe is Q235A.B grade steel.Third, stainless steel welded steel pipe for mechanical structure, referred to as GB/T12770-2002. this standard is mainly for machinery, automobiles, furniture, etc. The material model generally used for these positions is 0Cr13.1Cr17.00Cr19Ni11.1Cr18Ni9.0Cr18Ni11Nb, etc.

Welded pipe price

For general welded pipe whose role is to transport low-pressure fluids, soft steel that is generally easy to weld can also be manufactured.Material, we know that this kind of steel pipe is made of Q195A.Q215A.Q235A steel.In the experiment to go through the water pressure.Bending.Flattening and other related experiments, in addition to the surface quality requirements are high.The length is usually 4-10m, and the nominal diameter is also different, and there are thickening and non-thickening according to the customer's requirements.There are also two types of pipe ends: threaded and unthreaded.The price of welded pipes is between several tens and hundreds of dollars according to the different calibers and materials.Galvanized welded pipes are treated with a galvanizing process and have good corrosion resistance.Galvanized welded pipes are available in both hot and electric processes.The price of hot galvanized welded pipe in the market is at a minimum of about a few tens of dollars per piece, and electro galvanized is generally around a few dollars per piece.Oxygen blowing welded pipe specifications from 3/8 inch - 2 inch eight, used as steel blowing pipe, generally with small diameter welded steel pipe.Made of 08.10.15.20 or Q195-Q235 steel strip.To prevent corrosion, some of them are treated with aluminizing.The price of this type of welded pipe is over $100.

_welded pipe specification table

Specifications outside diameter national standard wall thickness welded pipe theoretical weight table 4 points 151/2 inch 21.252.751.266 points 203/4 inch 26.752.751.631 inch 251 inch 33.33.252.42