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Stainless steel welded pipe/tube：

Introduction：

Stainless steel welded pipes are commonly used steel pipes or steel belts that are welded after being rolled by the unit and the mold. Welded steel pipe production process is simple, high production efficiency, many varieties and specifications, less equipment investment, but the general strength is lower than seamless steel pipe.

Since the 1930s, with the rapid development of high-quality strip continuous rolling production and the advancement of welding and inspection technology, the quality of welds has been continuously improved, the variety and specifications of welded steel pipes are increasing, and in more and more fields, especially in Heat exchange equipment replaced seamless steel tubes with tubes, decorative tubes, medium and low pressure fluid tubes, etc.

Features：

First, the small-diameter stainless steel welded pipe is produced continuously online. The thicker the wall thickness, the greater the investment of the unit and welding equipment, and the less economical and practical it is. The thinner the wall thickness, the lower the input-output ratio. Second, the process of the product determines its advantages and disadvantages. Generally, the welded steel pipe has high precision, uniform wall thickness, and high brightness inside and outside the pipe (steel pipe determined by the surface grade of the steel plate)Surface brightness), can be arbitrarily sized. Therefore, it embodies its economy and aesthetics in high-precision, low- and medium-pressure fluid applications.

Welding characteristics：

According to welding technology, it can be divided into automatic welding and manual welding. Automatic welding generally adopts submerged arc welding, plasma welding, and manual welding generally adopts argon arc welding.

Classification：

According to the weld form, it is divided into straight seam welded pipe and spiral welded pipe.

It is divided into general welded pipe, heat exchanger pipe, condenser pipe, galvanized welded pipe, oxygen-blown welded pipe, wire casing, metric welded pipe, idler pipe, deep well pump pipe, automobile pipe, transformer pipe, electric welding thin wall Pipe, welded special-shaped pipe and spiral welded pipe

use:

GB/T12770-2002 (stainless steel welded steel pipe for mechanical structure). Mainly used in machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical parts and structural parts. Its representative materials are 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb and so on.

GB/T12771-2008 (stainless steel welded steel pipe for fluid transportation). Mainly used to transport low-pressure corrosive media. Representative materials are 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni110Ti, 00Cr17, 0Cr18Ni11Nb, 06Cr17Ni12Mo2, etc.