Product Information
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The difference between cast steel flange and forged steel flange
The cast steel flange has an accurate blank shape and size, a small processing amount, and low cost, but has casting defects (pores, cracks, inclusions); the internal structure of the casting is poorly streamlined (if it is a cutting part, the streamlined form is even worse); ...Read more -
Connection problems between steel pipe fittings
Steel pipe fittings are parts that connect tubes to pipelines. According to the connection method, it can be divided into four categories: socket fittings, threaded fittings, flanged fittings, and welded fittings. Mostly made of the same material as the pipe. There are elbows ...Read more -
Introduction of anti-corrosion on the inner wall of large-diameter steel pipes
1. Before processing all steel pipes, the steel plate on the inner wall side of the large-diameter steel pipe shall be de-rusted until the metal is exposed to metallic luster (whitening). It should meet the sa2.5 standard required in GB8923-88 of “Steel Surface Corrosion...Read more -
The purpose of preheating the pipe before welding the spiral steel pipes
Critical components of alloy steel and thick parts must be preheated before welding. The purpose of preheating before welding spiral steel pipes is as follows: (1) Preheating can slow down the cooling rate after welding, make hydrogen diffuse in the weld metal and escape, and ...Read more -
Submerged arc steel pipes high-frequency welding process
1. The control of the weld gap: the strip steel is sent to the welded pipe unit after rolling by multiple rollers. The strip steel is gradually rolled up to form a circular tube blank with an opening gap. Adjust the reduction of the extrusion roller to control the gap between ...Read more -
The continuous rolling process of straight seam steel pipe
The continuous rolling process of straight seam steel pipe: the continuous rolling process of straight seam steel pipe, continuous rolling process is used in the continuous rolling and fixed diameter reduction process of steel pipe. Continuous steel pipe rolling is a process i...Read more -
Several common anti-corrosion processes for spiral steel pipes anticorrosion
Anti-corrosion spiral steel pipe plays an important and different role in people’s daily life. Anti-corrosion spiral steel pipe generally refers to the use of special technology to treat ordinary spiral steel pipe with anti-corrosion treatment, so that the spiral steel p...Read more -
What are the detection methods of oil casing
Oil casing is a high-end product produced by steel pipes. There are many types of casings, and there are many varieties and requirements for casing end buckle types. The machinable buckle types include STC, LC, BC, VAM, and other buckle types. The production and installation p...Read more -
Some Tips for Preventing Steel Pipeline Corrosion
Corrosion of pipes occurs because metals are sometimes susceptible to chemical reactions that weaken them. Once the metal is weakened, it is prone to rust and can form cracks and holes, which is a big problem. Corrosion protection for pipes is therefore critical, not least bec...Read more