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Main quality testing items and methods of seamless pipes
The main quality testing items and methods of seamless pipes: 1. Check the size and shape of the steel pipe (1) Steel pipe wall thickness inspection: micrometer, ultrasonic thickness gauge, no less than 8 points at both ends and record. (2) Steel pipe outer diameter and ovality inspection: callip...Read more -
What are the steel pipe products around you?
Steel pipe products are indispensable and important products in today’s society, and they are widely used in various industries. 1. Qualification of steel pipe products The qualification of steel pipe products refers to whether the quality of steel pipe products meets the standards stipulat...Read more -
Carbon steel tube flaw detection method
Commonly used non-destructive testing methods for carbon steel tubes are: ultrasonic testing (UT), magnetic particle testing (MT), liquid penetrant testing (PT) and X-ray testing (RT). The applicability and limitations of ultrasonic testing are: It mainly uses the strong penetrability and good di...Read more -
How to choose spiral pipe or seamless pipe?
When it comes to steel pipe selection, there are usually two options: spiral pipe and seamless pipe. While both have their own advantages, spiral steel pipe is usually more economical in terms of price. The production process of spiral steel pipe is relatively simple, mainly including forming, we...Read more -
Classification and application of welded steel pipe
Welded steel pipe is a steel pipe in which the edges of steel plates or strip coils are welded into a cylindrical shape. According to the welding method and shape, welded steel pipes can be divided into the following categories: Longitudinal welded steel pipe (LSAW/ERW): Longitudinal welded steel...Read more -
Carbon steel tube vs Stainless steel tube: material difference and application field analysis
In daily life, carbon steel tube (cs tube) and stainless steel tube(ss tube) are one of the most commonly used piping products. Although they are both used to transport gases and liquids, their materials vary widely. This article will conduct a detailed analysis of the material differences and ap...Read more -
Surface processing defects of seamless tubes and their prevention
Surface processing of seamless tubes (smls) mainly includes: steel tube surface shot peening, overall surface grinding and mechanical processing. Its purpose is to further improve the surface quality or dimensional accuracy of steel tubes. Shot peening on the surface of seamless tube: Shot peenin...Read more -
Spiral pipe yield and loss rate
Spiral pipe (SSAW) factory attaches great importance to the loss of spiral pipe. From the steel plate to the finished product rate of the spiral pipe, the loss rate of the spiral pipe manufacturer during welding directly affects the cost price of the spiral pipe. The formula for calculating the y...Read more -
Common surface defects of seamless tubes
Common outer surface defects of seamless tubes (smls): 1. Folding defect Irregular distribution: If mold slag remains locally on the surface of the continuous casting slab, deep folding defects will appear on the outer surface of the rolled tube, and they will be distributed longitudinally, and &...Read more -
Key points of production process of spiral welded pipe
Spiral welded pipe (SSAW pipe) is a kind of spiral seam steel pipe made of strip steel coil as raw material, which is welded by automatic double-wire double-sided submerged arc welding process and extruded at room temperature. Water supply engineering, petrochemical industry, chemical industry, e...Read more -
Application field of large diameter spiral welded pipe
Large diameter spiral welded pipe (ssaw) is a kind of pipe with a wide range of uses and can be used in different fields and industries. Next, let’s take a closer look at the use of large-diameter spiral steel pipes. First of all, large diameter spiral welded pipes can be used as water pipe...Read more -
Application and maintenance of hot-dip galvanized seamless steel pipe
Hot-dip galvanized seamless steel pipe has good corrosion resistance and strength, and is widely used in industrial and civil fields. The following are its common application scenarios: 1. Construction field: used as building structural materials, such as large steel structures, high-rise buildin...Read more