1. Thick-walled steel pipes should be submitted for inspection in batches, and the batching rules should comply with the regulations of the corresponding product standards. 2. The inspection items, sampling...
In order to solve the problem of excessive misalignment in the alignment of spiral steel pipe nozzles, the following preventive measures should be taken in quality management control: 1. Try to...
Welded steel pipes are made by flattening steel coils and then welding them through a welding machine. There are several types of welding, such as straight seam welding and spiral welding. The diameter...
A) Choose the appropriate site and warehouse for carbon steel tubes 1. The site or warehouse where the steel is stored should be located in a clean and well-drained place, away from factories and mines...
Carbon steel pipes are prone to thermal expansion and thermal deformation at high temperatures, which can lead to leaks at pipe connections or damage to the pipe itself. Here are a few ways to avoid this: ...
Burs are ubiquitous in the metalworking process. No matter how advanced and sophisticated equipment you use, it will be born with the product. This is mainly due to the plastic deformation of the material...
Tensile strength of seamless pipe (SMLS): Tensile strength refers to the maximum tensile stress that a material can withstand when it is stretched by an external force, and it is usually usec to measure...
The installation of carbon steel pipes should generally meet the following conditions: 1. The pipeline -related civil engineering experience is qualified and meets the installation requirements; 2. Use...
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...
Commonly used non-destructive testing methods for carbon steel tubes are: ultrasonice testing (UT), magnetic particle testing (MT), liquid penetrant testing (PT) and X-ray testing (RT). The applicability...
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....
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...