-
2024-06-13Product News
Seamless boiler pipe welding standards
Seamless boiler pipes are essential components used in high-pressure and high-temperature environments, such as in boilers and power plants. The welding standards for seamless boiler pipes ensure the integrity, safety, and performance of these pipes under such demanding conditions. Below are some key standards and considerations.
-
2024-06-13Product News
Standard length of welded steel pipe
Welded steel pipes, known for their high strength, corrosion resistance, and smooth surface, are made by welding various materials to meet diverse usage needs. These pipes are extensively used in construction, manufacturing, machining, and other industries. Common lengths for welded pipes are 6 meters and 12 meters, which cater to most usage requirements. During transportation and storage, welded pipes often need to be cut; thus, selecting different lengths based on specific needs is practical.
-
2024-06-12Product News
Production principle of hot-rolled seamless steel pipe
The production of hot-rolled seamless steel pipes involves rolling solid ingots into hollow tubes without seams. This process is applicable to carbon steel, alloy tubes, high alloy steel, and some non-ferrous metals. The resulting seamless steel pipes have an outer diameter range of 16 to 1600 mm and a wall thickness of 2 to 200 mm.
-
2024-06-12Product News
Rust removal methods of LSAW steel pipe
In the anti-corrosion construction process for pipelines, the surface treatment of LSAW (Longitudinal Submerged Arc Welding) steel pipes is crucial for determining the longevity of the pipes. This surface treatment ensures a solid bond between the pipe and its anti-corrosion layer. Studies have shown that, aside from the type of coating, the quality of coating, and environmental factors during construction, the surface treatment of LSAW steel pipes accounts for approximately 50% of the coating’s lifespan. Therefore, adhering to stringent surface treatment standards is essential. The main methods for rust removal in LSAW steel pipes are as follows.
-
2024-06-11Product News
Industrial steel pipe finishing defects and their prevention
The finishing process of steel pipes is critical for removing defects, improving quality, meeting special product requirements, and defining the "identity" of the products. Key finishing processes include straightening, cutting ends (chamfering, sizing), inspection and testing (surface quality, geometric dimensions, non-destructive testing, hydraulic tests), grinding, length measurement, weighing, painting, printing, and packaging. Steel pipes for special purposes may also undergo surface shot peening, mechanical processing, and anti-corrosion treatments.
-
2024-06-11Product News
Seamless pipe pressure calculation
A seamless pipe (SMLS pipe) is a metal pipe manufactured from a single piece of steel billet. The production process involves heating, perforation, rolling, and cooling. Unlike welded pipes, seamless pipes have smooth inner walls, uniform thickness, and can withstand high pressure and high temperatures. The manufacturing process ensures the high quality and reliability of seamless pipes.
-
2024-06-07Product News
Cutting of large diameter seamless steel pipe
With the advancement of industrialization, large-diameter seamless steel pipes are increasingly used across various fields such as petroleum, natural gas, chemical industry, and construction. In steel pipe processing, cutting is a crucial step. This article will introduce the cutting methods for large-diameter seamless steel pipes.
-
2024-06-07Product News
Defects of cold drawn seamless steel pipes
Here's an overview of the defects of cold drawn seamless steel pipes.
-
2024-06-06Product News
What are the effects of coating on large diameter spiral steel pipe?
This article will briefly introduce the effects of coating on large diameter spiral steel pipe.
-
2024-06-06Product News
Hot cracks prevention of SSAW steel pipes
SSAW steel pipe is a spiral seam steel pipe made from strip steel coils, extruded at regular temperature, and welded using an automatic double-wire double-sided submerged arc welding process.
-
2024-06-05Product News
Why does stainless steel pipe rust?
When brown rust spots appear on the surface of stainless steel pipes, many people are surprised. They often think, "Stainless steel shouldn't rust. If it does, it must not be stainless steel, or there must be a quality issue." This is a misunderstanding. Stainless steel can rust under certain conditions. This article explores the reasons behind this phenomenon.
-
2024-06-05Product News
Surface processing grades of stainless steel pipes
Here's an overview of the surface processing grades of stainless steel pipes.
