We Super Steel Manufacturing Co.,Ltd(SMC) are amongst the top manufacturers and suppliers for the seamless steel pipe, welded steel pipe, OCTG products and fittings from China. We have been manufacturing and supplying these products to the industry since 1993, and received repeat orders and appreciation from our valued customers.
High quality piping products from approved manufacturers.
In order to continuously improve our offerings to our clients, we have consistently improved and upgraded our manufacturing facility and can hence offer material with stringent requirements.
Over the years, Super Steel Manufacturing Co.,Ltd(SMC) has developed an enviable reputation for project management for the Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical and other heavy industries.
The many years of experience that we have means that there is always someone who has the ability to carry a project forward.
Always up to date. In this column you can find the steel pipe related articles, including industry trends, product standards and materials, and some technical guidelines.
When it comes to cutting thick-walled spiral steel pipes, selecting the right method is crucial to ensure precision and maintain the integrity of the material. Here are some of the commonly used methods and their characteristics of thick-walled spiral steel pipes.
Mechanical Cutting
This method includes both external and internal installation options and works on the principle of turning tool processing to cut and bevel the pipe mouth. A single machine offers a large operational span, can handle substantial thicknesses, generates minimal waste, and is free of pollutants. Additionally, mechanical cutting does not produce high temperatures during processing, which helps preserve the material properties of the pipe, making it ideal for welding. Water cutting, which uses a high-pressure pump and abrasive materials like emery, also falls under mechanical methods. It produces clean cuts and covers a wide processing range, although its efficiency is lower and it has limitations in cutting very thick materials.
Oxyacetylene Flame Cutting
In this method, adjusting the oxygen and acetylene valves changes the mix ratio of gases, allowing for three flame types: neutral, oxidizing, and carbonizing flames. This flexibility provides different effects for cutting various materials, making it versatile for thick-walled pipes.
Ion (Plasma) Cutting
Plasma cutting, which operates with different working gases, is ideal for metals that are challenging to cut with oxygen-based methods, particularly non-ferrous metals like stainless steel, aluminum, copper, titanium, and nickel. Plasma cutting is especially advantageous for smaller metal thicknesses, offering high speed, particularly with thin carbon steel sheets, where it can be five to six times faster than oxygen cutting. This method provides a smooth cut surface, minimal thermal deformation, and a smaller heat-affected zone, preserving the pipe's structural properties.
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