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News
Make good use of seamless steel pipes
Views: 313 Aug 26 , 2016
In pipeline transporting, the most used material should be seamless steel pipes. Because it has good stability and long service life. In general, the material of seamless steel pipes is superior than other common transporting pipes. Make good use of seamless steel pipes in
in pipeline transportation, it can simplify the entire...
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Can heat treatment change seamless steel pipes' performance?
Views: 292 Aug 23 , 2016
Heat treatment refers to a process that can change the internal
organization of seamless steel pipes by heating, insulation and cooling
methods in the solid state range to obtain a desired performance. Heat treatment step is an important aspect of production, which can improve organizational performance metallic materials to...
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Tips for treating seamless steel pipes surface
Views: 410 Aug 18 , 2016
In order to improve the seamless steel pipes for oil transportation, usually the surface should be treated for corrosion resistance. Common treatments include: cleaning, descaling, pickling, shot blasting four methods.
1. Cleaning. The grease, dust, lubricants, organic matter on the surface of seamless steel...
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Update Ranking Status of www.segsteel.com on Aug.12th
Views: 676 Aug 12 , 2016
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How to straighten large diameter seamless steel pipes
Views: 1094 Aug 08 , 2016
In some high-intensity work environment, large-diameter seamless steel pipe may deform. So how to straighten large diameter seamless steel pipes? The best way is to use steel pipe straightening machine. Steel pipe straightening machine is used for metal profiles, bars, tubes, wire, etc. Here we will introduce operations and attentions...
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Hot and cold rolling process of seamless steel pipe
Views: 466 Aug 02 , 2016
Generally, there are two processes of seamless steel pipe: hot rolling process and cold rolling process.
Hot rolled seamless steel pipes will be coated with oil after a rigorous quality control by staff, then followed by several cold experiments and perforation experiments. If the perforation is too large, it needs...
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How to choose good quality seamless steel pipes?
Views: 379 Jul 25 , 2016
Here today, we will share some tips for choosing good quality seamless steel pipes.
1. As for good quality seamless steel pipes, its cross section should be smooth and even. If you see there is burr or uneven cross section, do not pick up these defective seamless steel pipes.
2. You need to...
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Seamless Steel Pipe For High Pressure Boiler
Views: 458 Jul 19 , 2016
In recent years, with the rapid development of power industry, it greatly boosted the development and production of high pressure boiler pipes. The annual production is more than 600,000 tons, accounting for 6.61% of seamless steel pipes. Currently, most standard can meet domestic needs, but large diameter and thick wall seamless steel...
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Chemical composition of thick wall seamless steel pipes
Views: 240 Jul 12 , 2016
Thick wall seamless steel pipes are generally made from 10#, 20#, 30#, 35#, 45# and other high quality carbon steel 16Mn, 15MnV low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other structural steel by hot rolling or cold rolling. Thick wall seamless steel pipes made from 10#, 20# are mainly used for fluid...
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Update Ranking Status of www.segsteel.com on July.6th
Views: 260 Jul 06 , 2016
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