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Welding technology and production method of large-diameter straight seam steel pipe
1. Control of the weld gap The strip steel is sent to the welded steel pipe unit, after rolling by multiple rollers, the strip steel is gradually rolled up to form a round tube blank with an open gap, and the reduction of the squeeze roller is adjusted to control the weld gap to 1~3mm, And make t...Read more -
Length description of large diameter steel pipe
1. Normal length (also called non-fixed-length length): Any length that is within the length specified by the standard and no fixed length is required is called normal length. For example, the structural pipe standard stipulates hot-rolled (extruded, expanded) steel pipe 3000mm~12000mm; cold draw...Read more -
China eyeing restart of ferrous scrap imports in H1 2021, says trade
China is likely to allow the resumption of ferrous scrap imports from early 2021, or at least no later than June, market sources close to the issue said Oct. 27. Chinese authorities banned such imports in July 2019 due to environmental concerns, but have been pushing for a resumption with stricte...Read more -
API 5L/ASTM A53 GR.B, CARBON STEEL, SSAW STEEL PIPE
API 5L/ASTM A53 GR.B, CARBON STEEL, SSAW STEEL PIPE FOB TIANJIN USD/TON Outside Diameter 外径 (mm) 219 273 324 356 406 457 508 610 711 762 813 914 Wall Thickness 6 569 569 569 569 569 569 569 569 569 569 569 569 壁厚 (mm) 7 569 569 569 569 569 569 569 569 569 569 569 569 8 569 ...Read more -
API 5L/ASTM A106 GR.B, Seamless Carbon Steel Pipe
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API 5L GR.B/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL PIPE
API 5L GR.B/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL PIPE FOB TIANJIN Outside Diameter 外径 (mm) USD/TON 406 457 508 609.6 711.1 762 812 863.6 Wall 8 720 714 720 707 707 707 707 707 Thickness 9.53 714 701 707 687 687 687 687 687 壁厚 (mm) 10 681 667 674 687 687 687 687 687 12...Read more -
API 5L/ASTM A53 GR.B (Small Diameter ERW Steel Pipe)
API 5L/ASTM A53 GR.B (Small Diameter ERW Steel Pipe) Outside Diameter Wall Thickness FOB TIANJIN Outside Diameter Wall Thickness FOB TIANJIN 外径 (mm) 壁厚 (mm) 离港价 USD/TON 外径 (mm) 壁厚 (mm) 离港价 USD/TON 33.4 (1″) 2.1-2.4 598.37 Φ133 3.0-5.75 575.82 2.5-3.25 579.80 6.0...Read more -
API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe)
API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe) Outside Diameter Wall Thickness FOB TIANJIN Outside Diameter Wall Thickness FOB TIANJIN 外径 (mm) 壁厚 (mm) 离港价 USD/TON 外径 (mm) 壁厚 (mm) 离港价 USD/TON 219、245 5.0-11.75 580.51 426 5.75-11.75 600.41 273 5.0-11.75 580.51 12.5-13...Read more -
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE)
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE) Outside Diameter Wall Thickness FOB TIANJIN Outside Diameter Wall Thickness FOB TIANJIN 外径 (mm) 壁厚 (mm) 离港价 USD/TON 外径 (mm) 壁厚 (mm) 离港价 USD/TON 245, 273 5.0-9.28 615.27 450, 457, 508, 530 6.5-11.98 648.44 9.4...Read more -
Protection method for back side of weld seam of argon arc welding of stainless steel pipeline
Protection method for back side of weld seam of argon arc welding of stainless steel pipeline 1. The tube is filled with argon for protection For argon arc welding of stainless steel pipes in petrochemical plant engineering, the method of filling the pipe with argon is generally used to prevent o...Read more -
Laying knowledge of thin-walled stainless steel pipes
When laying thin-walled stainless steel pipes, they should be installed after the civil works are finished. Before installation, first, check whether the position of the reserved hole is correct. When laying thin-walled stainless steel pipes, the distance between fixed supports should not be grea...Read more -
China’s daily crude steel output hits record high 3.09 mil mtday in September
China’s crude steel output hit an all-time high on a daily rate basis in September at 3.085 million mt/day, which annualizes to 1,126 million mt, S&P Global Platts calculated based on National Bureau of Statistics data released Oct. 19. Based on Platts’ estimated crude steel capacity in China...Read more