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Anti-corrosion of the inner wall of large diameter steel pipe
1. Before processing all steel pipes, the steel plate on the inner wall of the large-diameter steel pipe should be de-rusted, and it is required to reach the metal luster (whitening). 2. The steel after rust removal should be processed immediately (to prevent secondary rust). After processing, us...Read more -
What is the difference between fine polishing and rough polishing of stainless steel pipe fittings
What is the difference between fine polishing and rough polishing of stainless steel pipe fittings Rough polishing is the rough grinding and cutting of metal objects. Usually, this kind of automatic polishing machine uses double polishing heads for polishing. The advantages of this rough polishin...Read more -
South Korean court moves closer to sale of Japanese steel-maker assets
A South Korean court on Tuesday became able to order the sale of assets belonging to a Japanese steel-maker over a 2018 top court wartime forced labor compensation order that has roiled ties between the two countries. Monday was the last day before the Daegu District Court’s Pohang branch could l...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 6 592 592 592 592 602 602 602 602 602 602 602 602 壁厚 (mm) 7 592 592 592 592 602 602 602 602 602 602 602 602 8 592 ...Read more -
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 8 721 708 714 704 704 704 704 704 Thickness 9.53 688 674 681 694 704 704 704 704 壁厚 (mm) 10 688 674 681 694 704 704 704 704 12...Read more -
API 5L/ASTM A106 GR.B, Seamless Carbon Steel Pipe
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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″) 2.1-2.4 587.13 Φ133 3.0-5.75 565.23 2.5-3.25 569.10 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 5.0-11.75 576.83 462 5.75-11.75 609.03 273 5.0-11.75 576.83 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 5.0-9.28 605.06 450, 457, 508, 530 6.5-11.98 626.04 9.4...Read more -
The generation of steel strip delamination defect and its influence on steel pipe quality
Delamination is caused by shrinkage defects in the steel ingot. After the steel ingot with a shrinkage cavity is rolled into a steel strip, a layer is formed in the middle of the section. The internal delamination of the wide coil can be exposed to the edge of the strip after slitting, but it is ...Read more -
Production characteristics of stainless steel seamless pipe
The production characteristics of stainless steel welded pipes The continuous roll forming into stainless steel welded pipes below φ219mm is similar to the high-frequency straight seam welded pipes above φ219mm using pressure forming (UOE) or spiral welding (see spiral welded pipes). The capillar...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 6 545 545 545 545 545 545 545 545 545 545 545 545 壁厚 (mm) 7 545 545 545 545 545 545 545 545 545 545 545 545 8 545 ...Read more