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Petroleum casing threaded connection type insulation joint installation requirements
1. Within 50 meters of the installation location of the insulation joint, avoid dead holes to be welded. 2. After the insulated joint is connected to the pipeline, it is not allowed to lift the pipeline within 5 meters of the joint. The pressure must be tested together with the pipeline. 3. A...Read more -
Heat treatment technology of oil casing
After the oil casing adopts this heat treatment method, it can effectively improve the impact toughness, tensile strength, and anti-destructive performance of the oil casing, ensuring good value in use. Petroleum casing is a necessary pipe material for drilling oil and natural gas, and it needs t...Read more -
Horizontal fixed welding method of stainless steel pipe
1. Welding analysis: 1. Cr18Ni9Ti stainless steel Ф159mm×12mm large pipe horizontal fixed butt joints are mainly used in nuclear power equipment and certain chemical equipment that require heat and acid resistance. The welding is difficult and requires high welding joints. The surface is required...Read more -
SSAW Steel Pipe Price Jun 01st Jun 07th 2021
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 6 955 955 955 955 955 955 955 955 955 955 955 955 壁厚 (mm) 7 955 955 955 955 955 955 955 955 955 ...Read more -
Seamless Steel Pipe Price Jun 01st Jun 07th 2021
API 5L/ASTM A106 GR.B, Seamless Carbon Steel Pipe 公称通径 DN 外径OD(mm) SCH40(6m/5.8m) SCH80(6m/5.8m) SCH160(6m/5.8m) 壁厚WT FOB 壁厚WT FOB 壁厚WT FOB (mm) USD/TON (mm) USD/TON (mm) USD/TON 1/4” 13.7 2.24 1,663.54 3.02 1,663.54 / / 3/8” 17.1 2.31 1,506.06 3.2 1,50...Read more -
LSAW Steel Pipe Price Jun 01st Jun 07th 2021
API 5L/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 1,051 1,043 1,051 1,035 1,035 1,035 1,035 1,035 Thickness 9.53 1,043 1,027 1,035 1,012 1,012 1,012 1,012 1,012 壁...Read more