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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 EXW Outside Diameter 外径 (mm) USD/TON 406 457 508 609.6 711.1 762 812 863.6 Wall 8 1,088 1,080 1,088 1,072 1,072 1,072 1,072 1,072 Thickness 9.53 1,080 1,064 1,072 1,048 1,048 1,048 1,048 1,048 壁厚 (mm) 10 1,041 1,025 1...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 EXW Outside Diameter Wall Thickness EXW 外径 (mm) 壁厚 (mm) 出厂价 USD/TON 外径 (mm) 壁厚 (mm) 出厂价 USD/TON 33.4 (1″) 2.1-2.4 1,025.00 Φ133 3.0-5.75 998.44 2.5-3.25 1,003.13 6.0-7.75 1,009....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 EXW Outside Diameter Wall Thickness EXW 外径 (mm) 壁厚 (mm) USD/TON 外径 (mm) 壁厚 (mm) USD/TON 219、245 5.0-11.75 992.25 426 5.75-11.75 1025.50 273 5.0-11.75 992.25 12.5-13.75 1033.26 12.5-13.75 1000...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 EXW Outside Diameter Wall Thickness EXW 外径 (mm) 壁厚 (mm) USD/TON 外径 (mm) 壁厚 (mm) USD/TON 245, 273 5.0-9.28 903.46 450, 457, 508, 530 6.5-11.98 941.88 9.45-9.98 906.21 12.0-14.5 948.74...Read more -
Pipeline weld inspection process
Pressure pipe weld appearance basic requirements Before pressure pipeline do the nondestructive testing, visual inspection of weld inspection ruler should meet the requirements. General requirements for pressure pipe weld appearance and surface quality of welded joints are as follows: welding sho...Read more -
Pipe quenching and tempering
Pipe quenching is heated to above the critical temperature, holding time, and then quickly into the hardening agent to a temperature suddenly decreased to a rate greater than the critical cooling rate of rapid cooling, martensite is obtained based not equilibrium microstructure heat treatment met...Read more