Spesifikasi ini meliputi paip talian keluli berpakaian lancar dan dikimpal dan paip talian keluli berjajar dengan sifat tahan kakisan yang dipertingkatkan sesuai untuk digunakan dalam sistem pengangkutan saluran paip dalam industri petroleum dan gas asli. Paip talian keluli bersalut dan bergaris yang dinyatakan di sini adalah terdiri daripada penyandar keluli karbon atau bahan asas di luar (in some cases inside and/or outside) and a corrosion-resistant alloy (CRA) layer or lining inside of the pipe. The base material conforms to API 5L (45th Ed.), product specification level (PSL) 2 and applicable annex(es), except as modified herein. Grades of base material covered by this specification include X42, X46, X52, X56, X60, X65, X70, X80, and grades intermediate to these. Grades of the CRA layer are LC 1812, 2205, 2506, 2242, 2262, unified numbering system (UNS) S31703, UNS N08904, UNS N10276, ALOI 31 (UNS N08031), ALOI 59 (UNS N06059), ALOI 254 SMO-11 (UNS S31254), ALOI 400 (UNS N04400), AL6NX (UNS N08367), dan EN 1.4529 (UNS N08926). Other grades are subject to agreement between the purchaser and the manufacturer. The delivered product usually has square ends, but other special ends may be furnished by agreement between the purchaser and manufacturer. Included are nominal pipe sizes (BOROUGH) 25 mm (1 in.) melalui 2134 mm (84 in.). Sizes greater than 2134 mm (84 in.) are outside of the range of API 5L (45th Ed.) but may be supplied up to 2500 mm (100 in.) by agreement, termasuk keperluan untuk bahan.
Paip keluli bersalut CRA membujur atau heliks:
Gunakan plat komposit metalurgi gelek panas atau gegelung sebagai bahan, teknologi pembuatan paip termaju moden (Berkahwin, JCOE, COE dan SAWH) untuk membentuk, SAWL atau SAWH, dan TIG dll. gabungan proses kimpalan automatik untuk melengkapkan kimpalan. Kualiti kimpalan adalah stabil, dan ketepatan saiz produk adalah tinggi. Plat komposit atau gegelung dihasilkan oleh teknologi penggulungan panas, yang boleh mencapai ikatan metalurgi atom antara lapisan tahan kakisan dan lapisan sokongan, daya pengikat mencapai melebihi 200MPa, kadar kawasan mengikat boleh mencapai di atas 99.9%, dan prestasinya adalah stabil dan boleh dipercayai. Sarung boleh memenuhi keperluan prestasi khusus tahan kakisan, dan lapisan belakang boleh memenuhi kekuatan dan keadaan ketegaran struktur yang diperlukan.
Seamless or welded Lined steel pipe:
Seamless or welded carbon steel pipe as the outer backing layer, and corrosion-resistant alloy pipe as the inner corrosion layer, using the limit elasticity hydraulic composite method innovated independently by the company achieves the composite between the inner and outer pipe and forms the mechanical liner pipe. Through the composite technology, the optimal composite effect of mechanical liner can be achieved, and the shear stress between inside and outside metal layer can reach 2.0MPa (the relative standard requires 0.2-0.5MPa). Meanwhile, we develops specially the pipe ends automatic overlaying technology and NC machine tools specialized for beveling, which can process complex shape bevels such as U-bevel, and guarantees the conformity of pipe mouth diameter and bevel size, so as to operate pipe jointing on site.
BAHAN PRODUK paip bersalut CRA atau paip keluli berjajar
1.BAHAN SOKONGAN:
Q235B, Q345B, Q245R, Q345R, 16MnDR, L245~L485 (API 5L Gr.B, X42~X70), dan bahan sokongan lain boleh digunakan mengikut keperluan pengguna.
2.GRED CRA:
S30408 (TP304), S30403 (TP304L), S31608 (TP316), S31603 (TP316L), S32168 (TP321), S31803 (LC2205), S31260 (LC2506), N06625 (ASTM B443 625), N08825 (ASTM B424 825), dan bahan pelapis tahan kakisan lain boleh digunakan mengikut keperluan pengguna.
CRA LINED STEEL PIPE SIZE TABLE
O.D nominal. | Nominal W.T.(jumlah ketebalan), mm | Nominal W.T.(jumlah ketebalan), mm | Pipa Panjang, m | ||||||||||||||||||||||
BOROUGH | inci | mm | 4 | 5 | 6 | 7 | 8 | 9 | … | 17 | 19 | 22 | 25 | 31 | 33 | 35 | 40 | 45 | 50 | 54 | 60 | API 5LD | DNV OS-F101 | CJ/T192 | |
4 | 4.500 | 114.3 | 2.5 | 2.5 | 1.2 | 8.0-12.5 | |||||||||||||||||||
5 | 5.563 | 141.3 | |||||||||||||||||||||||
6 | 6.625 | 168.3 | |||||||||||||||||||||||
8 | 8.625 | 219.1 | |||||||||||||||||||||||
10 | 10.750 | 273 | |||||||||||||||||||||||
12 | 12.750 | 273 | |||||||||||||||||||||||
14 | 14 | 355.6 | 1.5 | ||||||||||||||||||||||
16 | 16 | 406.4 | |||||||||||||||||||||||
18 | 18 | 457 | 1.8 | ||||||||||||||||||||||
20 | 20 | 508 | |||||||||||||||||||||||
22 | 22 | 559 | 2.0 | ||||||||||||||||||||||
24 | 24 | 610 | |||||||||||||||||||||||
Nominal W.T., mm | 4 | 5 | 6 | 7 | 8 | 9 | … | 17 | 19 | 22 | 25 | 31 | 33 | 35 | 40 | 45 | 50 | 54 | 60 | Pelapisan min. Ketebalan, mm | |||||
Kenyataan:
1) Saiz khas boleh dipersetujui antara pengilang dan pembeli; 2) Min. ketebalan pelapisan boleh dipersetujui antara pengilang dan pembeli. |
Significant cost savings on capital expenditure for production flow lines were achieved by the use of corrosion-resistant alloy (CRA) DIBARISI PAIP, instead of solid CRA and metallurgically clad pipe options.
Presented here are the materials philosophy of the project team and the rationale for selecting bi-metal-DIBARISI PAIP along with a description of the manufacture, fabrikasi, and installation of the flow lines.
BERPAKAIAN PAIP
Use of CRA-clad steel line pipe is familiar to the offshore oil and gas industry. In a clad line pipe, the corrosion-resistant alloy forms a complete barrier layer on the internal surface of carbon or low-alloy steel pipe (usually referred to as the “backing steel”). Secara umum, use of clad or bi-metal-DIBARISI PAIP allows the economic use of expensive CRA materials.
Kakisan rintangan kepada persekitaran proses disediakan oleh dalaman lapisan CRA berpakaian, biasanya 2.5-3.0 mm tebal, manakala kurang mahal karbon sokongan keluli menyediakan talian paip dengan kekuatan yang diperlukan dan kekuatan untuk mengekalkan integriti mekanikal.
talian paip berpakaian boleh dibuat melalui pelbagai teknik yang termasuk kimpalan membentuk dan plat roll panas terikat, panas penyemperitan bersama, weld overlay, and manufacture of lined pipe. The details of the various methods of manufacture are well documented.1, 2 For Bruce Phase II development, manufacturing of the CRA-lined pipe was by a process involving hydraulic expansion of a CRA liner pipe inside a carbon-steel outer pipe. The finished product is supplied as bi-metal-lined pipe.
A more-detailed description of the manufacturing process occurs presently.
Manufacture of bi-metal-lined pipe is based upon use of traditional manufacturing routes for the primary materials, carbon-steel outer pipe, and CRA liner pipe.
API Specification 5LD. CRA Clad or Lined Steel Pipe. FOURTH EDITION | Mac 2015 | 38 PAGES | $145.00 | PRODUCT NO. G5LD04. This specification …