Ọkpụkpọ ígwè/Tube pilings/Accesories
01
Ọkụ na mkpuchi maka mgbochi corrossion
Okwu mmalite
Ụkpụrụ: Ọkọlọtọ dị ka American Society for Testing and Materials (ASTM), International Organisation for Standardization (ISO) na National Society of Corrosion Engineers (NACE) na-edo ụkpụrụ maka ọkpọkọ mkpuchi ihe mgbochi corrosion. Ụkpụrụ ndị a na-akọwapụta ihe achọrọ maka ihe mkpuchi, ụzọ ngwa, usoro ule na ụkpụrụ arụmọrụ.
Nhazi dabere na ọgwụgwọ elu: Enwere ike kewaa ọkpọkọ nwere mkpuchi mgbochi corrosion dabere n'ụdị mkpuchi eji. Ụdị a na-ahụkarị gụnyere:Fused Bonded Epoxy (FBE) mkpuchi Polyethylene (PE) ma ọ bụ polypropylene (PP) mkpuchi Asphalt ma ọ bụ mkpuchi asphalt Zinc ọgaranya agba Polyurethane mkpuchi Coal tar enamel mkpuchi.
Ngwa: A na-eji ọkpọkọ nwere mkpuchi mgbochi corrosion eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche, gụnyere: Mmanụ na Gas: Pipeline eji ebu mmanụ crude, gas na mmanụ mmanụ mmiri na mmiri mkpofu: maka mmiri ala na nsị mmiri Chemical na petrochemical: maka ibufe kemịkalụ na-emebi emebi na acids mmiri. na n'ikpere mmiri: maka pipeline nke okpuru mmiri na ihe ndị dị n'ụsọ oké osimiri Akụrụngwa: Maka iji na àkwà mmiri, ọdụ ụgbọ mmiri na ihe ndị ọzọ ekpughere na ọnọdụ gburugburu ebe obibi siri ike, ọkpọkọ ndị a dị oke mkpa iji nọgide na-eguzosi ike n'ezi ihe na ogologo ndụ nke akụrụngwa dị egwu na usoro mmepụta ihe, karịsịa na gburugburu ebe siri ike ma ọ bụ na-emebi emebi. Mgbe ị na-akọwa ma ọ bụ na-ahọrọ ọkpọkọ na mkpuchi mgbochi corrosion, ọ dị mkpa ka ị na-ezo aka na ụkpụrụ ndị dị mkpa na ndị ọkachamara ụlọ ọrụ na-ahụ maka iji hụ na mkpuchi a họọrọ na-emezu ihe ndị a kapịrị ọnụ nke ngwa a chọrọ.
Ọkwa igwe:
API 5L: GR B, X42,X46, X56, X60,X65,X70
ASTM A53: GR A, GR B, GR C
EN: S275, S275JR, S355JRH, S355J2H
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555
Nnwale: Nyocha ihe mejupụtara kemịkalụ, Njirimara arụrụ arụ (ike tensile ikpeazụ, ike mpụta, elongation), Njirimara nka nka (Nnwale ọkụ, Nnwale na-ehulata, Nnwale Nleba, Nnwale Mmetụta), Nnyocha Size Mpụga, Nnwale Hydrostatic, Nnwale X-ray.
Asambodo Nnwale igwe: EN 10204/3.1B
API 5L Line Pipe
API 5L PSL1/PSL2 GR B , X42, X46, X52, X60, X65, X70
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| Ọkwa ígwè | Mpụta ike, min. psi (MPa) | Ike nkwụsịtụ, min. psi (MPa) | Mgbatị n'ime 2 in., min. % |
| GR B | 245 | 415 |  |
| X42 | 290 | 415 | |
| X46 | 320 | 435 | |
| X52 | 360 | 460 | |
| X56 | 390 | 490 | |
| X60 | 415 | 520 | |
| X65 | 450 | 535 | |
| X70 | 485 | 570 |
| Ọkwa ígwè | % site na oke, kacha | ||||
| C | Na | Mn | P | S | |
| GR B | 0.26 | 0.40 | 1.20 | 0,030 | 0,030 |
| X42 | 0.26 | 0.40 | 1.30 | 0,030 | 0,030 |
| X46 | 0.26 | 0.40 | 1.40 | 0,030 | 0,030 |
| X52 | 0.26 | 0.40 | 1.40 | 0,030 | 0,030 |
| X56 | 0.26 | 0.40 | 1.40 | 0,030 | 0,030 |
| X60 | 0.26 | 0.40 | 1.40 | 0,030 | 0,030 |
| X65 | 0.26 | 0.40 | 1.45 | 0,030 | 0,030 |
| X70 | 0.26 | 0.40 | 1.65 | 0,030 | 0,030 |
PIPES Steel dị ka ASTM A53 GR. B
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| Ọkwa ígwè | Ihe mejupụtara, % | ||||||||
| C | Mn | P | S | Ya na | N'ime | Cr | Mo | N'ime | |
| GR B | 0.30 | 1.20 | 0.05 | 0.05 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
Ụlọ ọrụ na akụrụngwa mmepụta
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