Jagoran Mai Samar da Bututun Karfe & Mai Kawo A China |

Menene "Pipeline Steel"?

Bututun karfe wani nau'in karfe ne da ake amfani da shi don kera tsarin sufuri na man fetur da iskar gas.A matsayin kayan aikin sufuri mai nisa don mai da iskar gas, tsarin bututun yana da fa'ida ta tattalin arziki, aminci da katsewa.

carbon-LSAW-na aikin031

Bututun karfe aikace-aikace

Bututun karfesamfurin siffofin hada da sumul karfe bututu da welded karfe bututu, wanda za a iya raba uku Categories: mai tsayi, high-sulfur yankunan da seabed kwanciya.Waɗannan bututu tare da matsananci aiki yanayi da dogon Lines kuma ba sauki don kula da, kuma suna da m ingancin bukatun. .

Kalubalan da karafan bututun mai ke fuskanta sun hada da: galibin filayen mai da iskar gas suna cikin yankunan polar, tudun kankara, sahara, da teku, kuma yanayin yanayi yana da tsauri;ko don inganta haɓakar sufuri, diamita na bututun yana karuwa akai-akai, kuma matsin lamba yana karuwa akai-akai.

Pipeline Karfe Properties

Daga cikakken kimantawa na ci gaban yanayin bututun mai da iskar gas, yanayin shimfida bututun mai, manyan hanyoyin gazawa da abubuwan gazawa, bututun karfe yakamata ya sami kyawawan kaddarorin inji ( bango mai kauri, babban ƙarfi, tauri mai ƙarfi, juriya), kuma yakamata ya kasance. babban diamita, Ya kamata kuma yana da manyan diamita, weldability, sanyi da ƙarancin zafin jiki, juriya na lalata (CO2), jure ruwan teku da HIC, aikin SSCC, da sauransu.

① Ƙarfi mai ƙarfi

Bututun ƙarfe ba wai kawai yana buƙatar ƙarfin ƙarfi mai ƙarfi da ƙarfin samar da ƙarfi ba, amma kuma yana buƙatar ƙimar yawan amfanin ƙasa ya kasance cikin kewayon 0.85 ~ 0.93.

② Babban tasiri tauri

babban tasiri tauri zai iya saduwa da bukatun hana fasa.

③ Low ductile-gaggautsa zafin jiki

Yankuna masu ƙarfi da yanayin yanayi suna buƙatar bututun ƙarfe don samun isassun ƙarancin ƙarancin ductile-gaggawa canjin yanayin zafin jiki. The yanki mai ƙarfi na DWTT (Drop Weight Tear Test) ya zama babban maƙasudin kulawa don hana gazawar bututun mai. yankin karyewar samfurin ya zama ≥85% a mafi ƙarancin zafin aiki.

④ Kyakkyawan juriya ga fashewar hydrogen-induced (HIC) da sulfide stress corrosion cracking (SSCC)

⑤ Kyakkyawan aikin walda

Kyakkyawan weldability na karfe yana da matukar muhimmanci don tabbatar da mutunci da ingancin walda na bututun.

carbon-karfe-api-5l-x65-psl1-bututu

Ka'idojin Bututun Karfe

A halin yanzu, manyan ma'auni na fasaha na jigilar mai da iskar gas da ake amfani da su a cikin ƙasata sun haɗa daAPI 5L, DNV-OS-F101, ISO 3183, da GB/T 9711, da dai sauransu. Yanayin gaba ɗaya shine kamar haka:

① API 5L ( ƙayyadaddun bututun layi) ƙayyadaddun ƙayyadaddun ƙayyadaddun bayanai ne wanda Cibiyar Maine ta Maine ta tsara.

② DNV-OS-F101 (tsarin bututun da ke karkashin ruwa) keɓancewa ne na musamman da Det Norske Veritas ya ƙera don bututun da ke ƙarƙashin ruwa.

③ TS ISO 3183 ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙa'idodin ƙasa ne na isar da bututun ƙarfe don watsa mai da iskar gas.Wannan ma'auni bai ƙunshi ƙirar bututun mai da shigarwa ba.

④ Sabuwar sigar GB/T 9711 ita ce sigar 2017. Wannan sigar ta dogara ne akan ISO 3183: 2012 da API Spec 5L 45th Edition. Dangane da duka biyun. da PSL2.PSL1 yana samar da daidaitaccen matakin inganci na bututun layi;PSL2 yana ƙara buƙatun wajibai waɗanda suka haɗa da abun cikin sinadarai, ƙaƙƙarfan ƙima, kaddarorin ƙarfi da ƙarin gwaji marasa lalacewa (NDT).

API SPEC 5L da ISO 3183 ƙayyadaddun bututun layi ne masu tasiri na duniya.Sabanin haka, yawancin kamfanonin mai a duniya sun saba yin amfani da suAPI SPEC 5L ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun bututun bututun bututun siyan bututun.

LSAW bututu dubawa
karfe bututu dubawa

Bayanin oda

Kwangilar kwangilar odar bututun ƙarfe ya kamata ya haɗa da bayanan masu zuwa:

① Yawan (jimlar taro ko jimlar bututun ƙarfe);

② Matsayin al'ada (PSL1 ko PSL2);

Bututun ƙarfenau'in (lalata kowelded bututu, takamaiman tsarin waldawa, nau'in ƙarshen bututu);

④ Bisa ga ma'auni, kamar GB/T 9711-2017;

⑤ karfe sa;

⑥ Diamita na waje da kauri na bango;

⑦ Nau'in tsayi da tsayi (ba a yanke ko yanke);

⑧ Ƙayyade buƙatar yin amfani da kari.

Karfe bututu maki da karfe maki (GB/T 9711-2017)

Karfe na al'ada karfe bututu daraja darajar karfe
PSL1 L175 A25
L175P A25P
L210 A
L245 B
L290 X42
L320 X46
L360 X52
L390 X56
L415 X60
L450 X65
L485 X70
PSL2 L245R BR
L290R X42R
L245N BN
L290N X42N
L320N X46N
L360N X52N
L390N X56N
L415N X60N
L245Q BQ
L290Q X42Q
L320Q X46Q
L360Q X52Q
L390Q X56Q
L415Q X60Q
L450Q X65Q
L485Q X70Q
L555Q X80Q
L625Q X90Q
L690Q X100M
L245M BM
L290M X42M
L320M X46M
L360M X52M
L390M X56M
L415M X60M
L450M X65M
L485M X70M
L555M X80M
L625M X90M
L690M X100M
L830M X120M

 

 


Lokacin aikawa: Janairu-30-2023

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