Labarai - ASTM A106 vs API 5L: Wane Ma'aunin Bututun Karfe Don Aikinku?

Ga manajojin ayyuka na duniya, daraktocin sayayya, da kuma shugabannin injiniya, zaɓar takamaiman buƙatun bututun da ya dace shawara ce ta karya doka wadda ke shafar aminci, kasafin kuɗi, da tsawon lokacin aikin. Lokacin da ake amfani da mai, iskar gas, ko ruwa mai ƙarfi, lambobi biyu galibi suna bayyana: ASTM A106 da API 5L.

Duk da cewa duka biyun sun dace da bututun ƙarfe na carbon kuma suna da halaye iri ɗaya na sinadarai da na inji, rikitar da su na iya haifar da tsadar rashin bin ƙa'ida ko gazawar bututun da wuri.

Ga bayanin fasaha don ku san wanne ya dace da nau'in aikin ku.

Faɗi da Amfanin Musamman

Babban bambanci tsakanin waɗannan ƙa'idodi guda biyu shine cewa an rubuta su ne don yanayin aiki daban-daban:

ASTM A106 Karfe bututu: An yi shi ne don yin aiki ba tare da matsala ba don yawan zafin jiki da matsin lamba mai yawa. Ana amfani da shi galibi a cikin bututun matatar mai, tashar wutar lantarki, masana'antar mai da aikace-aikacen tukunyar ruwa inda ruwan ke da zafi mai yawa.

API 5L Karfe Bututu: Ma'auni ne da Cibiyar Man Fetur ta Amurka ta ƙirƙiro don amfani da bututu a cikin tsarin jigilar bututun layi a masana'antar mai da iskar gas. An tsara shi don ɗaukar iskar gas, ruwa, da mai na tsawon lokaci mai tsawo a ƙasa da kuma a bakin teku.

Hanyoyin Kera: Marasa Sumul idan aka kwatanta da Welded

Sassauci a masana'antu kuma muhimmin bambanci ne ga tsarin siye:

Samar da bututun ƙarfe mara sulke (maki A, B, da C) shine kawai zaɓin da ake da shi ga ASTM A106.

API 5L ya haɗa da tsarin bututun da ba su da matsala da kuma na walda don buƙatun bututun mai girman diamita. Bambance-bambancen da aka haɗa su ne bututun API 5L ERW (Welded Electric Resistance Welded), bututun ƙarfe LSAW (Welded Longitudinal Submerged Arc Welded), bututun ƙarfe SSAW (Welded Spiral Submerged Arc Welded).

Maki na Kayan Aiki da Haɗin Sinadarai

Fahimtar tsarin tantancewa yana da mahimmanci ga lissafin tsari da ƙimar matsin lamba:

Daidaitacce	Maki na gama gari	Ƙarfin Tauri (Ƙananan)	Ƙarfin Yawa (Ma'ana)
ASTM A106	Darasi na A, ASTM A106 Darasi na B, Darasi na C	415 MPa (Mataki na B)	240 MPa (Mataki na B)
API 5L	API 5L Grade B, API 5L X42, API 5L X52, API 5L X60, API 5L X65, API 5L X70	415 MPa (Mataki na B) zuwa 570 MPa (X70)	245 MPa (Mataki na B) zuwa 485 MPa (X70)

Bambance-bambance a fannin aikin ƙarfe:

Duk da cewa ASTM A106 Grade B da API 5L Grade B suna da irin waɗannan sinadarai da iyakokin injina, API 5L yana gabatar da ƙarfe mai ƙarfi mai ƙarfi na thermo-inji (maki "X", kamar bututun layi na API 5L X65). Waɗannan maki masu girma suna ba da damar ganuwar sirara a cikin bututun mai nisa, wanda ke rage yawan tan na ƙarfe da farashin kaya ga manyan ayyukan ababen more rayuwa.

Matakan Bayanin Samfura: PSL1 da PSL2

Babban kuskuren da masu siye na ƙasashen duniya ke yi shine yin watsi da matakan ƙayyadaddun samfurin API 5L (PSL1 da PSL2):

PSL1yana samar da daidaitaccen matakin inganci daidai da ASTM A106.

PSL2yana sanya ƙa'idodi masu tsauri da suka zama dole kan bututun ƙarfe na carbon. Yana buƙatar gwajin tasiri (gwajin Charpy V-notch) don tantance ƙarfin karyewar, yana iyakance daidai da carbon don tabbatar da ingantaccen ƙarfin walda, kuma yana buƙatar gwaji mai tsauri wanda ba ya lalatawa (NDE). ASTM A106 ba shi da daidai kai tsaye da buƙatun PSL2.

Jagorar Takaitawa ga Masu Gudanar da Ayyuka

Zaɓi ASTM A106 (Sch 40 / Sch 80):Idan aikinku ya ƙunshi bututun matatar mai mai rikitarwa, bututun tururi, ko tsarin sassan aiki waɗanda ke aiki a ƙarƙashin matsin lamba mai zafi.

Zaɓi API 5L (X42 zuwa X70):Idan kuna gina bututun mai na ƙasashen waje, bututun tattara mai na ƙasashen waje da jigilar mai, ko kuma kuna buƙatar babban diamita.Bututun ƙarfe mai walda na API 5Liya jure wa matsanancin yawan amfanin ƙasa da muhallin iskar gas mai guba.

Zaɓar tsakanin ASTM A106 da API 5L ba wai kawai batun takamaiman bayanai ba ne; yana da alaƙa da rage haɗari, amincewa da ƙa'idoji, da inganta farashi.

A matsayinta na babbar mai samar da kayayyaki a duniya, Royal Steel Group tana bayar da cikakken takardar shaida, wanda aka gwada a masana'anta.bututun ƙarfe na carbon mai santsi ASTM A106, mai daraja mai girmaBututun layi na API 5L X60, kuma mai kauri bangoLSAW bututun ƙarfebin ƙa'idodin ayyuka na duniya, gami da ƙa'idodin EN, ASME, da ISO.

Shin kuna shirin aikin faɗaɗa bututun mai ko aikin matatar mai na gaba? Tuntuɓi ƙungiyar injiniyan fasaha tamu a yau don cikakken ƙiyasin farashi, don duba Rahoton Gwajin Kayan Aiki (MTR), ko don tattauna juriyar masana'antu na musamman da aka tsara don girman aikinku.

[Tuntuɓi ƙwararrun masana siyan kayan fasaha yanzu]⬇