Qaybinta suuqa, waxaan inta badan la kulmaa tuubooyinka heerarka kala duwan sida "tubooyinka saddex-standard" iyo "tubooyinka shan-standard".
Si kastaba ha ahaatee, saaxiibo badan ayaan aqoon ku filan oo ku saabsan xaaladda dhabta ah ee tuubooyinka heerarka badan, oo ma fahmaan iyaga. Waxaan rajeynayaa in maqaalkani uu ku siin karo xoogaa dhiirigelin ah si aadan mar dambe shaki uga gelin wax soo iibsiga iyo isticmaalka dambe.
01—Horumarinta tubbooyinka heerarkoodu kala duwan yahay sida "Tubbooyinka saddex-standard" iyo "tubooyinka shanta ah" iyo sababaha iyo macnaha jiritaankooda.
Waagii hore waxa u ololayn jiray ama u baahnaan jiray tubbooyinka heerkoodu kala duwan yahay, si ay qolada mashruuca ahi u iibsadaan, ugana faa’iidaystaan qaab midaysan, wakhtiga iyo dhibkana ka badbaadiya.
Bilawgii, tuubooyin kala duwan ayaa inta badan u jiray si barbar socda halbeegyada Maraykanka iyo halbeegyada Maraykanka, jihada ugu weyn ee loo isticmaalona waxa ay ahayd dhoofinta, oo inta badan ka kooban "tuubooyinka saddex-standard" iyo "tuubooyinka shanta ah". Later, sababtoo ah nashqadaha badan ee mashaariicda petrochemical ee gudaha ayaa la fuliyay si waafaqsan halbeegyada Maraykanka, tuubooyin kala duwan ayaa si tartiib tartiib ah loogu soo bandhigay soo iibsiga iyo isticmaalka mashaariicda kiimikada iyo kiimikada gudaha.
Marka uu wakhtigu sii socdo oo suuqu u horumaro qaab la sifeeyay, kala soocida tuubooyinka heerka-badan ee suuqa ayaa hadda ah kuwo xirfad leh oo kala duwan.
Waqtigan xaadirka ah, marka lagu daro "tuubooyinka saddex-standard" iyo "tubooyinka shan-standard", waxa kale oo jira "tuubooyinka laba-standard" iyo "tuubooyinka afar-standard" ee suuqa. Intaa waxaa dheer, kuma koobna wada noolaanshaha halbeegyada Mareykanka iyo halbeegyada Mareykanka, laakiin sidoo kale inta u dhexeysa halbeegyada qaranka iyo heerarka qaranka, iyo inta u dhexeysa halbeegyada qaranka iyo heerarka Mareykanka.
Tuubooyinka heerarka kala duwan ee suuqa ku jira hadda kuma jiraan isticmaalayaasha mashruuca, laakiin waxa bilaabay alaab-qeybiyeyaasha (warshadaha, ganacsatada suuqa).
Sababta ay u jiraan tuubooyin heer-sare ah:
Marka hore, asal ahaan, waa la gaari karaa. Tuubooyinka caadiga ah ee loo yaqaan 'multi-standard tubes', sida magacu soo jeediyo: isla tuubooyin bir ah oo isku mid ah ayaa la kulma in ka badan laba heerar fulineed iyo qalab. Waxay la kulmi kartaa labadaba halkan iyo halkaas, iyo walxaha kiimikada, sifooyinka farsamada, iyo nidaamka shuruudaha tignoolajiyada ee dhowr heerar ayaa la buuxin karaa isku mar.
Marxaladda hore: tuubooyinka heerarka kala duwan ayaa inta badan u ololeeya xisbiga mashruuca si ay ugu habboonaato wax soo iibsiga dhexe, badbaadinta wakhtiga, dadaalka iyo dhibaatada;
Marka uu suuqu si tartiib tartiib ah uga soo wareego suuqa iibka una guuro suuqa iibsadaha, faa'iidooyinka "waqtiga, dadaalka iyo dhibka oo la keydiyo" waxaa loo wareejiyaa alaab-qeybiyeyaasha suuqa, iyadoo faa'iidooyin dhaqaale oo aad u badan leh. Tusaale ahaan: haddii lacag isku mid ah loo isticmaalo in lagu soo saaro / lagu kaydiyo hal shay oo caadi ah, hadda waxay soo saari kartaa / kaydin kartaa laba, saddex, afar ... Badeecadaha kaydinta ayaa aad u dhammaystiran, waxayna bixin karaan adeegyo waqtiyaysan oo loogu talagalay bartilmaameedyada, gaarka ah iyo baahida kala duwan ee iibsadayaasha.
02- Kala duwanaanshaha iyo gaar ahaaneed ee kala soocida tuubooyinka heerarka badan ee sida caadiga ah laga helo suuqa
Waxaa jira laba nooc oo jawaabo ah kala soocida tuubooyinka heerka-badan:
1. Marka loo eego heerarka u dhigma waxaa ka mid ah: Waqtigan xaadirka ah, waxaa jira tuubooyin heersare ah oo u dhexeeya halbeegyada Mareykanka, tuubooyin kala duwan oo u dhexeeya heerarka qaranka, iyo tuubooyinka heerarka kala duwan ee u dhexeeya heerarka Mareykanka iyo heerarka qaranka. Waxaa la filayaa in ay jiri doonaan tuubooyin heersare ah oo u dhexeeya heerarka qaranka, halbeegyada Maraykanka, iyo heerarka Yurub mustaqbalka;
2. Marka loo eego tirada heerarka lagu daray: Waxaa jira tuubooyin laba-geesood ah, tuubo saddex-standard ah, tuubo afar-standard ah, tuubooyinka shan-standard iyo qaabab kale;
Wakiilada ugu muhiimsan: Tuubooyinka laba-caadiga ah:ASTM A106 B, ASTM A53B; ASME SA106 B, ASTM A53B; ASME SA333 Gr.6, ASTM A333 Gr.6ASME SA106 B (C), ASTM A106B (C),GB/T 6479Q345E, Q355E, GB/T 18984 16MnDG;API 5L B(darajooyin bir ah oo u dhigma heerka caadiga ah), GB/T 9711 L245 (darajooyinka birta ee u dhiganta heerka)
Tuubooyinka saddex-heer ah:ASTM A106 B, ASTM A53 B,API 5L PSL1 B; ASME SA106 B, ASME SA53 B, ASTM A106B;
Tuubooyinka afar-standard ah iyo tuubooyinka shanta ah ayaa inta badan laga helaa dhuumaha caadiga ah ee Maraykanka iyo tuubooyinka gudbinta dareeraha: Wakiilada caadiga ah:ASTM A106B, ASMESA106 B, ASTM A53Gr.B, API 5L PSL1 B, ASTM A333 Gr.6,API 5L X42iyo halbeegyo iyo agabyo kale.
Waqtiga boostada: Mar-13-2025