Standard dell'American Petroleum Institute

Specifiche dell’involucro e dei tubi

Industria del petrolio e del Gas – tubi in acciaio per tubazioni o rivestimenti di pozzi di petrolio e gas

Questo standard internazionale si applica ai seguenti raccordi conformi alla specifica  API 5B:

\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\—\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\—Corta filettatura tonda (STC);

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\—\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\—Corpo filettato tondo lungo (LC);

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\—\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\—Corpo filettato piegato (BC);

\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\—\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\—Carcassa connessione diretta (XC) ;

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\—\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\—Tubo non ispessito (NU);

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\—\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\—Tubo ispessito esternamente (UE);

\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\—\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\—Tubo dell’olio con giunto integrale (IJ) .

• Termini, definizioni, simboli e abbreviazioni
• Termini e definizioni

Ai fini della presente norma internazionale, si applicano i termini e le definizioni per le operazioni di trattamento termico fornite nella norma ASTM A941 e i seguenti termini e definizioni.

• Accessori Materiale accessorio

Olio standard senza saldatura, rivestimento o tubo senza saldatura a pareti spesse, tubo meccanico o billetta da barra, forgiatura a caldo per la produzione di accessori.

• Thread API thread APIFilettature conformi alla specifica API 5B.

• Capacità del veicolo caricoIl numero di tubi caricati su un vagone ferroviario quando spediti dal produttore dei tubi.

• involucro involucroUn tubo viene calato dalla superficie in un pozzo perforato per fungere da rivestimento.

• Accessori per custodie e tubi accessorio involucro e tubi

Una sezione di tubo utilizzata in una serie di tubi per garantire l’integrità meccanica e di pressione all’interno della serie di tubi e per facilitare il raggiungimento di altre funzioni richieste alla serie di tubi.

Esempi di accessori: giunti di conversione, nippli di riduzione, collegamenti corti, tubo di flusso dell’olio giunti, giunti per soffiaggio di sabbia, ecc.

NOTA: gli allegati includono altri prodotti per tubi non specificamente coperti dalla presente norma internazionale o altri prodotti non coperti dalle specifiche ISO (API).

• Connettori connessioneAssieme connessione filettata componente tubo.

• Raffreddamento controllato raffreddamento controllato

Raffreddamento ad alta temperatura in modo predeterminato per evitare indurimento, fessurazioni o danni interni o per ottenere la microstruttura o le proprietà meccaniche desiderate.

• Accoppiamento accoppiamentoUn corpo cilindrico con filettatura interna utilizzato per collegare due tubi filettati.

Semilavorati di accoppiamento accoppiamento vuotoUno spazio vuoto senza thread da cui viene prodotto un accoppiamento.

4.1.10\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\ Accoppiamento vuoto stock di accoppiamentoTubi senza saldatura a pareti spesse o tubi meccanici per la produzione di giunti semilavorati.

4.1.11)\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\ difetto difettoUn’imperfezione abbastanza grande da giustificare il rifiuto di un prodotto secondo le disposizioni della presente norma internazionale.

4.1.12\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Tubo saldato elettrico Tubo elettrosaldato

Un tubo con un cordone di saldatura longitudinale senza metallo d’apporto, saldato a resistenza o saldato a induzione. Durante la fabbricazione, i bordi vengono saldati insieme mediante pressione meccanica, mentre l’apporto di calore è generato da corrente elettrica o resistenza.

4.1.13\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Serraggio controllato maneggio strettoAbbastanza stretto da non poter rimuovere il giunto senza una chiave per tubi.

4.1.14\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\  Lotto forno caloreMetallo prodotto da un processo a ciclo unico di fusione di un lotto di materiali.

4.1.15\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\ Analisi di fusione analisi termicaAnalisi della composizione chimica di un lotto termico rappresentativo riportato dall’acciaieria.

4.1.16\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\ Svantaggi imperfezioneDiscontinuità nella parete o sulla superficie di un prodotto che può essere rilevata mediante uno dei metodi NDE nella Tabella C.61 o Tabella E.61 della presente norma internazionale

4.1.17\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\  prova ispezioneIl processo di misurazione, ispezione, prova, controllo della filettatura o altro confronto di prodotti unitari in base ai requisiti corrispondenti.

4.1.18\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ Lotto di ispezione lotto di ispezioneUn numero limitato di prodotti fabbricati in condizioni di proprietà coerenti da ispezionare.

4.1.19\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\  Campione del lotto di ispezione campione del lotto di ispezioneUno o più prodotti selezionati da un lotto di ispezione che può rappresentare il lotto di ispezione.

4.1.20\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ u00a0 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\ Dimensione lotto di ispezione dimensione lotto di ispezioneIl numero di prodotti in un lotto di ispezione.

4.1.21\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\  Passo di tempra tempra interrottaQuando la temperatura del tubo raffreddato è significativamente più alta della temperatura del mezzo di raffreddamento, viene rimosso dal mezzo di raffreddamento e quindi raffreddato nuovamente.

4.1.22\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Codice1 etichetta 1Un designatore adimensionale per la dimensione o il diametro esterno specificato, utilizzato quando si ordina un tubo.

4.1.23\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\  Codice2 etichetta 2Un designatore adimensionale per il peso per unità di lunghezza, utilizzato quando si ordina un tubo.

4.1.24\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\  Radice lunghezzaUn tubo conforme ai requisiti della gamma della Tabella C.30 o della Tabella E.30 della presente norma internazionale può essere a estremità liscia, filettata o filettata e accoppiata.

4.1.25\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Difetti di linearità Imperfezione lineareLe imperfezioni includono, a titolo esemplificativo, giunture, pieghe, crepe, intaccature, tagli e sgorbie.

4.1.26\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ Impianto di produzione produttore

A seconda del contesto, si riferisce a uno o più dei seguenti produttori: impianto di produzione tubi, impianto di lavorazione tubi, impianto di lavorazione filettature, produttore di giunti, produttore di giunti pup, produttore di accessori.

4.1.27\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Nonlinearità imperfezione non lineare

Inclusi ma non limitati a cavità e difetti di stampaggio dello stampo con fondo arrotondato.

4.1.28\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\  tubo tuboUn termine generale per involucri, tubi, rivestimenti di involucri a estremità liscia e giunti pup.

4.1.29\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\   \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\ Stabilimento di produzione tubi mulino per tubiIl produttore, la società o il gruppo di società che gestisce l’impianto di produzione di tubi.

4.1.30\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\ Rivestimento semplice dell’estremità rivestimento dell’involucro con estremità lisciaDi solito ha uno spessore di parete maggiore di quello specificato in J55 e viene fornito non filettato.

4.1.31\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ u00a0 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\  Impianto di lavorazione processoreProduttori, aziende o gruppi che possono lavorare tubi trattati termicamente prodotti da fabbriche di tubi.

4.1.32\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\   \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\  prodotto prodottoSingoli pezzi o lotti di tubi, giunti, accessori, pezzi grezzi di accoppiamento o semilavorati di accoppiamento, a seconda dei casi.

4.1.33\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\ Sezione breve pup-jointInvolucro, tubo o rivestimento dell’involucro con estremità liscia più corto dell’intervallo di lunghezza 1.

4.1.34\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\  Materiale per le articolazioni del cuccioloOlio standard, rivestimento o tubo a parete spessa, tubo meccanico o barra per la produzione di giunti corti.

4.1.35\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Acquirente acquirenteLa parte responsabile della conferma dei requisiti dell’ordine e dell’effettuazione dei pagamenti per un prodotto.

4.1.36\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\ Crepa da spegnimento spegnere il crackLe cricche sono causate dalle tensioni generate durante la trasformazione dell’austenite in martensite nell’acciaio.

Nota: questa trasformazione è accompagnata da un aumento di volume.

4.1.37\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Tubo senza saldatura tubo senza giuntureProdotti di tubi in acciaio forgiato senza saldature.

NOTA: è realizzato in acciaio lavorato a caldo e, se necessario, può essere successivamente lavorato a freddo o trattato termicamente, o una combinazione di questi processi, per produrre la forma, la dimensione richiesta e prestazioni.

4.1.38\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\ Steel plate Skelp è un nastro di acciaio laminato a caldo utilizzato per realizzare tubi EW.

4.1.39\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Elaborazione finale speciale finitura speciale

Filettature la cui forma e caratteristiche della filettatura, specifiche di fabbricazione, dimensioni, serraggio dei giunti e prestazioni non rientrano nell’ambito di applicazione della presente norma internazionale.

4.1.40\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Protezione filo Protezione del filoCappucci o boccole utilizzati per proteggere filettature e guarnizioni durante la movimentazione, il trasporto e lo stoccaggio.

4.1.41\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ u00a0 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\  YouTube tuboUn tubo calato in un pozzo per produrre o iniettare fluido.

4.1.42\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  \\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\  Temperatura critica superiore temperatura critica superioreAr₃La temperatura alla quale l’austenite inizia a trasformarsi in ferrite durante il raffreddamento.

• Simboli e abbreviazioni

BC	Giunto corpo con filettatura trapezoidale
Cv	Prova d’urto Charpy con intaglio a V, energia minima assorbita
CVN	Charpy con tacca a V
D	Diametro esterno specificato del tubo
d	Calcola diametro interno
EMI	Ispezione elettromagnetica
UE	Giunto esterno tubo olio ispessito
EW	Processo di saldatura elettrica
FBH	Foro a fondo piatto
HBW	Prova di durezza Brinell con sfera in carburo di tungsteno
HBS	Durezza Brinell se testata con una sfera d’acciaio
HRC	Durezza Rockwell scala C
ID	il diametro interno di
IJ	Giunto per tubo dell’olio con giunto integrale
k	Costante utilizzata per calcolare l’allungamento
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\ LC	Giunto corpo filettato tondo lungo
N	Processo di trattamento termico\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\
N e T	Normalizzazione + rinvenimento
NDE	Test non distruttivi
NU	Nessun ispessimento del giunto del tubo dell’olio
OD	Diametro esterno
PSL	Livello delle specifiche del prodotto
Q	Tempra + rinvenimento

• Deviazione di dimensioni e peso
• Diametro esterno,D

la seguentedeviazioneApplicabile al diametro esterno del tubo D:

Codice 1	Diametro esterno (D\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\）deviation
4-1/2	\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\±0,79 mm (\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\±0.031in)
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\≥4-1/2	+1% D~-0,5% D

• Spessore della parete,t

Spessore della parete specificato della deviazione del tubo: 12,5%. Spessore della parete specificato del giunto grezzodeviazioneCome specificato nell’ordine.

• peso

quantità	deviazione
Singolo	+6.5%~-3.5%

18 144 kg (40 000 lb) o più	-1.75%
Carico del veicolo inferiore a 18.144 kg (40.000 libbre)	-3.5%
18.144 kg (40.000 libbre) o più per quantità di ordini	-1.75%
Quantità ordinabili inferiori a 18.144 kg (40.000 libbre)	-3.5%

• Stringere il segno del triangolo

Per tutte le dimensioni e i gradi di involucri con filettatura trapezoidale e gradi di acciaio H40, J55, K55 e M65Specifiche (Codice 1)Per involucri filettati rotondi di dimensione 16 e superiori, il segno del triangolo di serraggio deve essere stampato sulla superficie esterna di entrambe le estremità di ciascun tubo . Previo accordo tra l’acquirente e il produttore, il contrassegno triangolare può essere sostituito da una striscia di vernice bianca orizzontale larga 10 mm (3/8 pollici) e lunga 76 mm (3 pollici). posizionato all’estremità del sito vicino al triangolo o alla striscia verniciata orizzontale. Un segno di vernice bianca verticale largo 25 mm (1 pollice) e lungo 610 mm (24 pollici); inoltre, una segnaletica verticale in vernice bianca da 25 mm, larga 1 pollice e lunga 100 mm.

Per i gruppi 1 e 3, la marcatura triangolare deve essere eseguita solo utilizzando il metodo 2 o 4.Martello Pressione.

Per il Gruppo 2 (solo per i gradi C90 e T95), il contrassegno triangolare deve essere utilizzato solo con il terzo metodo Pressione del martello.

Per il Gruppo 2 (eccetto gradi C90 e T95) e il Gruppo 4, il contrassegno triangolare deve essere utilizzato utilizzando solo il terzo o il quarto metodo.Pressione del martello.

• Prodotti da 1,8 m (6 piedi) o più

Utilizzare uno o più dei seguenti metodi:

• Per tubi filettati, nippli e accessori: applicare una fascia stampata con vernice attorno al prodotto a una distanza non superiore a 0,6 m (24 pollici) dal raccordo o dall’estremità della filettatura interna.
• Per tubi con estremità liscia o tubi “maschio-maschio”: applicare una fascia stampata con vernice attorno al prodotto a una distanza non superiore a 0,6 m (24 pollici) da entrambe le estremità.
• Giunti: Verniciare l’intera superficie esterna del giunto compresa la fascia colorata del giunto corrispondente.
• Se il tubo viene fornito con giunti speciali o il tubo e il giunto sono di gradi di acciaio diversi (eccetto H40, J55 e K55 consentiti in 9.2.1

Per qualità di acciaio diverse da 300 mm2, tubi e giunti devono essere verniciati in conformità con le disposizioni di cui sopra a), b) e c).

• Giunto smontato
• Verniciare tutta la superficie esterna del giunto, compresa la fascia colorata corrispondente.
• Giunto con gioco speciale

Il colore dell’acciaio di cui è composto il giunto è dipinto sul giunto e attorno al centro del giunto è verniciata anche una striscia nera.

• Sezioni e accessori della marionetta di lunghezza inferiore a 1,8 m (6 piedi)

Dipingi l’intera superficie esterna, compresa la fascia colorata corrispondente, ad eccezione dei fili.

• Codice colore qualità acciaio

Il colore e il numero di bande colorate per ciascun tipo di acciaio sono mostrati nella Tabella C.66 o nella Tabella E.66.

• Rivestimento e protezione
• Rivestimenti – Tutti i gruppi
• Rivestimento protettivo durante il trasporto

Se non diversamente specificato nel contratto di acquisto, tubi e giunti dovranno essere dotati di un rivestimento esterno per prevenire la ruggine durante il trasporto. È necessario adottare misure per garantire che il rivestimento sia liscio, denso e il meno scrostato possibile. Il grado di rivestimento dovrà essere sufficiente a proteggere il tubo per almeno 3 mesi. Se non diversamente specificato nell’ordine di acquisto, il giunto può essere fornito senza rivestimento esterno (nudo), ad eccezione dell’eventuale rivestimento protettivo che può essere applicato sulla marcatura stampigliata.

Se è necessario un tubo nudo o un rivestimento speciale, è opportuno notare sull’ordine. Se è richiesto un rivestimento speciale, l’ordine deve inoltre indicare se il tubo è rivestito su tutta la lunghezza o non rivestito entro una certa distanza dall’estremità del tubo. Se non diversamente specificato, le estremità dei tubi non rivestite sono generalmente rivestite con uno strato di olio per prevenire la ruggine durante il trasporto.

Nota: i tubi di tipo 13Cr sono soggetti a vaiolatura locale se conservati in un ambiente umido. Particolare attenzione dovrebbe essere prestata al rivestimento, alla spedizione e allo stoccaggio.

• Rivestimento per conservazione a lungo termine

Dopo aver consultato l’acquirente e il produttore, i tubi immagazzinati per un lungo periodo, soprattutto in ambiente marino, possono richiedere rivestimenti protettivi interni ed esterni per prevenire la corrosione.

Si applica quanto segue:

• Nell’ambiente marino di stoccaggio a lungo termine concordato tra l’acquirente e il produttore, la protezione dalla corrosione del rivestimento dovrebbe essere efficace; un lieve scolorimento della superficie dovrebbe essere accettabile nell’ambiente marino di stoccaggio a lungo termine;
• Non è necessario rimuovere il rivestimento protettivo prima di calare il tubo nel pozzo. c) È importante applicare correttamente il rivestimento. Vanno valutati i seguenti parametri:

– secchezza del tubo;

– pulizia dei tubi;

– temperatura del rivestimento;

\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ —\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\—Spessore rivestimento.