Beschreibung
Werkseitig hergestellter Rohrverbinder zum Stumpfschweißen
ASTM A420 WPL6 Low Temperature Pipe Cap
A butt-welded pipeline closure for low-temperature carbon steel systems, supplied against the ordered impact test, heat treatment and traceability requirements.
Was ist ein ASTM A420 WPL6 low-temperature pipe cap?
Ein ASTM A420 WPL6 pipe cap is a wrought low-temperature carbon steel fitting used to close the end of a butt-welded pipeline. It is selected when the design specification requires carbon steel fitting toughness at a stated low temperature rather than the general moderate-temperature service associated with ASTM A234 WPB.
WPL6 should not be treated as a generic cryogenic alloy. Allowable design temperature and suitability depend on the ordered heat treatment, impact test temperature and results, Wandstärke, piping code and complete service conditions. These requirements must be confirmed before manufacture.
A420 WPL6 low-temperature cap specifications
| Produkttyp | Low-temperature carbon steel butt weld pipe cap |
|---|---|
| Materialspezifikation | ASTM A420 WPL6 |
| Maßstandard | ASME B16.9 |
| Nenngröße | NPS 1/2–48 / DN15–DN1200, Abhängig von der Wand und dem Herstellungsweg |
| Wandstärke | Standardpläne, heavy wall, XXS und projektspezifische Wand |
| Konstruktion | Je nach Bedarf und Bestellung nahtlos oder geschweißt |
| Wärmebehandlung | In Übereinstimmung mit ASTM A420 and the ordered project requirements |
| Schlagprüfung | Testtemperatur, specimen requirements and acceptance criteria must be stated or confirmed from the applicable specification |
| Vorbereitung beenden | Butt-weld bevel to the matching pipe wall and welding detail |
| Dokumentation | EN 10204 3.1 MTC, heat-treatment and impact-test records, dimensional and NDE reports as ordered |
Maße und Toleranzen richten sich nach der bestellten Norm und Ausgabe. Die endgültige Druck-Temperatur-Eignung wird durch die Rohrleitungskonstruktionsvorschriften bestimmt, Material, Wandstärke, passende Rohr- und Betriebsbedingungen.
ASME- und europäische Projektanforderungen
Nordamerikanische Projekte
Angeben ASTM A420 WPL6, ASME B16.9, NPS, Zeitplan, Konstruktion, Wärmebehandlung, impact test temperature and acceptance criteria, plus any supplementary NDE or sour-service restrictions.
Europäische Projekte
Specify the required EN low-temperature steel grade and product standard if the project is EN-based. Include DN, Wand, minimale Auslegungstemperatur, impact criteria, regulatory requirements and EN 10204 Zertifikatstyp.
A420 WPL6 vs A234 WPB pipe cap
| Auswahlpunkt | ASTM A420 WPL6 | ASTM A234 WPB |
|---|---|---|
| Service focus | Low-temperature carbon steel piping | Mäßig- and elevated-temperature carbon steel piping |
| Impact toughness | Ordered low-temperature impact testing is central to material qualification | Project or code impact testing must be considered separately |
| Documentation focus | Heat treatment and impact test records | Chemie, mechanical properties and general inspection records |
| Typische Auswahl | Refrigerated process, cold climate and low-temperature utilities | Öl, Gas, Dampf, power and general process service |
Typische Anwendungen
| Industrie | Typischer Service | Auswahlgrund |
|---|---|---|
| Low-temperature process | Cold hydrocarbon and process utility closures | Specified impact toughness at the ordered temperature |
| Kühlung | Industrial refrigeration auxiliaries and headers | Low-temperature carbon steel material route |
| Cold-climate facilities | Outdoor process and utility systems | Project-defined toughness and traceability |
| LPG/LNG support systems | Selected non-cryogenic auxiliaries within qualified temperature limits | Carbon steel solution where the design specification explicitly permits WPL6 |
Anwendungsbeispiele dienen lediglich der Orientierung. Der Projektingenieur muss die Materialverträglichkeit bestätigen, Korrosionszuschlag, Auswirkungsanforderungen und Einhaltung von Design-Codes.
Herstellung, Inspektion und Dokumentation
WPL6 production and release require careful control of raw material, Wärmebehandlung, impact specimens, test temperature and traceability. The manufacturer must receive the complete minimum-design-temperature and acceptance requirements before confirming supply.
Testtemperatur, specimen orientation, size and absorbed-energy criteria reviewed against the order.
Treatment route and batch traceability linked to the material certificate.
Cap geometry, Wand, bevel and specified NDE verified before release.
MTC, Wirkungsergebnisse, heat treatment and inspection records compiled as ordered.
RFQ-Checkliste
- Materialqualität und Produktspezifikation
- Maßstandard und Ausgabe
- NPS- oder DN-Größe
- Rohrplan oder genaue Wandstärke
- Nahtlose oder geschweißte Konstruktion, bei Bedarf
- Endvorbereitung und Abschrägungsdetails
- Menge und Lieferort
- MTC, NDE- und Inspektionsanforderungen durch Dritte
Häufig gestellte Fragen
Was ist ASTM A420 WPL6 used for?
It is a low-temperature carbon steel fitting grade used where the piping specification requires verified toughness at a defined low temperature.
What is the minimum service temperature of WPL6?
A single universal service limit should not be assigned without the applicable piping code, Wärmebehandlung, wall thickness and ordered impact test data. Confirm the project minimum design metal temperature and acceptance requirements.
Is WPL6 a cryogenic stainless steel?
NEIN. WPL6 is a low-temperature carbon steel fitting grade. True cryogenic services may require austenitic stainless steel or nickel alloy selected by the project engineer.
What documents prove low-temperature qualification?
The data package commonly includes the MTC, heat-treatment record and impact-test report showing specimen details, test temperature and results, plus traceability to the fitting heat or batch.
Can heavy-wall WPL6 caps be supplied?
Ja, subject to a technical review of size, exact wall, Formungsroute, heat treatment and impact specimen requirements.
Request an A420 WPL6 pipe cap quotation
Include the minimum design temperature, impact test requirement, Größe, Wand, quantity and documentation package for an accurate offer.
