Descripción
Accesorio de tubería para soldadura a tope fabricado en fábrica
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.
¿Qué es un ASTM A420 WPL6 low-temperature pipe cap?
Un 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, espesor de pared, piping code and complete service conditions. These requirements must be confirmed before manufacture.
A420 WPL6 low-temperature cap specifications
| Tipo de producto | Low-temperature carbon steel butt weld pipe cap |
|---|---|
| Especificación de materiales | ASTM A420 WPL6 |
| Estándar dimensional | ASME B16.9 |
| Tamaño nominal | NPS 1/2–48 / DN15–DN1200, sujeto a muro y ruta de fabricación |
| Grosor de la pared | Horarios estándar, heavy wall, XXS and project-specific wall |
| Construcción | Sin costura o soldado según corresponda y ordenado |
| Tratamiento térmico | De acuerdo con ASTM A420 and the ordered project requirements |
| Impact testing | Test temperature, specimen requirements and acceptance criteria must be stated or confirmed from the applicable specification |
| Preparación final | Butt-weld bevel to the matching pipe wall and welding detail |
| Documentación | EN 10204 3.1 MTC, heat-treatment and impact-test records, dimensional and NDE reports as ordered |
Las dimensiones y tolerancias siguen el estándar y la edición solicitados.. La idoneidad final de la presión y la temperatura está determinada por el código de diseño de tuberías., material, espesor de pared, condiciones adecuadas de tubería y servicio.
ASME y requisitos de proyectos europeos.
proyectos norteamericanos
Especificar ASTM A420 WPL6, ASME B16.9, NPS, cronograma, construcción, tratamiento térmico, impact test temperature and acceptance criteria, plus any supplementary NDE or sour-service restrictions.
proyectos europeos
Specify the required EN low-temperature steel grade and product standard if the project is EN-based. Include DN, muro, minimum design temperature, impact criteria, regulatory requirements and EN 10204 tipo de certificado.
A420 WPL6 vs A234 WPB pipe cap
| Punto de selección | ASTM A420 WPL6 | ASTM A234 WPB |
|---|---|---|
| Service focus | Low-temperature carbon steel piping | Moderado- 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 | Química, mechanical properties and general inspection records |
| Selección típica | Refrigerated process, cold climate and low-temperature utilities | Aceite, gas, vapor, power and general process service |
Aplicaciones típicas
| Industria | Servicio tipico | Razón de selección |
|---|---|---|
| Low-temperature process | Cold hydrocarbon and process utility closures | Specified impact toughness at the ordered temperature |
| Refrigeration | 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 |
Los ejemplos de aplicación son sólo orientativos. El ingeniero del proyecto debe confirmar la compatibilidad del material., tolerancia a la corrosión, Requisitos de impacto y cumplimiento del código de diseño..
Fabricación, inspección y documentación
WPL6 production and release require careful control of raw material, tratamiento térmico, impact specimens, test temperature and traceability. The manufacturer must receive the complete minimum-design-temperature and acceptance requirements before confirming supply.
Test temperature, specimen orientation, size and absorbed-energy criteria reviewed against the order.
Treatment route and batch traceability linked to the material certificate.
Cap geometry, muro, bevel and specified NDE verified before release.
MTC, impact results, heat treatment and inspection records compiled as ordered.
Lista de verificación de solicitudes de presupuesto
- Grado del material y especificación del producto.
- Estándar dimensional y edición.
- Tamaño NPS o DN
- Horario de tubería o espesor de pared exacto
- Construcción sin costuras o soldada, cuando hace falta
- Preparación de extremos y detalle de bisel.
- Cantidad y destino de entrega
- MTC, Requisitos de inspección de NDE y de terceros
Preguntas frecuentes
Qué es 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, tratamiento térmico, wall thickness and ordered impact test data. Confirm the project minimum design metal temperature and acceptance requirements.
Is WPL6 a cryogenic stainless steel?
No. 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?
Sí, subject to a technical review of size, exact wall, formando ruta, heat treatment and impact specimen requirements.
Request an A420 WPL6 pipe cap quotation
Include the minimum design temperature, impact test requirement, tamaño, muro, quantity and documentation package for an accurate offer.
