Descripción
Accesorio de tubería para soldadura a tope fabricado en fábrica
ASTM A403 WP316L Butt Weld Pipe Cap to ASME B16.9
A corrosion-resistant 316L stainless steel end closure with a weld bevel for high-integrity process, marina, pharmaceutical and water-treatment piping.
¿Qué es un ASTM A403 WP316L butt weld pipe cap?
Un ASTM A403 WP316L pipe cap is a wrought austenitic stainless steel butt-welding fitting used to close the end of a pipe, header or branch permanently. Its contoured closed end and prepared weld bevel support a compact, leak-tight termination without a bolted joint.
WP316L combines low carbon content with molybdenum alloying. It is frequently selected where welded fabrication and localized corrosion resistance are more important than the lower initial cost of WP304L. Actual suitability must be checked against chloride level, temperatura, cleaning chemicals and the project corrosion allowance.
WP316L pipe cap specifications
| Tipo de producto | Butt weld pipe cap / end cap / BW cap |
|---|---|
| Especificación de materiales | ASTM A403 WP316L |
| Designación de materiales | UNS S31603; comúnmente cruzado con EN 1.4404 / X2CrNiMo17-12-2 |
| Estándar dimensional | ASME B16.9; MSS SP-43 option where applicable |
| Tamaño nominal | NPS 1/2–48 / DN15–DN1200, subject to material, wall and manufacturing route |
| Grosor de la pared | Sch 5S, 10S, 40S, 80S, 160, XXS and project-specific wall |
| Construcción | Sin costura o soldado según corresponda y ordenado |
| Preparación final | Butt-weld bevel to the ordered piping specification |
| Superficie | Pickled/passivated, solution-annealed finish or project-specific treatment |
| Documentación | EN 10204 3.1 MTC, trazabilidad del número de calor, Informe dimensional y PMI cuando se solicita. |
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 A403 WP316L, ASME B16.9, NPS, matching pipe schedule, construcción, bevel and supplementary examination. Include the pipe specification when an exact bore or special wall is required.
proyectos europeos
State the required EN material designation such as 1.4404, DN size, espesor de pared, fitting dimensional standard, PED-related documentation if applicable and EN 10204 inspection certificate type.
WP316L vs WP304L pipe cap
| Punto de selección | WP316L | WP304L |
|---|---|---|
| designación estadounidense | S31603 | S30403 |
| Molibdeno | Typically alloyed with molybdenum | No intentional molybdenum addition |
| Relative corrosion behavior | Better localized corrosion resistance in many chloride services | Good general corrosion resistance for less aggressive service |
| Selección típica | Químico, marina, water treatment and demanding hygienic service | Clean utilities, food processing and general industrial service |
Aplicaciones típicas
| Industria | Servicio tipico | Razón de selección |
|---|---|---|
| Procesamiento químico | Process headers, drains and equipment branch closures | Corrosion resistance plus welded system integrity |
| Marine and water treatment | Seawater-adjacent and chloride-bearing utility lines | Improved pitting resistance versus 304L in many conditions |
| Farmacéutico | Clean utilities and validated process support systems | Low-carbon weldability and traceable stainless construction |
| Alimentos y bebidas | Cleaning circuits and corrosive product lines | Cleanable stainless surface and durable closure |
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
The manufacturing route may include forming, tratamiento térmico de solución, weld processing where applicable, calibración, bevel machining, pickling/passivation and final inspection. PMI and surface-condition requirements should be stated at quotation stage.
Heat-number control and MTC review against the purchase specification.
Diámetro externo, longitud total, espesor de pared, ovality and bevel geometry checked as ordered.
PT, MONTE, Utah, RT, hardness or third-party inspection can be arranged when specified.
EN 10204 3.1 certificate and inspection records supplied according to the purchase order.
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
What does WP316L mean?
WP316L identifies a wrought austenitic stainless steel fitting grade under ASTM A403. UNS S31603 is the corresponding alloy designation.
Hace ASME B16.9 define the material?
No. ASME B16.9 primarily addresses dimensions, tolerancias, calificaciones, testing and marking for factory-made wrought butt-welding fittings. ASTM A403 defines the stainless steel material requirements.
Which schedules can be supplied?
Common requirements include Sch 5S, 10S, 40S and 80S, with heavier or project-specific walls available subject to size and manufacturing route.
Is WP316L always suitable for seawater?
No material should be selected from grade name alone. Temperatura, concentración de cloruro, fluir, crevices and cleaning chemistry must be reviewed; duplex or super duplex may be preferred for more severe service.
Can PMI and EN 10204 3.1 documents be supplied?
Sí, when included in the purchase order. Trazabilidad del número de calor, EN 10204 3.1 proceso de dar un título, PMI and dimensional inspection can be supplied to the agreed inspection plan.
Request a WP316L pipe cap quotation
Send the NPS or DN, cronograma, cantidad, construcción, bevel and inspection requirements for a project-specific quotation.
