Descripción
Accesorio de tubería para soldadura a tope fabricado en fábrica
ASTM A403 WP304L Stainless Steel Pipe End Cap
An economical low-carbon stainless steel butt-weld closure for hygienic, utility and general corrosion-resistant piping systems.
¿Qué es un ASTM A403 WP304L pipe end cap?
Un ASTM A403 WP304L pipe end cap is a factory-made wrought stainless steel fitting that closes the end of a butt-welded piping run. It has a contoured closed end, a cylindrical skirt and a weld preparation matched to the ordered pipe wall.
WP304L is the low-carbon version of 304 stainless steel and is widely specified for welded clean-service and general process equipment. It is a practical choice when broad corrosion resistance is required but the service does not justify the molybdenum-bearing WP316L grade.
WP304L pipe end cap specifications
| Tipo de producto | Stainless steel butt weld pipe end cap / BW cap |
|---|---|
| Especificación de materiales | ASTM A403 WP304L |
| Designación de materiales | UNS S30403; comúnmente cruzado con EN 1.4307 / X2CrNi18-9 |
| Estándar dimensional | ASME B16.9; MSS SP-43 option where applicable |
| Tamaño nominal | NPS 1/2–48 / DN15–DN1200, sujeto a muro y ruta de fabricación |
| 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 matched to pipe wall and project specification |
| Superficie | Pickled/passivated, solution-annealed finish or specified treatment |
| Documentación | EN 10204 3.1 MTC, trazabilidad del 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 WP304L, ASME B16.9, NPS, cronograma de tuberías, construction and weld-end preparation. State any supplementary testing or cleanliness requirement.
proyectos europeos
Specify the required EN grade such as 1.4307, DN, espesor de pared, dimensional standard and inspection-document type. Project and regulatory requirements must be listed explicitly.
WP304L vs WP316L pipe end cap
| Punto de selección | WP304L | WP316L |
|---|---|---|
| designación estadounidense | S30403 | S31603 |
| Alloy difference | 18Cr-8Ni family without intentional molybdenum addition | Molybdenum-bearing austenitic stainless steel |
| Best value | General clean and mildly corrosive service | More demanding chloride-bearing or chemical service |
| Design caution | Verify chloride exposure and cleaning chemistry | Still requires a service-specific corrosion review |
Aplicaciones típicas
| Industria | Servicio tipico | Razón de selección |
|---|---|---|
| Alimentos y bebidas | Product transfer, clean utilities and equipment branches | Cleanable surface and familiar stainless material family |
| Farmacéutico | Purified utility support and non-critical process lines | Low-carbon welded construction and documentation options |
| Water systems | Treated water, air and plant utility closures | Good general corrosion resistance |
| Fabricación | Skids, vasos, pumps and general process piping | Balanced cost, fabrication and durability |
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
Production can include forming, tratamiento térmico de solución, calibración, bevel machining, pickling/passivation and dimensional inspection. Cleanliness, surface finish and packaging should be defined when the application is hygienic.
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 is the difference between WP304 and WP304L?
WP304L has a lower maximum carbon content, which is commonly preferred for welded fabrication. The ordered ASTM A403 grade must be stated on the purchase specification.
Is WP304L suitable for chloride service?
Its suitability depends on chloride level, temperatura, flow and crevice conditions. WP316L, duplex or super duplex may be more appropriate when localized corrosion risk is higher.
Are seamless and welded caps available?
Both construction routes may be available depending on size, wall and quantity. State a mandatory construction route in the RFQ if the project specification requires one.
How is the bevel selected?
The end preparation is matched to the ordered pipe wall and welding procedure. Provide the pipe schedule or exact wall thickness and any project bevel detail.
¿Qué documentos de inspección están disponibles??
EN 10204 3.1 MTC, dimensional inspection and heat traceability are commonly requested. PMI and additional NDE can be arranged when ordered.
Request a WP304L end cap quotation
Provide the size, cronograma, cantidad, construcción, surface and documentation requirements for a complete technical offer.
