Tanım
Fabrika yapımı alın kaynaklı boru bağlantı parçası
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.
Nedir ASTM A403 WP304L pipe end cap?
Bir 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
| Ürün türü | Stainless steel butt weld pipe end cap / BW cap |
|---|---|
| Malzeme özellikleri | ASTM A403 WP304L |
| Malzeme tanımı | UNS S30403; genellikle EN ile çapraz referans verilir 1.4307 / X2CrNi18-9 |
| Boyutsal standart | ASME B16.9; MSS SP-43 option where applicable |
| Nominal boyut | NPS1/2–48 / DN15–DN1200, duvara ve üretim yoluna tabidir |
| Duvar kalınlığı | Sch 5S, 10S, 40S, 80S, 160, XXS and project-specific wall |
| Yapı | Uygulanabilir ve siparişe göre dikişsiz veya kaynaklı |
| Hazırlığı sonlandır | Butt-weld bevel matched to pipe wall and project specification |
| Yüzey | Pickled/passivated, solution-annealed finish or specified treatment |
| Dokümantasyon | EN 10204 3.1 MTC, ısı izlenebilirliği, sipariş edildiğinde boyutsal rapor ve PMI |
Boyutlar ve toleranslar sipariş edilen standart ve baskıya uygundur. Nihai basınç-sıcaklık uygunluğu boru tasarım koduna göre belirlenir, malzeme, duvar kalınlığı, eşleşen boru ve servis koşulları.
ASME ve Avrupa proje gereksinimleri
Kuzey Amerika projeleri
Belirt ASTM A403 WP304L, ASME B16.9, NPS'ler, boru programı, construction and weld-end preparation. State any supplementary testing or cleanliness requirement.
Avrupa projeleri
Specify the required EN grade such as 1.4307, DN, duvar kalınlığı, dimensional standard and inspection-document type. Project and regulatory requirements must be listed explicitly.
WP304L vs WP316L pipe end cap
| Seçim noktası | WP304L | WP316L |
|---|---|---|
| ABD tanımı | 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 |
Tipik uygulamalar
| Endüstri | Tipik hizmet | Seçim nedeni |
|---|---|---|
| Yiyecek ve içecek | Product transfer, clean utilities and equipment branches | Cleanable surface and familiar stainless material family |
| İlaç | Purified utility support and non-critical process lines | Low-carbon welded construction and documentation options |
| Water systems | Arıtılmış su, air and plant utility closures | Good general corrosion resistance |
| Üretme | Kızaklar, vessels, pumps and general process piping | Balanced cost, fabrication and durability |
Uygulama örnekleri yalnızca yol göstericidir. Proje mühendisi malzeme uyumluluğunu doğrulamalıdır, korozyon payı, etki gereksinimleri ve tasarım kodu uyumluluğu.
Üretme, muayene ve dokümantasyon
Production can include forming, çözelti ısıl işlemi, kalibrasyon, 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.
Dış çap, toplam uzunluk, duvar kalınlığı, ovality and bevel geometry checked as ordered.
PT, MT, UT, 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.
Teklif talebi kontrol listesi
- Malzeme kalitesi ve ürün özellikleri
- Boyutsal standart ve sürüm
- NPS veya DN boyutu
- Boru programı veya tam duvar kalınlığı
- Dikişsiz veya kaynaklı yapı, gerektiğinde
- Son hazırlık ve eğim detayı
- Miktar ve teslimat hedefi
- MTC, NDE ve üçüncü taraf denetim gereksinimleri
Sık sorulan sorular
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, sıcaklık, 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.
Which inspection documents are available?
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, takvim, miktar, yapı, surface and documentation requirements for a complete technical offer.
