설명
공장에서 제작한 맞대기 용접 파이프 피팅
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.
은 무엇입니까? ASTM A403 WP304L pipe end cap?
안 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
| 제품 유형 | Stainless steel butt weld pipe end cap / BW cap |
|---|---|
| 재료 사양 | ASTM A403 WP304L |
| 재료 지정 | UNS S30403; 일반적으로 EN과 상호 참조됨 1.4307 / X2CrNi18-9 |
| 치수표준 | ASME B16.9; MSS SP-43 option where applicable |
| 공칭 크기 | NPS 1/2–48 / DN15~DN1200, 벽 및 제조 경로에 따라 다름 |
| 벽 두께 | Sch 5S, 10에스, 40에스, 80에스, 160, XXS 및 프로젝트별 벽 |
| 건설 | 적용 가능한 경우 이음새가 없거나 용접되어 주문됨 |
| 준비 종료 | Butt-weld bevel matched to pipe wall and project specification |
| 표면 | Pickled/passivated, solution-annealed finish or specified treatment |
| 선적 서류 비치 | EN 10204 3.1 MTC, 열 추적성, 주문 시 치수 보고서 및 PMI |
치수 및 공차는 주문한 표준 및 에디션을 따릅니다.. 최종 압력-온도 적합성은 배관 설계 코드에 따라 결정됩니다., 재료, 벽 두께, 파이프 및 서비스 조건 일치.
ASME 및 유럽 프로젝트 요구 사항
북미 프로젝트
지정하다 ASTM A403 WP304L, ASME B16.9, NPS, 파이프 일정, construction and weld-end preparation. State any supplementary testing or cleanliness requirement.
유럽 프로젝트
Specify the required EN grade such as 1.4307, DN, 벽 두께, dimensional standard and inspection-document type. Project and regulatory requirements must be listed explicitly.
WP304L vs WP316L pipe end cap
| 선택 포인트 | WP304L | WP316L |
|---|---|---|
| 미국 지정 | 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 |
일반적인 애플리케이션
| 산업 | 대표적인 서비스 | 선정 이유 |
|---|---|---|
| 음식과 음료 | Product transfer, clean utilities and equipment branches | Cleanable surface and familiar stainless material family |
| 제약 | Purified utility support and non-critical process lines | Low-carbon welded construction and documentation options |
| 물 시스템 | 처리수, air and plant utility closures | Good general corrosion resistance |
| 조작 | 스키드, 선박, pumps and general process piping | Balanced cost, fabrication and durability |
적용 사례는 참고용일 뿐입니다.. 프로젝트 엔지니어는 재료 호환성을 확인해야 합니다., 부식 허용량, 영향 요구사항 및 설계 코드 준수.
조작, 검사 및 문서화
Production can include forming, 용체화 열처리, 구경 측정, 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.
외경, 전체 길이, 벽 두께, ovality and bevel geometry checked as ordered.
PT, MT, 유타, 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.
RFQ 체크리스트
- 재질등급 및 제품사양
- 차원 표준 및 에디션
- NPS 또는 DN 크기
- 파이프 일정 또는 정확한 벽 두께
- 심리스 또는 용접 구조, 필요할 때
- 최종 준비 및 베벨 디테일
- 수량 및 배송지
- MTC, NDE 및 제3자 검사 요구 사항
자주 묻는 질문
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, 온도, 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, 일정, 수량, 건설, surface and documentation requirements for a complete technical offer.
