설명
공장에서 제작한 맞대기 용접 파이프 피팅
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, 선박, pharmaceutical and water-treatment piping.
은 무엇입니까? ASTM A403 WP316L butt weld pipe cap?
안 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, 온도, cleaning chemicals and the project corrosion allowance.
WP316L pipe cap specifications
| 제품 유형 | Butt weld pipe cap / end cap / BW cap |
|---|---|
| 재료 사양 | ASTM A403 WP316L |
| 재료 지정 | UNS S31603; 일반적으로 EN과 상호 참조됨 1.4404 / X2CrNiMo17-12-2 |
| 치수표준 | ASME B16.9; MSS SP-43 option where applicable |
| 공칭 크기 | NPS 1/2–48 / DN15~DN1200, subject to material, wall and manufacturing route |
| 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 to the ordered piping specification |
| 표면 | Pickled/passivated, solution-annealed finish or project-specific treatment |
| 선적 서류 비치 | EN 10204 3.1 MTC, 열수 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 WP316L, ASME B16.9, NPS, matching pipe schedule, 건설, bevel and supplementary examination. Include the pipe specification when an exact bore or special wall is required.
유럽 프로젝트
State the required EN material designation such as 1.4404, DN size, 벽 두께, fitting dimensional standard, PED-related documentation if applicable and EN 10204 inspection certificate type.
WP316L vs WP304L pipe cap
| 선택 포인트 | WP316L | WP304L |
|---|---|---|
| 미국 지정 | S31603 | S30403 |
| 몰리브덴 | 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 |
| 일반적인 선택 | 화학적인, 선박, water treatment and demanding hygienic service | Clean utilities, food processing and general industrial service |
일반적인 애플리케이션
| 산업 | 대표적인 서비스 | 선정 이유 |
|---|---|---|
| 화학 처리 | Process headers, drains and equipment branch closures | Corrosion resistance plus welded system integrity |
| 해양 및 수처리 | Seawater-adjacent and chloride-bearing utility lines | Improved pitting resistance versus 304L in many conditions |
| 제약 | Clean utilities and validated process support systems | Low-carbon weldability and traceable stainless construction |
| 음식과 음료 | Cleaning circuits and corrosive product lines | Cleanable stainless surface and durable closure |
적용 사례는 참고용일 뿐입니다.. 프로젝트 엔지니어는 재료 호환성을 확인해야 합니다., 부식 허용량, 영향 요구사항 및 설계 코드 준수.
조작, 검사 및 문서화
The manufacturing route may include forming, 용체화 열처리, weld processing where applicable, 구경 측정, 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.
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 does WP316L mean?
WP316L identifies a wrought austenitic stainless steel fitting grade under ASTM A403. UNS S31603 is the corresponding alloy designation.
하다 ASME B16.9 define the material?
아니요. ASME B16.9 primarily addresses dimensions, 공차, 평가, 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, 10에스, 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. 온도, 염화물 농도, 흐름, 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?
예, when included in the purchase order. 히트 넘버 추적성, EN 10204 3.1 인증, PMI and dimensional inspection can be supplied to the agreed inspection plan.
Request a WP316L pipe cap quotation
Send the NPS or DN, 일정, 수량, 건설, bevel and inspection requirements for a project-specific quotation.
