설명
하스텔로이 C22 / Alloy C22 Flanges – ASTM B564 UNS N06022
Forged Alloy C22 flange solutions for demanding mixed, oxidizing and reducing chemical environments after project-specific corrosion review.
Quick engineering answer
Hastelloy C22 and Alloy C22 refer to UNS N06022, a nickel-chromium-molybdenum alloy with tungsten. ASTM B564 is the forged-product specification used for applicable C22 flanges; UNS N06022 is the correct UNS designation.
제품사양
| 재료 | ASTM B564 UNS N06022 nickel-chromium-molybdenum alloy |
|---|---|
| Available forms | 용접 목, 눈이 먼, 슬립온, 소켓 용접, 스레드, 랩 조인트, orifice and drawing-specific flanges where permitted |
| Dimensional standards | ASME B16.5; ASME B16.47 for applicable large diameters; EN 1092-1 or approved drawings on request |
| Pressure classes | 수업 150, 300, 400, 600, 900, 1500 그리고 2500 within the selected standard, material group and size limits |
| 깃 달기 | 제기된 얼굴 (RF), 링형 조인트 (RTJ), 편평한 얼굴 (FF) where permitted, or drawing-specific facing |
| 선적 서류 비치 | EN 10204 3.1 MTC, 열수 추적성, dimensional report and ordered inspection records |
Pressure-temperature ratings depend on the governing code, flange standard edition, 소재 그룹, 규모와 등급. Confirm the complete project specification before ordering.
Grade and terminology check
| Correct UNS designation | N06022 | Use on purchase orders and MTCs |
|---|---|---|
| Forged product standard | ASTM B564 | Dimensional requirements are specified separately |
| Material comparison | C22 and C276 are distinct grades | No automatic substitution |
재료 선택
Alloy C22 offers broad corrosion resistance in many severe chemical-process environments, but no alloy is universally immune. 온도, 집중, 오염물질, 틈새, fabrication and actual process conditions must be reviewed using relevant corrosion data.
Matching-material note: C22 and C276 are different alloys and should not be interchanged by name. Match adjoining products to their correct product-form standard and obtain written engineering approval for any proposed substitution.
Quality controls available
- PMI and controlled material segregation
- Heat number and EN 10204 3.1 추적성
- Corrosion testing, UT or PT when ordered
- 차원, facing and marking inspection
일반적인 애플리케이션
Applications are selection cues, not blanket approvals. Process media, 압력, 온도, corrosion data, fatigue, fabrication and code requirements govern final suitability.
Standards hierarchy
견적에 필요한 정보
Provide the material grade, 플랜지형, 스탠다드와 에디션, NPS 또는 DN, pressure class or PN rating, 파이프 일정 또는 정확한 보어, facing and finish, 수량, 배달 목적지, 열처리, 임사체험, 테스트, certification and third-party inspection requirements.
자주 묻는 질문
What is the correct UNS number for Hastelloy C22?
The correct designation is UNS N06022. Purchase documents should also state ASTM B564 for forged flanges.
Are Alloy C22 and Hastelloy C22 the same?
Alloy C22 is the generic grade name and Hastelloy C22 is a recognized trade name associated with UNS N06022. The UNS number and product standard provide the clearest procurement identity.
Can C22 replace C276?
Not without engineering review. They have different chemistry and may behave differently in the actual service environment, fabrication route and project design.
Request a specification review and quotation
Send the complete RFQ or piping material specification. SASA FLANGE will review grade identity, 치수, 깃 달기, inspection and documentation before production.
