ASTM B564 UNS N06625 Flanges: 등급 1 vs Grade 2
빠른 답변: ASTM B564 니켈 합금 단조품을 커버합니다., 포함 UNS N06625 플랜지, but it recognizes two heat-treatment conditions. 등급 1 is annealed and is normally employed up to 1100°F (593℃). 등급 2 is solution annealed and is normally employed above 1100°F where resistance to creep and rupture is required. These are specification conditions—not universal design limits. The purchase order must also define the flange standard, 크기, 수업, 깃 달기, bore and testing.
Buyers often write only “ASTM B564 UNS N06625 flange.” That identifies the material route, but it does not fully define the required item. 등급 1 versus Grade 2 affects heat-treatment condition and intended temperature regime, ~하는 동안 ASME B16.5 or another dimensional standard controls a different part of the order.
무엇 ASTM B564 Covers
ASTM B564 is a material specification for nickel-alloy forgings. 을 위한 UNS N06625, it sets requirements associated with chemistry, 열처리, mechanical properties and testing. 그렇지 않다, 그 자체로, define every flange dimension or pressure-temperature rating.
Keep the standards separate: ASTM B564 answers “what forged material and condition?” A dimensional standard such as ASME B16.5 answers “what flange dimensions, 공차, marking and pressure-temperature framework?” The project specification and purchase order connect both.
ASTM B564 등급 1 vs Grade 2
| 확인하다 | 등급 1 | 등급 2 |
|---|---|---|
| 상태 | 단련 | Solution annealed |
| ASTM service note | Normally employed up to 1100°F (593℃) | Normally employed above 1100°F (593℃) where creep and rupture resistance are required |
| Buyer action | 주 등급 1 and verify the required condition on the MTC | 주 등급 2 and verify the solution-annealed condition and project requirements |
| 치환 | Do not substitute one grade for the other without engineering and purchasing approval. | |
The 1100°F boundary is not permission to select a flange from temperature alone. 설계압력, applicable code rules, 부식 환경, fabrication history, mating components and project-specific acceptance criteria still need review. Hot working or subsequent reannealing can also affect properties, so the delivered condition and traceability matter.
ASTM B564 대 ASME B16.5
ASTM B564 그리고 ASME B16.5 are complementary, not competing specifications. A usable order may identify ASTM B564 UNS N06625 등급 1 또는 등급 2 for the forged material, then ASME B16.5 for the applicable flange size, 수업, 치수, 공차, marking and testing framework.
"합금 625 flange” is therefore incomplete. Buyers should add flange type, NPS 또는 DN, 클래스 또는 PN, 깃 달기, 보어 또는 일치하는 파이프 일정, 차원 표준 및 에디션. Pressure class is not a material grade, 및 등급 1 또는 등급 2 is not a pressure rating.
What to Check on the MTC
The MTC should be checked against the purchase order and the adopted specification edition. 최소한, review:
- 물질적 정체성: ASTM B564, UNS N06625 and the ordered Grade 1 또는 등급 2 상태.
- 추적성: heat or lot reference connected to the flange marking and item documentation.
- 열처리: the reported condition and any required temperature record or statement.
- Chemistry and mechanical results: actual reported values assessed against the governing edition and purchase order.
- Required tests: only the examinations, supplementary requirements and acceptance criteria actually invoked by the order.
- Certification scope: document type, manufacturer identity, inspector or third-party endorsement when contractually required.
Producer datasheets are useful for typical alloy behaviour, but typical values are not acceptance limits for a purchase order. Acceptance should follow the cited material specification, dimensional standard and project requirements.
RFQ Checklist for UNS N06625 플랜지
| RFQ field | Information to state |
|---|---|
| 재료 | ASTM B564 UNS N06625, 등급 1 또는 등급 2, with edition if controlled by the project |
| 플랜지 정의 | 유형, NPS/DN, 클래스/PN, 깃 달기, 보어 또는 파이프 일정, 및 치수기준 |
| 서비스 | Design and operating temperature/pressure, process medium and relevant upset or cleaning conditions |
| Quality plan | MTC 유형, 임사체험, PMI, 경도, supplementary requirements and third-party inspection when required |
| 상업적인 세부사항 | 수량, 목적지, 포장, requested delivery and approved manufacturer restrictions |
자주 묻는 질문
~이다 ASTM B564 인코넬과 동일 625?
아니요. ASTM B564 is a product/material specification. UNS N06625 is the alloy designation commonly associated with Alloy 625; Inconel is a trademark. A controlled order should cite the applicable specification, UNS 번호, grade or condition and product details.
하다 ASTM B564 define flange pressure class?
아니요. 등급 1 및 등급 2 describe material conditions. Pressure class belongs to the applicable flange standard and must be evaluated with temperature, material grouping and code requirements.
Can Grade 2 replace Grade 1?
자동이 아님. Even if Grade 2 is solution annealed, substitution can affect the approved specification, design review, documentation and commercial scope. Obtain formal approval first.
Which standard applies to Alloy 625 플랜지?
ASTM B564 일반적으로 사용됩니다 UNS N06625 forged flange material. The flange also needs an applicable dimensional standard such as ASME B16.5, or another project-specified standard for its size and type.
Primary References
- ASTM B564-25 specification page — scope and Grade 1/Grade 2 service notes.
- ASME B16.5-2025 개요 — flange ratings, 치수, 공차, marking and testing scope.
- Special Metals INCONEL alloy 625 회보 — typical alloy data; not a substitute for specification acceptance limits.
합금 요청 625 플랜지 검토
필수 성적을 보내주세요, 플랜지형, 크기, 수업, 깃 달기, 구경, 수량, 서비스 조건, dimensional standard and inspection requirements. SASAFLANGE can review the item list and identify missing details before quotation.
