ASTM A182 F51 Blind RF Flange Duplex 2205 Forged, High Strength，Corrosion Resistant for Oil&Gas
Price:
NEGOTIABLE
MOQ:
1
Delivery Time:
20-80
Brand:
YUHONG
Product Description
ASTM A182 F51 Blind RF Flange Duplex 2205 Forged, High Strength,Corrosion Resistant for Oil&Gas
The ASTM A182 F51 Blind RF Flange is a solid blind flange made of duplex stainless steel, primarily used to seal pipe ends or as a maintenance access point. RF indicates that its sealing face is raised, which is the most common sealing face type. This product is manufactured strictly according to ASME B16.5 and other dimensional standards.
Blind flanges have many uses. For example, they can permanently or temporarily prevent media leakage or foreign matter ingress. Compared to one-time welded heads, they are removable, facilitating future modifications. Installing a blind flange at an adjacent flange before servicing equipment can create a safe physical barrier. They are also used during hydraulic or pneumatic pressure testing of pipelines.
| Chemical Composition | |
| Element | Composition (wt%) |
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 21.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 2.5 – 3.5 |
| Nitrogen (N) | 0.08 – 0.20 |
| Mechanical Properties | |
| Property | Value (min.) |
| Tensile Strength | ≥ 620 MPa (90 ksi) |
| Yield Strength (0.2% offset) | ≥ 450 MPa (65 ksi) |
| Elongation (in 2 in / 50 mm) | ≥ 25% |
| Reduction of Area | ≥ 45% |
| Hardness (Brinell) | ≤ 293 HBW |
| Hardness (Rockwell C) | ≤ 31 HRC |
Application
- Oil & Gas: Used for end-sealing of pipelines and isolation of high-pressure natural gas transmission systems in offshore drilling platforms, subsea pipeline systems, and acid gas (including H₂S) services.
- Chemical & Petrochemical Processing: Used for port isolation of reactors and storage tanks, and end caps of heat exchangers.
- Marine Engineering: Used for seawater pipeline systems, such as desalination plants and ship systems, to effectively resist seawater corrosion.
- Power Generation: Used for end-sealing or isolation of boiler systems and steam pipelines.
- Water Treatment and General Industry: Used for pipeline isolation in wastewater treatment systems, pressure vessels, and high-pressure storage tanks, as well as for safety isolation during equipment maintenance.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai