Alloy Steel Flanges: ASTM A182 F5, F9, F11, F22, F91 Manufacturers, Suppliers, and Exporters in India
ASTM A182 F5 Flange, Alloy Steel F9 Flanges, Chrome Moly F11 Flanges, ASTM A182 F22 Flanges, F91 High Strength Alloy Steel Flanges, ASTM A182 Alloy Steel Flanges, Alloy Steel Flange Manufacturer in India
Mcneil Instruments is a leading manufacturer, supplier, and exporter of ASTM A182 F5, F9, F11, F22, and F91 alloy steel flanges. These flanges are known for their excellent strength, heat resistance, and corrosion resistance, making them ideal for high-temperature and high-pressure applications in refineries, power plants, and petrochemical industries.
Our ASTM A182 F5 Flanges, F9 Alloy Steel Flanges, and F11 Alloy Steel Flanges are precisely engineered using premium quality raw materials. These alloy steel flanges comply with international standards and are widely demanded across various industries. We offer a wide range of Alloy Steel Flanges including Weld Neck, Blind, Slip-On, Socket Weld, and Threaded flanges.
We specialize in providing ASTM A182 F22 Chrome Moly Flanges and F91 High Temperature Flanges that are used in critical service applications due to their exceptional performance under stress. These flanges are manufactured to meet the requirements of ANSI/ASME B16.5 and B16.47 standards.
Our flanges are trusted and approved by major industry leaders and global clients. We proudly supply KOC Approved Flanges, Saudi Aramco Approved Flanges, Takreer Approved Flanges, and Adnoc Approved Flanges for projects in the Middle East. Additionally, our range includes BP Approved Flanges, PDO Approved Flanges, and Technip Approved Flanges, ensuring compliance with stringent quality norms.
As a reputed Alloy Steel Flange Manufacturer in India, Mcneil Instruments supplies A182 Grade F Flanges to both domestic and international clients. Our flanges are suitable for various applications including boiler manufacturing, steam lines, power generation, and heat exchanger systems.
We are also recognized as exporters of Sabic Approved Flanges, Petro Rabigh Approved Flanges, and Saudi Electric Company Approved Flanges. These approvals authenticate the durability, pressure-handling capacity, and material integrity of our flanges under demanding environments.
With a commitment to precision engineering, we manufacture KNPC Approved Flanges, Lamprell Approved Flanges, and QatarGas Approved Flanges for various offshore and onshore oil & gas applications. We also cater to infrastructure and marine projects with our Qatar Petroleum Approved Flanges, Gpic Approved Flanges, Dolphin Approved Flanges, and Shell Approved Flanges.
F5 Flanges
Comprising 5% chromium and 0.5% molybdenum, F5 flanges offer excellent resistance to oxidation and high-temperature corrosion, making them ideal for heat exchangers and refineries.
F9 Flanges
With 9% chromium and 1% molybdenum, F9 flanges provide enhanced strength and creep resistance, suitable for boilers, petrochemical plants, and thermal power stations..
F11 Flanges
These low-alloy steel flanges exhibit good tensile strength, formability, and corrosion resistance, making them apt for high-temperature services in power plants and industrial pressure vessels.
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F22 Flanges
Offering a balanced composition of chromium and molybdenum, F22 flanges ensure durability and thermal stability, commonly used in steam pipelines, heat exchangers, and power station applications..
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F91 Flanges
Advanced ferritic alloy steel flanges with 9% chromium and 1% molybdenum-vanadium, F91 flanges are known for exceptional creep strength and thermal fatigue resistance, preferred in superheated steam applications and nuclear plants..
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Technical Specifications
Chemical Composition (%):
| Grade | C | Mn | P (max) | S (max) | Si | Cr | Mo |
| F5 | 0.15 max | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 4.00–6.00 | 0.45–0.65 |
| F9 | 0.15 max | 0.30–0.60 | 0.025 | 0.025 | 0.25–1.00 | 8.00–10.00 | 0.90–1.10 |
| F11 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 1.00–1.50 | 0.44–0.65 |
| F22 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 1.90–2.60 | 0.87–1.13 |
| F91 | 0.08–0.12 | 0.30–0.60 | 0.020 | 0.010 | 0.20–0.50 | 8.00–9.50 | 0.85–1.05 |
Mechanical Properties:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| F5 | ≥ 415 | ≥ 205 | ≥ 22 | ≤ 187 |
| F9 | ≥ 585 | ≥ 275 | ≥ 30 | ≤ 250 |
| F11 | ≥ 415 | ≥ 205 | ≥ 22 | ≤ 163 |
| F22 | ≥ 415 | ≥ 205 | ≥ 22 | ≤ 163 |
| F91 | 585–760 | 415–585 | ≥ 20 | ≤ 250 |
Why Choose Mcneil Instruments?
- ISO Certified manufacturer
- Global supply chain and prompt delivery
- Advanced quality testing procedures
- Customized stock & cutting services
- Competitive pricing for bulk orders
Export & Supply Locations
We proudly supply our approved flanges across:
- Middle East: Saudi Arabia, Qatar, UAE, Kuwait
- Asia: India, Singapore, Indonesia
- Europe: Germany, Italy, France
- Africa: Egypt, Nigeria, South Africa
Our products are widely recognized as KOC Approved Flanges, Qatar Gas Approved Flanges, Shell Approved Flanges, and Technip Approved Flanges in major industrial sectors.
Call to Action
Looking for premium alloy steel flanges in grades F5, F9, F11, F22, or F91? Contact Mcneil Instruments today for best-in-class pricing, immediate stock availability, and global shipping.
Our diverse range includes:
- ASTM A182 F5 Flanges
- ASTM A182 F9 Flanges
- ASTM A182 F11 Flanges
- ASTM A182 F22 Flanges
- ASTM A182 F91 Flanges
- Alloy Steel Slip-On Flanges
- Alloy Steel Weld Neck Flanges
- Alloy Steel Blind Flanges
- Alloy Steel Threaded Flanges
- High Pressure Alloy Flanges
We provide Alloy Steel Flanges that meet the specific needs of refineries, power plants, and chemical industries. Mcneil Instruments is known for timely delivery, competitive pricing, and unmatched product quality.
Applications
- Power Generation Plants
- Petrochemical Refineries
- Boiler Manufacturing
- Heat Exchangers & Pressure Vessels
- Nuclear & Thermal Power Stations
Stock Availability
As a top ASTM A182 F11 Flange Manufacturer and F22 Flange Stockist, we maintain ready stock in various sizes and pressure ratings.
- Grades: F5, F9, F11, F22, F91
- Sizes: 1/2″ to 48″
- Pressure Ratings: Class 150 to 2500
- Types: Weld Neck, Slip-On, Socket Weld, Blind, Threaded, Lap Joint
FAQs
Can Mcneil Instruments export to the Middle East and Europe?
Yes, we export globally with a presence in over 30+ countries.
Which industries use ASTM A182 F-grade flanges?
Power generation, petrochemicals, oil & gas, and boiler manufacturing.
Are these flanges suitable for high-pressure and high-temperature conditions?
Yes. Their chrome-moly composition makes them ideal for elevated conditions.
Do you offer third-party inspection and testing certificates?
Absolutely. We provide test reports and third-party inspection approvals.
Who is the top manufacturer and supplier of ASTM A182 F-grade alloy steel flanges?
Mcneil Instruments is a trusted manufacturer, supplier, and exporter of ASTM A182 F5, F9, F11, F22, and F91 flanges, known for quality and global delivery.