Alloy Steel Fittings: ASTM A182 F5, F9, F11, F22, F91 Manufacturers, Suppliers, and Exporters in India
ASTM A234 WP5 Buttweld Fittings, ASTM A234 WP9 Elbows, ASTM A234 WP11 Tees, ASTM A234 WP22 Reducers, ASTM A234 WP91 Caps, ASTM A182 Fittings, Chrome Moly Alloy Steel Fittings, Alloy Steel Fittings Manufacturer in India
Mcneil Instruments is a trusted manufacturer, supplier, and exporter of ASTM A182 F5, F9, F11, F22, and F91 forged fittings and ASTM A234 WP5, WP9, WP11, WP22, and WP91 buttweld fittings. These chrome moly alloy steel fittings are widely used in high-temperature and high-pressure applications such as refineries, power plants, thermal plants, and petrochemical industries due to their excellent strength, stress resistance, and corrosion resistance.
Our range includes ASTM A234 WP5 Elbows, F9 Alloy Steel Tees, and WP11 Reducers, all engineered with precision and crafted from high-grade materials that meet global quality standards. We offer an extensive inventory of Alloy Steel Forged Fittings like Socket Weld and Threaded fittings, and Buttweld Pipe Fittings like Elbows, Tees, Caps, Reducers, and Stub Ends.
Mcneil Instruments specializes in manufacturing F22 High-Pressure Fittings and F91 Creep-Resistant Fittings, built to perform reliably in the most demanding environments. These fittings are compliant with ASME B16.9, B16.11, and MSS-SP standards, ensuring superior quality and dimensional accuracy.
Our fittings are widely approved and used in projects globally. We proudly offer KOC Approved Fittings, Saudi Aramco Approved Fittings, ADNOC Approved Fittings, PDO Approved Fittings, Takreer Approved Fittings, Qatar Gas Approved Fittings, Dolphin Energy Approved Fittings, Shell Approved Fittings, and Qatar Petroleum Approved Fittings. In addition, we supply KNPC Approved Fittings, IBR Approved Butt Weld Fittings, IBR Approved Forged Fittings, WRAS Approved Fittings, FM Approved Fittings, PED Approved Fittings, and DNV Approved Fittings, establishing our brand as a reliable global supplier.
As a reputed Alloy Steel Fittings Manufacturer in India, Mcneil Instruments delivers fittings that are robust, leak-proof, and suitable for boiler systems, steam lines, chemical processes, and high-temperature pipelines across various sectors. We continue to serve clients with high-performance fittings approved by leading EPC contractors and end-users worldwide.
Grades We Offer – Alloy Steel Fittings
Mcneil Instruments offers a wide range of alloy steel forged and butt-weld fittings manufactured from top-quality grades under ASTM A182 and ASTM A234 specifications. These grades are engineered to perform in high-pressure, high-temperature environments such as oil refineries, power plants, petrochemical industries, and thermal plants.
ASTM A182 Grades (Forged Fittings)
- F5 Forged Fittings: ASTM A182 F5 alloy steel fittings contain chromium and molybdenum, offering high resistance to oxidation and thermal stress. They are ideal for steam pipelines and high-temperature environments.
- F9 Forged Fittings: Designed for superior creep resistance and mechanical strength, ASTM A182 F9 fittings are used in high-pressure service lines. These fittings are perfect for heat exchangers and refinery equipment.
- F11 Forged Fittings: Known for their weldability and moderate strength, ASTM A182 F11 fittings are commonly used in power generation and chemical plants. They offer good corrosion resistance and thermal stability.
- F22 Forged Fittings: ASTM A182 F22 is a chromium-molybdenum alloy offering exceptional creep resistance and stability at elevated temperatures. These fittings are suited for harsh service conditions.
- F91 Forged Fittings: A high-strength alloy designed for extreme service conditions, ASTM A182 F91 forged fittings are perfect for power and chemical processing industries.
ASTM A234 Grades (Butt-Weld Fittings)
- WP5 Butt-Weld Fittings: ASTM A234 WP5 fittings are designed for moderate to high-temperature services and offer excellent formability and corrosion resistance.
- WP9 Butt-Weld Fittings: These alloy steel fittings offer excellent resistance to oxidation and scaling. ASTM A234 WP9 is suitable for elevated temperature environments and corrosive media.
- WP11 Butt-Weld Fittings: WP11 grade fittings offer moderate tensile strength and are widely used in power plants and petrochemical industries.
- WP22 Butt-Weld Fittings: ASTM A234 WP22 fittings provide enhanced mechanical properties and high resistance to thermal fatigue. These are used in superheaters and heat recovery systems.
- WP91 Butt-Weld Fittings: Known for excellent thermal and pressure resistance, WP91 fittings are used in the most demanding applications such as nuclear plants and thermal stations.
Technical Specifications
Chemical Composition (%):
| Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Cr (%) | Mo (%) | Others |
| F5 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.50 | 4.00–6.00 | 0.44–0.65 | – |
| F9 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.50–1.00 | 8.00–10.00 | 0.90–1.10 | – |
| F11 | 0.05–0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.50–1.00 | 1.00–1.50 | 0.44–0.65 | – |
| F22 | 0.05–0.15 | 0.30–0.60 | 0.040 | 0.040 | 0.50–1.00 | 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 | V, N, Nb |
Mechanical Properties:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| F5 | ≥ 485 | ≥ 275 | ≥ 20 | 143–217 |
| F9 | ≥ 585 | ≥ 380 | ≥ 20 | 179–217 |
| F11 | ≥ 415 | ≥ 205 | ≥ 20 | 121–174 |
| F22 | ≥ 415 | ≥ 205 | ≥ 20 | ≤ 170 |
| F91 | 585–760 | 415–585 | ≥ 20 | ≤ 250 |
Our Diverse Range Includes
- Forged Fittings: Elbows (45°, 90°), Tees, Couplings, Unions, Caps, Crosses, Reducers
- Butt-Weld Fittings: Elbows, Tees, Reducers, Caps, Crosses
- Types: Socket Weld, Threaded, Seamless, Welded
- Standards: ASME B16.9, B16.11, MSS SP-75
Stock Availability
We maintain a comprehensive inventory of alloy steel fittings in various sizes and pressure ratings:
- Sizes: 1/2″ to 48″
- Pressure Ratings: Class 150 to 2500
Standards: ASME, ANSI, DIN, EN
Why Choose Mcneil Instruments?
- Quality Assurance: ISO-certified manufacturing processes
- Global Approvals: KOC, Saudi Aramco, ADNOC, PDO, Takreer, Qatar Gas, Dolphin Energy, Shell, Qatar Petroleum, KNPC
- Comprehensive Range: Wide variety of grades and sizes
- Timely Delivery: Efficient logistics and supply chain management
- Competitive Pricing: Cost-effective solutions without compromising quality
Export & Supply Locations
We export our alloy steel fittings to various countries, including
- Middle East: Saudi Arabia, UAE, Qatar, Kuwait, Oman
- Asia: India, Singapore, Malaysia, Indonesia
- Europe: Germany, Italy, France, UK
- Africa: South Africa, Egypt, Nigeria
- Americas: USA, Canada, Brazil, Mexico
Call to Action
For premium quality alloy steel fittings in grades ASTM A182 and ASTM A234, contact Mcneil Instruments today. Our expert team is ready to assist you with your requirements and provide the best solutions for your projects.
FAQs
What are the applications of ASTM A182 and A234 fittings?
These fittings are used in high-temperature and high-pressure systems such as power plants, refineries, petrochemical plants, and oil & gas industries.
Are your fittings compliant with international standards?
Absolutely, our fittings conform to ASME, ANSI, DIN, and EN standards.
Can you supply fittings with specific approvals?
Yes, we supply fittings approved by KOC, Saudi Aramco, ADNOC, PDO, Takreer, Qatar Gas, Dolphin Energy, Shell, Qatar Petroleum, and KNPC.