Metinox Overseas Hastelloy Flanges are designed to be used in industries or industries which have the most corrosive and high temperatures with chemical aggression. Hastelloy flanges are known to be outstandingly resistant to oxidation, pitting, crevice corrosion, and stress corrosion cracking to offer long life in the systems where conventional alloys fail. Their high mechanical capabilities and stability render them to be perfect in sensitive piping and process operational applications where foolproof execution is essential.
Our Hastelloy Flanges are produced in international grades like Hastelloy C22, C276, X, B2 and B3 and meet major standards available globally like ANSI B16.5, ASME B16.47, ASTM B564, ASTM B366, API, DIN,BS and MSS-SP44. We have a complete variety of designs such as Slip-On, Weld Neck, Blind, Threaded, Socket Weld, and Lap Joint flanges that come in all classes of pressure between 150 LBS to 2500 LBS to meet the varying industrial system requirements.
Every flange is manufactured with a high level of quality consideration that involves the application of sophisticated manufacturing technology to achieve precise dimensions, uniformity in terms of thickness as well as high degree of mechanical performance. Metinox Overseas has a solid supply chain with high reliability that serves chemical processing, oil and gas, petrochemical, power generation, marine engineering, pharmaceutical manufacturing, pulp and paper, and heavy engineering with reliable and durable solutions to critical infrastructure development.
Table of Contents
- Specifications of Hastelloy Flanges
- ASTM B564 Hastelloy Flanges Chemical Composition
- Mechanical properties of ASTM B564 Hastelloy Flanges
- Equivalent Standards & Material Grades of Hastelloy Flanges
- Hastelloy C276 Flange Pressure Ratings Chart
- Hastelloy C276 Flange Dimension Standards and Size Ranges
- Types of Hastelloy Flanges
- Industrial Applications of Hastelloy Flanges
- Hastelloy Flanges Manufacturers & Suppliers in India
- Worldwide Export of Hastelloy Flanges
Hastelloy Flanges by Grade
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Hastelloy B2 Flanges
 NICKEL-MOLYBDENUM ALLOY FLANGES MANUFACTURER & SUPPLIER.webp)
Hastelloy B3 Flanges
 NICKEL-CHROMIUM-MOLYBDENUM-TUNGSTEN ALLOY FLANGES MANUFACTURER & SUPPLIER.webp)
Hastelloy C22 Flanges
 NICKEL-CHROMIUM-MOLYBDENUM-TUNGSTEN ALLOY FLANGES MANUFACTURER & SUPPLIER.webp)
Hastelloy C276 Flanges
 NICKEL-CHROMIUM-MOLYBDENUM ALLOY FLANGES MANUFACTURER & SUPPLIER.webp)
Hastelloy C4 Flanges
Hastelloy G30 Flanges
 NICKEL-CHROMIUM-IRON-MOLYBDENUM ALLOY FLANGES MANUFACTURER & SUPPLIER.webp)
Hastelloy X Flanges
 NICKEL-CHROMIUM-MOLYBDENUM ALLOY FLANGES MANUFACTURER & SUPPLIER.webp)
Hastelloy S Flanges
Specifications of Hastelloy Flanges
The table given below provides information about the specifications of Hastelloy flanges.
| Specification Category | Consolidated Technical Details |
| Material Specifications | ASTM B564 / ASME SB564 |
| Standard | ANSI, ASME, BS, DIN, EN Flanges, etc. |
| Available Grades | Hastelloy C276, C22, C4, C2000, B2, B3, X |
| Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size Range | 1/2? NB to 60? NB |
| Class / Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500#; PN6, PN10, PN16, PN25, PN40, PN64, etc. |
| Flange Face Types | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
ASTM B564 Hastelloy Flanges Chemical Composition
The hastelloy flanges are made with a mix of different metals, and the information about this is given below.
| Grade | Ni | C | Mn | Si | S | Co | Cr | Fe | Mo | P |
| C276 | 50.99 min* | 0.010 max | 1.00 max | 0.08 max | 0.03 max | 2.50 max | 14.50 - 16.50 | 4.00 - 7.00 | 15.00 - 17.00 | 0.04 max |
| C22 | 50.015 min* | 0.010 max | 0.50 max | 0.08 max | 0.02 max | 2.50 max | 20.00 - 22.50 | 2.00 - 6.00 | 12.50 - 14.50 | 0.02 max |
| B2 | Balance | 0.02 max | 1.0 max | 0.1 max | 0.03 max | 1.0 max | 1.0 max | 2.0 max | 26.0 - 30.0 | 0.04 max |
Mechanical properties of ASTM B564 Hastelloy Flanges
The hastelloy flanges come with high tensile strength and many other properties, which are given below.
| Grades | Tensile Strength | Yield Strength (0.2% Offset) | Density | Melting Point | Elongation |
| Hastelloy C276 | 115,000 Psi / 790 MPa | 52,000 Psi / 355 MPa | 8.89 g/cm- | 1370 -C (2500 -F) | 40% |
| Hastelloy C22 | 100,000 Psi / 690 MPa | 45,000 Psi / 310 MPa | 8.69 g/cm- | 1399 -C (2550 -F) | 45% |
| Hastelloy B2 | 110,000 Psi / 760 MPa | 51,000 Psi / 350 MPa | 9.2 g/cm- | 1370 -C (2500 -F) | 40% |
Equivalent Standards & Material Grades of Hastelloy Flanges
The hastelloy Flanges are comes in different international standards, and some of them are given below.
| Grade | EN Standard | UNS | WERKSTOFF NR. | JIS | GOST/OR |
| Hastelloy C276 | NiMo16Cr15W | N10276 | 2.4819 | NW 0276 | ??65??? / ??760 |
| Hastelloy C22 | NiCr21Mo14W | N06022 | 2.4602 | NW 6022 | - |
| Hastelloy B2 | - | N10665 | 2.4617 | - | - |
Hastelloy C276 Flange Pressure Ratings Chart
The pressure chart given below for Hastelloy flanges helps you to choose the right material for your applications.
| Temperature (-F) | 150# | 300# | 400# | 600# | 900# | 1500# | 2500# |
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 650 | 125 | 430 | 575 | 860 | 1290 | 2150 | 3580 |
| 700 | 110 | 425 | 565 | 850 | 1275 | 2125 | 3540 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 800 | 80 | 405 | 540 | 805 | 1210 | 2015 | 3360 |
| 850 | 65 | 395 | 530 | 790 | 1190 | 1980 | 3300 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 950 | 35 | 380 | 510 | 765 | 1145 | 1910 | 3180 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
| 1050 | 20 | 310 | 410 | 615 | 925 | 1545 | 2570 |
| 1100 | 20 | 255 | 345 | 515 | 770 | 1285 | 2145 |
| 1150 | 20 | 200 | 265 | 400 | 595 | 995 | 1655 |
| 1200 | 20 | 155 | 205 | 310 | 465 | 770 | 1285 |
| 1250 | 20 | 115 | 150 | 225 | 340 | 565 | 945 |
| 1300 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| 1350 | 20 | 60 | 80 | 125 | 185 | 310 | 515 |
| 1400 | 20 | 50 | 65 | 95 | 145 | 240 | 400 |
| 1450 | 15 | 35 | 45 | 70 | 105 | 170 | 285 |
| 1500 | 10 | 25 | 35 | 55 | 80 | 135 | 230 |
Hastelloy C276 Flange Dimension Standards and Size Ranges
The different sizes and dimensions of the Hastelloy C276 flanges are given below.
| Dimension Standard | Rating | Size Range |
| DIN Flanges | PN6 to PN 160 | DN10 to DN3600 |
| ASME B16.47 / API 605 Flanges | - | 26" to 60" |
| ASME / ANSI B16.5 Flanges | Class 150 to 2500 Lbs | 1/2" to 24" |
| ASME B16.48 / API 590 Flanges | Class 150 to 2500 Lbs | 1/2" to 24" |
| BS 3293 Flanges | Class 150 to 600 Lbs | 26" to 48" |
| MSS-SP-44 Flanges | Class 150 to 900 Lbs | 12" to 60" |
| API 6A Flanges | 2000 Psi to 20000 Psi | 2 1/16" to 30" |
Types of Hastelloy Flanges
Metinox Overseas is a company producing a variety of Hastelloy flanges with extreme chemical, thermal, and pressure requirements. These flanges are designed with high rates of resistance to corrosion, oxidation, and chemical attack, making them suitable in the case of aggressive industrial environments where the material performance is a major concern. We have a Hastelloy flange selection consisting of:
Weld Neck Flanges
They have a reinforced tapered neck to give it a better load-bearing capacity and stress control. The preference of such flanges is in high-pressure and high-temperature pipelines of chemical processing, petrochemical plants, and energy.
Slip-On Flanges
These types of flanges are simple to install and made of a simple design that slides over the pipe and is welded to secure it. Applicable to moderate pressure systems with a high value on rapid assembly and alignment.
Blind Flanges
Solid pipes are used to seal the ends of the pipelines or equipment nozzles, which makes the system absolutely isolated. Typically applied in shutdown points, in maintenance operations and pressure testing applications.
Socket Weld Flanges
These flanges are made with high-pressure, small-diameter pipe systems that offer very strong and leak-resistant joints by means of socket welding.
Threaded Flanges
Since all systems with a restricted or prohibited area of welding can be connected with these flanges mechanically, using internal threading, they are applicable to hazardous or temporary installations.
Lap Joint Flanges
These flanges are commonly used in stub ends; they can easily be rotated and aligned, making them suitable for piping systems that have to be dismantled, inspected, and maintained regularly.
Orifice Flanges
These flanges are specially made to fit into flow measurement and control systems and are employed in processes that need a high level of fluid flow accuracy in process industries.
Reducing Flanges
Reducing flanges are installed to unite pipes of varying diameter and have been applied where space and flow transitions have to be handled effectively.
Long Weld Neck Flanges
These flanges are made to meet the needs of critical service lines, and they offer maximum strength and stress distribution when used in high pressure and high temperature applications with corrosive environments.
Application Uses of Hastelloy Flanges
Hastelloy flanges are common in industrial settings when there is a need of high level of corrosion resistance, chemical stability, as well as thermal dependability. They are widely used in chemical manufacturing plants, petrochemical refiners, oil and gas plants, power generation plants, and pollution control systems, in which acids, alkalis, and high-temperature fluids are frequent. Hastelloy flanges are also of paramount importance in the fertilizer plants, pulp and paper, pharmaceutical production, wastewater treatment facilities, and desalination projects, where material degradation is of significant concern. Hastelloy flanges are a reliable option because of their structural integrity properties in high-pressure and high-temperature, as well as chemically aggressive conditions that offer a long-term operation of the modern industrial piping systems and critical infrastructure systems.
Chemical Processing
Handling aggressive acids, alkalis, and corrosive chemicals in reactor vessels and process piping.
Petrochemical
Refinery systems, catalytic crackers, and high-temperature corrosive environments.
Oil & Gas
Sour gas service, offshore platforms, and drilling equipment in corrosive conditions.
Power Generation
Flue gas desulfurization systems, scrubbers, and high-temperature steam systems.
Pharmaceutical
Process equipment requiring ultra-high purity and resistance to cleaning chemicals.
Pollution Control
Wastewater treatment, desalination plants, and environmental control systems.
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Hastelloy Flanges Manufacturers & Suppliers in India
The Metinox overseas is the major manufacturer and supplier of hastelloy flanges all over the india and most of the cities that are given below.
Manufacturers of Hastelloy Flanges in top cities of India
| Bengaluru | Mumbai | Chennai | Hyderabad |
| Kolkata | Pune | New Delhi | Ahmedabad |
| Jaipur | Surat | Salem | Gandhinagar |
| Bhiwandi | Tiruppur | Sivakasi | Jamnagar |
| Thiruvananthapuram | Rajahmundry | Bhubaneswar | Vijayawada |
| Firozabad | Bokaro Steel City | Rajkot | Bharuch |
| Raipur | Cochin | Ludhiana | Panipat |
| Durgapur | Peenya | Pimpri-Chinchwad | Channapatna |
| Kharagpur | Nashik | Bareilly | Varanasi |
| Haldia | Rourkela | Moradabad | Indore |
| Visakhapatnam | Trivandrum | Pithampur | Dibrugarh |
| Angul | Gwalior | Coimbatore | Kannur |
| Nagpur | Vadodara | Rudrapur | Noida |
| Agra | Bhagalpur | Jamshedpur | Bhilai |
| Lucknow | Kanpur | Thane | Bhopal |
| Durg-Bhilai Nagar | Jabalpur | Ghaziabad |
Worldwide Export of Hastelloy Flanges
We ship our many products, including Hastelloy Flanges over 30+ countries, and some of the major ones are listed below.
Countries We Export Hastelloy Flanges
| Saudi Arabia | Oman | Kuwait | Bahrain |
| Qatar | UAE | Iran | Netherlands |
| Nigeria | Mexico | Canada | Bangladesh |
| United States | South Africa | Malaysia | Brazil |
| Singapore | Sri Lanka | Australia | Turkey |
| Venezuela | United Kingdom | Germany | New Zealand |
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