Hastelloy Flanges Manufacturer and Supplier In India

Hastelloy is a trademarked name for a family of high-performance, corrosion-resistant nickel-based alloys. These alloys are known for their excellent resistance to a wide range of corrosive conditions, making them highly suitable for applications in aggressive chemical processing, petrochemical, and other industries where corrosion resistance is very necessary. Hastelloy flanges are specialized flanges made from Hastelloy alloys. These flanges are manufactured to connect pipes, valves, and other equipment in a piping system while providing the same corrosion resistance as the base Hastelloy material. Hastelloy flanges are parts used in piping systems to simplify the assembly, disassembly, and maintenance of pipelines. They are normally circular discs with openings in the center to hold the pipe or valve they are attached. These flanges are made from various grades of Hastelloy alloys, such as Hastelloy C-276, Hastelloy C-22, and Hastelloy B-2, to match the specific corrosion resistance requirements of the application. Some of the advantages of hastelloy flanges are high corrosion resistance, high strength, excellent durability and low maintenance. Various applications where these flanges are used are pollution control, offshore and marine, semiconductor industry, petrochemical industry and many more.

Naysha Steel is a reputable manufacturer and supplier of Hastelloy flanges in Mumbai, India. With a commitment to excellence and customer satisfaction, Naysha Steel has established itself as a trusted provider of high-quality flanges. Their extensive range of Hastelloy flanges, manufactured using advanced technology and premium-grade materials, ensures durability and reliability in demanding industrial applications. The company's dedicated team of experts ensures strict adherence to international quality standards and timely delivery of products. Naysha Steel's comprehensive inventory and competitive pricing make them the preferred choice for industries seeking top-notch Hastelloy flanges in Mumbai, India and also stainless steel weld neck flanges manufacturer and supplier in Mumumai, India. Their unwavering focus on customer service has garnered them a solid reputation in the market.

Types of Hastelloy Flanges

Naysha Steel offers a diverse range of Hastelloy flanges, catering to various industrial applications. Their product line includes Weld Neck, Slip-On, Blind, Socket Weld, and Threaded flanges, all made from high-quality Hastelloy alloys. These flanges possess exceptional corrosion resistance, high strength, and excellent heat resistance, making them ideal for demanding environments. Naysha Steel ensures precise dimensions and strict quality control, providing reliable and durable flange solutions. With their extensive range and commitment to customer satisfaction, Naysha Steel is a trusted source for top-notch Hastelloy flanges in the industry.

Hastelloy Weld Neck Flange

Weld Neck Hastelloy flanges are commonly used in high-pressure and high-temperature applications where the risk of leakage is high. They are often used in critical applications where the integrity of the pipeline is paramount, such as in the oil and gas, chemical, and petrochemical industries.

hastelloy weld neck flange

Hastelloy Slip on Flanges

Slip-On Hastelloy flanges are typically used in applications where the pipeline needs to be disassembled and reassembled quickly. They are commonly used in chemical, petrochemical, and oil and gas industries for low-pressure applications.The Slip-On Hastelloy flange is slid over the pipe and then welded.

alloy steel slip on flanges

Hastelloy Threaded Flanges

Threaded Hastelloy flanges are easy to install and can be used in applications where disassembly and reassembly are required. They are commonly used in plumbing and heating systems, as well as in the chemical and petrochemical industries for low-pressure applications.

alloy steel threaded flanges

Hastelloy Blind Flanges

Blind Hastelloy flanges are typically used in applications where future access to the pipeline is not required, such as in dead-end piping systems or for testing and inspection purposes. They are also commonly used in the oil and gas, chemical, and petrochemical industries The Blind Hastelloy flange is bolted to the end of the pipe or fitting.

alloy steel blind flanges

Hastelloy Socket Weld Flanges

Socket Weld Hastelloy flanges are commonly used in high-pressure and high-temperature applications, as they provide a strong and reliable connection between pipes or fittings. They are often used in the chemical, petrochemical, and oil and gas industries The Socket Weld Hastelloy flange.

socket weld flanges

Hastelloy Orifice Flanges

The orifice plate is placed between two Orifice Hastelloy flanges and held in place by bolts. The flow of fluid through the pipeline is restricted by the orifice plate, which creates a pressure drop that can be measured to determine the flow rate.Orifice Hastelloy flanges are available in various sizes and pressure ratings.


Features of Hastelloy Flanges

Another key feature of Hastelloy flanges is their durability, which allows them to withstand the rigors of industrial applications and ensure long-lasting performance. They are also easy to install and can be easily aligned with pipes and fittings, making installation quick and hassle-free. Hastelloy flanges are highly versatile and available in a range of sizes, pressure ratings, and types, making them suitable for a wide range of industrial applications. Additionally, due to their excellent corrosion resistance and durability.

Size of Hastelloy Flanges

Nominal Size Outside Diameter
Min. Thickness
RF Dia.
No. of Bolt Holes Diameter of Holes Bolt Circle
SO Bore ID
WN Bore ID
Dia. Hub Base
Dia. of Hub Top
12 3.50 0.38 1.38 4 0.62 2.38 0.88 0.62 1.19 0.84 0.56 1.81
34 3.88 0.44 1.69 4 0.62 2.75 1.09 0.82 1.50 1.05 0.56 2.00
1 4.25 0.50 2.00 4 0.62 3.12 1.36 1.05 1.94 1.32 0.62 2.12
114 4.62 0.56 2.50 4 0.62 3.50 1.70 1.38 2.31 1.66 0.75 2.19
112 5.00 0.62 2.88 4 0.62 3.88 1.95 1.61 2.56 1.90 0.81 2.38
2 6.00 0.69 3.62 4 0.75 4.75 2.44 2.07 3.06 2.38 0.94 2.44
212 7.00 0.81 4.12 4 0.75 5.50 2.94 2.47 3.56 2.88 1.06 2.69
3 7.50 0.88 5.00 4 0.75 6.00 3.57 3.07 4.25 3.50 1.12 2.69
312 8.50 0.88 5.50 8 0.75 7.00 4.07 3.55 4.81 4.00 1.19 2.75
4 9.00 0.88 6.19 8 0.75 7.50 4.57 4.03 5.31 4.50 1.25 2.94
5 10.00 0.88 7.31 8 0.88 8.50 5.66 5.05 6.44 5.56 1.38 3.44
6 11.00 0.94 8.50 8 0.88 9.50 6.72 6.07 7.56 6.63 1.50 3.44
8 13.50 1.06 10.62 8 0.88 11.75 8.72 7.98 9.69 8.63 1.69 3.94
10 16.00 1.12 12.75 12 1.00 14.25 10.88 10.02 12.00 10.75 1.88 3.94
12 19.00 1.19 15.00 12 1.00 17.00 12.88 12.00 14.38 12.75 2.12 4.44
14 21.00 1.31 16.25 12 1.12 18.75 14.14 13.25 15.75 14.00 2.19 4.94
16 23.50 1.38 18.50 16 1.12 21.25 16.16 15.25 18.00 16.00 2.44 4.94
18 25.00 1.50 21.00 16 1.25 22.75 18.18 17.25 19.88 18.00 2.62 5.44
20 27.50 1.62 23.00 20 1.25 25.00 20.20 19.25 22.00 20.00 2.81 5.62
22 29.50 1.75 25.25 20 1.38 27.25 22.22 21.25 24.25 22.00 3.07 5.82
24 32.00 1.81 27.25 20 1.38 29.50 24.25 23.25 26.12 24.00 3.19 5.94

Uses of Hastelloy Flanges

  • Hastelloy Flanges are commonly used in the chemical processing industry due to their excellent corrosion resistance, high-temperature resistance, and durability.
  • Hastelloy Flanges are frequently used in oil and gas production, where they can withstand the harsh and corrosive conditions of drilling, extraction, and transportation.
  • Hastelloy Flanges are used in aerospace applications due to their resistance to high temperatures and ability to withstand extreme stress and pressure.
  • Hastelloy Flanges are used in power generation applications such as nuclear reactors, steam turbines, and boilers, where they can withstand high temperatures and pressure.
  • Hastelloy Flanges are used in the food and beverage processing industry due to their resistance to corrosion and contamination.

Quality of Hastelloy Flange

To ensure the highest quality of Hastelloy Flanges, manufacturers follow strict quality control measures during the production process. This includes using high-quality raw materials, such as certified alloys, and employing advanced manufacturing techniques, such as precision forging, heat treatment, and machining. In addition, Hastelloy Flanges undergo rigorous testing and inspection procedures to ensure their quality and performance. These include non-destructive testing methods, such as ultrasonic testing, magnetic particle testing.

Hastelloy Flanges Manufacturer : Grades & Classes

  • Hastelloy C276
  • Hastelloy C22
  • Hastelloy B2
  • Hastelloy X
  • Hastelloy G-30
  • Hastelloy G-35
  • Hastelloy N
  • Hastelloy W
  • Hastelloy B3

Hastelloy Flanges Specifications

Specification Of : Hastelloy Flanges
Size Details (1/2") To (48")
JIS 5K, 10K, 40K, 16K 20K 30K, 63K
Low Temperature Ratings Above -29 ° Celsius (−20°F)
High Temperature Ratings Above 200° Celsius (400°F) For 150 Class Or Above 400° Celsius (750°F)
Minimum Pressure 150# To 2500#
Flange Face Type FF, Raised Face, Large Male-Female And Small Male-Female, Lap-Joint Face, RTJ, Large Tongue & Groove And Small Tongue Groove.
Top Six Type Of Flange Threaded Flange, Lap Joint Flange, Socket-Weld Flange, Blind Flange, Slip-On Flange, Weld Neck Flange
Standard Materials Cast Iron, Duplex Steel & Super Duplex Steel, Inconel, Stainless Steel, Wrought Iron, Alloy Steel, Mild Steel, Hastelloy, Carbon Steel, Copper Nickel.
Thickness Length NPS ≤ 18
Bore Diameter Formula NPS ≤ 10
Size (1/2") To (48")
ASME B16.5 Standards EN1092, UNI, EN-1092, ANSI/ASME B16.5, API7S-43, API605, BS4504, API7S-15, API, ISO, MSS S44, ASME B16.48, AWWA C207, IS 2062, ISO70051, ASME B16.36, DIN, BS1560-3.1, B16.47 Series A & B.
Manufacturing Process Forged/ Machined/ Heat Treated
Other Type Of Flange Forged/ Plate/ Threaded
Application Oil And Gas Industry
Power Plants Industry
Food Processing And Manufacturing
Waterworks Systems
Fossil Fuel Power Plants
Nuclear Power Application
Municipal Pipe Systems

Please find below our manufacturing and Sales network below: (Contact us for detailed information for your nearest branches)

  • Hastelloy Flanges manufacturer and contractor in Hyderabad
  • Hastelloy Flanges manufacturer and supplier in Chennai
  • Hastelloy Flanges manufacturer and stockists in Pune
  • Hastelloy Flanges manufacturer and dealer in Faridabad
  • Hastelloy Flanges manufacturer and warehousing in Chandigarh
  • Hastelloy Flanges manufacturer and wholesalor in Delhi
  • Hastelloy Flanges manufacturer and trader in Coimbatore
  • Hastelloy Flanges manufacturer and stockholder in Bangalore
Industries served by Hastelloy Flanges

In the oil and gas industry, blind Alloy Steel flanges are used in pipelines, storage tanks, and offshore platforms. They are employed for closing off openings during maintenance, repair, or when a branch connection is not required. Petrochemical plants utilize blind Alloy Steel flanges in equipment such as reactors, distillation columns, and storage vessels. These flanges provide a secure and leak-proof seal when closing off unused openings or isolating sections of the process.

oil gas manufacturer
Oil and Gas Industries

The oil and gas industry includes a wide range of from drilling and production to refining and marketing. Some of the major players in this include oil and gas companies, service providers, equipment.

petroleum manufacturer supplier
Petroleum Industries

In the drilling process, stainless steel is used to make drill bits, pipes, and other equipment that must withstand high pressures and temperatures. Stainless steel is also used to make pumps, valves, and fittings for the transportation.

chemical flanges
Shipbuilding in India

In storage applications, stainless steel is used to make tanks and containers that can safely store corrosive and hazardous chemicals. It is also used in piping systems for chemical transfer and distribution chemical industry.

Marking & Pricing

Products are packaged to ensure that there is no damage during of goods transport. In case of exports, standard export packaging is done with utmost care in wooden covering or boxing. All products are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make customized marking on our products.

Quality Assurance

At Naysha Steel, all fittings and flanges are subject to strict inspection at each and every stage of the production process, from starting material purchasing to product dispatch. They are visually examined for compliance to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality compliance of products.

Test Certificates: Manufacturer Test Certificate as per EN 10204 / 3.1B Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report