Hastelloy Blind, Slip On & Weld Neck Flanges Manufacturer in India
Hastelloy Flanges are high-performance nickel-molybdenum-chromium alloy pipe flanges designed for highly corrosive and high-temperature environments. These flanges offer exceptional resistance to oxidizing and reducing chemicals, chlorides, acids, and seawater applications. As a leading nickel alloy hastelloy flanges manufacturer in India, we supply ASTM B564 Hastelloy flanges in various grades including Hastelloy C276, C22, C2000, B2, X, and C4 for industries such as chemical processing, oil & gas, power generation, marine, and pharmaceuticals.
What Are Hastelloy Flanges?
Hastelloy is a family of corrosion-resistant superalloys primarily composed of nickel, molybdenum, and chromium. These alloys are designed to withstand the harshest environments, making them ideal for use in industries where resistance to corrosion and extreme temperatures is critical. Hastelloy flanges are integral components that connect pipes, valves, pumps, and other equipment, ensuring the smooth flow of fluids while maintaining the integrity of the system under severe conditions.
We offer a wide range of Hastelloy flanges that cater to the diverse needs of our clients. Our products are known for their exceptional quality, durability, and ability to perform in the most demanding environments.
The unique composition of Hastelloy provides:
- Excellent resistance to pitting corrosion
- Superior protection against crevice corrosion
- Outstanding resistance to stress corrosion cracking
- High-temperature strength
- Long-term durability in chemical environments
- Resistance to sulfuric, hydrochloric, phosphoric, and nitric acids
These properties make Hastelloy flanges a preferred choice across numerous demanding industries worldwide.

Reliable Hastelloy Pipe Flange Supplier for Critical Industrial Applications
If an industrial pipe is exposed to aggressive or extreme working conditions, regular stainless steel flanges can be corroded and wear out. Hastelloy flanges offer a solution for applications that deal with very aggressive chemicals or high operating temperatures. As a Hastelloy pipe flange supplier that’s dedicated to the highest standards, we have experience producing exact and quality controlled flanges that meet industry requirements and project specifications. We have all kinds of flanges that work with high pressures and have to perform in very corrosive and extremely hot conditions. Standard and custom dimension flange options are available and they will work perfectly in applications requiring a reliable and leak-proof operation and guarantee many years of service.
ASTM B564 Hastelloy Flange Manufacturer in India
We make and provide the best ASTM B564 Hastelloy Flanges. It includes production and the delivery according to all national, international as well as according to the customer requirements and needs. The ASTM B564 specification for forgings are typically manufactured for nickel alloy used in critical applications. Flanges manufactured are inspected by stringent tests, including mechanical, physical and dimensionally inspected,material traceability and testing.
Available standards include:
- ASTM B564
- ASME B16.5
- ASME B16.47 Series A & B
- MSS SP-44
- DIN Standards
- EN Standards
- BS Standards
- JIS Standards
Our manufacturing process ensures consistent quality, reliability, and compliance with global project requirements.
Advantages of Hastelloy Flanges
Choosing Hastelloy flanges for your industrial needs offers numerous advantages:
- Extended Lifespan: The corrosion resistance and durability of Hastelloy flanges ensure a longer service life, even in the harshest conditions. This reduces downtime and maintenance costs, making them a cost-effective solution.
- Enhanced Safety: The reliability of Hastelloy flanges in extreme environments enhances the safety of your operations. Whether dealing with corrosive chemicals or high-temperature processes, Hastelloy flanges minimize the risk of leaks and failures.
- Versatile Applications: Hastelloy flanges are suitable for a wide range of applications, including chemical processing, power generation, pharmaceuticals, and more. Their versatility ensures that they can meet the specific demands of various industries.
- Compliance with Industry Standards: At Amardeep Steel Centre LLP, we ensure that our Hastelloy flanges meet the highest industry standards, including ASTM, ASME, and DIN. This compliance guarantees that you receive products of the highest quality and performance.
Types of Hastelloy Flanges We Supply
Hastelloy Weld Neck Flanges
Designed for high-pressure and high-temperature service conditions. Weld neck flanges provide excellent stress distribution and structural integrity.
Hastelloy Slip On Flanges
Easy to install and cost-effective for low to moderate pressure systems.
Hastelloy Blind Flanges
Used to terminate or isolate piping systems for maintenance and inspection purposes.
Hastelloy Socket Weld Flanges
Ideal for small-diameter piping systems requiring leak-resistant connections.
Hastelloy Threaded Flanges
Suitable for low-pressure applications where welding is not preferred.
Hastelloy Lap Joint Flanges
Commonly used with stub ends in systems requiring frequent dismantling.
Hastelloy Orifice Flanges
Used in flow measurement systems and instrumentation applications.
As a leading Alloy Blind Flanges Dealer in India, we maintain ready stock for urgent project requirements and shutdown maintenance operations.


Schedule and Size Chart
| Size (inches) | Schedule (SCH) | Outside Diameter (OD) | Thickness (inches) | Flange Type |
| 1/2″ | SCH 10, 40, 80 | 0.84 | 0.109 – 0.147 | Weld Neck, Slip-On |
| 3/4″ | SCH 10, 40, 80 | 1.05 | 0.113 – 0.154 | Weld Neck, Slip-On |
| 1″ | SCH 10, 40, 80 | 1.32 | 0.133 – 0.179 | Weld Neck, Socket Weld |
| 2″ | SCH 10, 40, 80 | 2.38 | 0.154 – 0.218 | Weld Neck, Blind |
| 4″ | SCH 10, 40, 80 | 4.5 | 0.237 – 0.337 | Weld Neck, Slip-On |
| 6″ | SCH 10, 40, 80 | 6.625 | 0.280 – 0.432 | Weld Neck, Lap Joint |
| 8″ | SCH 10, 40, 80 | 8.625 | 0.322 – 0.500 | Weld Neck, Slip-On |
| 10″ | SCH 10, 40, 80 | 10.75 | 0.365 – 0.593 | Weld Neck, Blind |
| 12″ | SCH 10, 40, 80 | 12.75 | 0.375 – 0.687 | Weld Neck, Slip-On |
| 16″ | SCH 10, 40, 80 | 16.0 | 0.500 – 0.875 | Weld Neck, Slip-On |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | 100-140 ksi (690-965 MPa) |
| Yield Strength | 45-70 ksi (310-485 MPa) |
| Elongation (in 2″) | 40-50% |
| Hardness (Rockwell B) | 80-95 |
| Impact Strength (Charpy) | 100-150 ft-lb |
Hastelloy Flange Specifications
| Specification | Details |
| Product | Hastelloy Flanges |
| Standard | ASTM B564 |
| Grades | C276, C22, C2000, B2, X, C4 |
| Size Range | ½” NB to 60″ NB |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Flange Types | Weld Neck, Slip On, Blind, Threaded, Socket Weld, Lap Joint |
| Manufacturing Method | Forged & Machined |
| Finish | RF, FF, RTJ |
| Certification | EN 10204 3.1 / 3.2 |
Chemical Composition Chart
| Element | Hastelloy C276 (%) | Hastelloy C22 (%) | Hastelloy B2 (%) |
| Nickel (Ni) | 57.0 min | 56.0 min | 66.0 min |
| Molybdenum (Mo) | 15.0-17.0 | 13.0-15.0 | 26.0-30.0 |
| Chromium (Cr) | 14.5-16.5 | 20.0-22.5 | 1.0 max |
| Iron (Fe) | 4.0-7.0 | 2.0-6.0 | 2.0 max |
| Tungsten (W) | 3.0-4.5 | 2.5-3.5 | – |
| Cobalt (Co) | 2.5 max | 2.5 max | 1.0 max |
| Carbon (C) | 0.01 max | 0.015 max | 0.02 max |
| Manganese (Mn) | 1.0 max | 0.5 max | 1.0 max |
| Silicon (Si) | 0.08 max | 0.08 max | 0.1 max |
Physical Properties Chart
| Property | Value |
| Density | 8.89 g/cm³ |
| Melting Point | 1325-1370°C (2417-2500°F) |
| Thermal Conductivity | 9.9 W/m·K at 25°C |
| Electrical Resistivity | 1.21 μΩ·m at 20°C |
| Modulus of Elasticity | 205 GPa |
| Specific Heat Capacity | 427 J/kg·K at 25°C |
Available Hastelloy Grades
Hastelloy C276 Flanges (UNS N10276)
The most widely used Hastelloy grade due to its exceptional corrosion resistance.
Features:
- Excellent resistance to oxidizing and reducing media
- Outstanding resistance to wet chlorine gas
- High resistance to pitting and crevice corrosion
- Suitable for chemical processing industries
We are recognized among trusted UNS N10276 forged flanges exporters supplying quality products worldwide.
Hastelloy C22 Flanges
Offers superior protection against oxidizing chemicals and chloride environments.
Hastelloy C2000 Flanges
Provides exceptional resistance to sulfuric acid and mixed acid environments.
As a reputed C2000 Alloy Blind Flanges Dealer in India, we supply customized flange solutions for critical chemical processing applications.
Hastelloy B2 Flanges
Preferred for reducing environments and hydrochloric acid service.
Hastelloy X Flanges
Known for excellent oxidation resistance and elevated-temperature strength.
We are a reliable Stockist of Hastelloy X Slip On Flanges, serving aerospace, furnace, and thermal processing industries.
Application Chart
| Industry | Applications |
| Chemical Processing | Heat exchangers, reactors, evaporators, and piping systems are exposed to corrosive media such as sulfuric acid, hydrochloric acid, and chlorine. |
| Oil & Gas | Offshore platforms, subsea equipment, and refinery components where resistance to sour gas, seawater, and aggressive chemicals is essential. |
| Power Generation | Boiler components, flue gas desulfurization systems, and nuclear reactor components that require high temperature and corrosion resistance. |
| Pharmaceutical | Production and processing equipment for the manufacture of pharmaceuticals, where purity and resistance to corrosive cleaning agents are critical. |
| Marine | Components for marine engineering, such as valves, pumps, and seawater piping systems, require resistance to seawater and marine environments. |
| Aerospace | Turbine blades, combustors, and other components are exposed to high temperatures and corrosive environments in jet engines and other aerospace applications. |
Manufacturing Process of Hastelloy Flanges
Our manufacturing process follows stringent quality standards to ensure reliable performance and dimensional accuracy.

Why Choose Us for Hastelloy Flanges?
We have established ourselves as a dependable supplier by focusing on quality, technical expertise, and customer satisfaction.
Benefits of Working With Us
- Extensive inventory availability
- International quality compliance
- Competitive pricing
- Fast delivery schedules
- Custom manufacturing capabilities
- Third-party inspection support
- Global export experience
- Complete material traceability
Our team assists customers in selecting the most suitable flange grade, pressure class, and design for their application.
Request a Quote for Hastelloy Flanges
Looking for a trusted Hastelloy pipe flange supplier for your next project?
We supply premium-quality ASTM B564 Hastelloy Flange products with complete documentation, competitive pricing, and worldwide delivery. Contact our technical sales team today for quotations, material availability, and project-specific recommendations.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Hastelloy Flanges. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

