Hastelloy Pipe Fittings Manufacturer, Supplier & Exporter in India - Mcneil Instruments
Mcneil Instruments is a premier manufacturer, supplier, and exporter of Hastelloy pipe fittings in India, offering high-performance fittings in premium grades C276, C22, B2, B3, and X. Our solutions are designed for the most demanding chemical, petrochemical, power, and oil & gas applications worldwide.
Hastelloy pipe fittings are components, like elbows, tees, reducers, and couplings, made from a nickel-based alloy known for its exceptional corrosion resistance and high-temperature strength. They are used in piping systems, particularly in industries dealing with harsh chemicals or high temperatures, to connect pipes and change flow direction
Hastelloy pipe fittings are precision-made components used to connect, redirect, reduce or cap off piping systems where extreme corrosion resistance and mechanical strength are non-negotiable. They’re forged or machined from nickel-based Hastelloy alloys and designed to perform in environments where ordinary materials fail.
Hastelloy pipe fittings are premium nickel-based alloy components engineered for piping systems that operate in highly corrosive, high-temperature, and chemically aggressive environments. These fittings are widely used where stainless steel, duplex, or even other nickel alloys fail to provide long-term reliability.
What this really means is protection in process lines exposed to strong acids, chlorides, solvents, mixed chemicals, and thermal stress.
Hastelloy Grades We Offer
Different applications require different Hastelloy grades. Commonly used grades include:
Hastelloy C276 – Excellent overall corrosion resistance in mixed chemicals
Hastelloy C22 – Superior resistance to pitting and chloride attack
Hastelloy B2 – Ideal for strong reducing acids like hydrochloric acid
Hastelloy B3 – Improved version of B2 with better thermal stability
Hastelloy X – Best for high-temperature oxidation resistance
Selecting the right grade depends on the chemical environment and operating conditions.
Common Types of Hastelloy Pipe Fittings
We supply Hastelloy pipe fittings in all standard configurations:
Elbows – Directional flow control in corrosive lines
Tees & Crosses – Reliable branching in chemical systems
Reducers – Smooth pipe size transitions
Couplings & Unions – Leak-resistant straight connections
Caps & Plugs – Secure pipe-end closures
Stub Ends – Easy dismantling with lap joint flanges
Each fitting is manufactured for precision, durability, and leak-free performance.
Hastelloy C276 Pipe Fittings Manufacturer, Supplier & Exporter in India
Mcneil Instruments is a trusted Hastelloy C276 pipe fittings manufacturer, supplier, and exporter in India. Alloy C276 (UNS N10276) is a nickel-molybdenum-chromium superalloy enhanced with tungsten, offering exceptional resistance to pitting, stress-corrosion cracking, and oxidizing/ reducing environments.
Technical Specification
| Parameter | Specification |
| Composition | Ni 57 / Cr 15–17 / Mo 15–17 / W 3–4 |
| Temp. Range | –200 °C to +595 °C |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
| Hardness | ≤ 95 HRB |
| Standards | ASTM B366, ASME SB366, B574 |
Advantages & Applications:
- Ideal for flue-gas desulfurization, chlorinated acid service, and paper production lines.
- Outstanding corrosion resistance across a wide pH and temperature range.
- Good ductility and weldability for pipe spools, tee joints, and elbow fittings.
Hastelloy C22 Pipe Fittings Manufacturer, Supplier & Exporter in India
Mcneil Instruments is a leading Hastelloy C22 pipe fittings manufacturer, supplier, and exporter in India. Alloy C22 (UNS N06022) combines high levels of chromium, molybdenum, and tungsten, forming a stable passive oxide film offering outstanding resistance to various corrosive agents.
Technical Specification
| Parameter | Specification |
| Composition | Ni 62 / Cr 21–22 / Mo 12.5–14.5 / W 2.5–3.5 |
| Temp. Range | –200 °C to +1040 °C |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
| Hardness | ≤ 95 HRB |
| Standards | ASTM B366, ASME SB366, B574 |
Advantages & Applications:
- Preferred for flue gas desulfurization, chemical processing, and offshore oil-gas environments.
- Highly resistant to crevice and stress corrosion, as well as oxidizing/reducing conditions.
- Excellent for high-purity process systems with demanding corrosive footprints.
Hastelloy B2 Pipe Fittings Manufacturer, Supplier & Exporter in India
Mcneil Instruments offers Hastelloy B2 pipe fittings, as a trusted manufacturer, supplier, and exporter in India. Alloy B2 (UNS N10675) is a nickel-molybdenum grade optimized for sulfuric and phosphoric acid applications, delivering superb resistance to reducing environments.
Technical Specification
| Parameter | Specification |
| Composition | Ni 65 / Mo 26–30 / Cr 1 / Fe 2.5 max |
| Temp. Range | –196 °C to +315 °C |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
| Hardness | ≤ 95 HRB |
| Standards | ASTM B366, ASME SB366, B574 |
Advantages & Applications:
- Commonly used in process piping for hot concentrated sulfuric acid.
- Excellent formability and sound weldability ideal for elbows, tees, and custom fittings.
- Also effective in phosphoric acid and alkylation processes.
Hastelloy B3 Pipe Fittings Manufacturer, Supplier & Exporter in India
Mcneil Instruments is a reliable Hastelloy B3 pipe fittings manufacturer, supplier, and exporter in India. Alloy B3 (UNS N10675 mod) balances enhanced sulfuric-acid resistance with improved weldability and thermal stability.
Technical Specification
| Parameter | Specification |
| Composition | Ni 64 / Mo 29–34 / Cr 1 / Fe 2.5 max |
| Temp. Range | –196 °C to +315 °C |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
| Hardness | ≤ 95 HRB |
| Standards | ASTM B366, ASME SB366, B574 |
Advantages & Applications:
- Ideal for more aggressive sulfuric acid service than B2, combined with good welding properties.
- Used in chemical, fertilizer, and textile-processing piping systems.
- Excellent for elbows and tees in high-acidity process lines.
Hastelloy X Pipe Fittings Manufacturer, Supplier & Exporter in India
Mcneil Instruments supplies Hastelloy X pipe fittings as a leading manufacturer, supplier, and exporter in India. Alloy X (UNS N06002) is a nickel-chromium-iron-molybdenum alloy designed for high-temperature strength and oxidation resistance up to 1100 °C.
Technical Specification
| Parameter | Specification |
| Composition | Ni 47 / Cr 20–23 / Fe 18 / Mo 8–10 |
| Temp. Range | –253 °C to +1100 °C |
| Tensile Strength | ≥ 758 MPa |
| Yield Strength | ≥ 345 MPa |
| Hardness | ≤ 95 HRB |
| Standards | ASTM B366, ASME SB366, B574 |
Advantages & Applications:
- Stable in turbine components, combustors, and hot-gas ducting.
- Resistant to carburization and oxidation in gas turbine and furnace environments.
- Ideal for thick-walled pipe fittings and welded assemblies.
Why Hastelloy Pipe Fittings Are Preferred
Here’s the thing: Hastelloy alloys are built around nickel, chromium, and molybdenum, giving them exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. They perform reliably in both oxidizing and reducing environments, which is rare among industrial alloys.
That’s why Hastelloy is trusted in chemical plants, pollution control units, and critical process piping where corrosion risk is constant.
Where Hastelloy Pipe Fittings Are Used
Hastelloy pipe fittings are widely used in industries handling aggressive chemicals:
Chemical Processing Plants – Acid and solvent piping
Pollution Control Systems – Scrubbers and exhaust treatment
Oil & Gas Industry – Corrosive process streams
Pharmaceutical Industry – Clean, corrosion-free process lines
Pulp & Paper Industry – Chemical treatment and bleaching lines
Waste Treatment Plants – Harsh chemical exposure
Hastelloy is often chosen when extreme corrosion resistance is the primary concern.
How to Choose the Right Hastelloy Pipe Fittings
When selecting Hastelloy pipe fittings, consider:
Type and concentration of chemicals
Presence of chlorides or strong acids
Operating temperature and pressure
Welding and fabrication requirements
Applicable industry standards
For piping systems exposed to unpredictable and severe corrosion, Hastelloy offers long-term assurance.
Manufacturing, Supply & Export from India
We manufacture, supply, and export Hastelloy pipe fittings using certified raw materials and precision fabrication methods. Our fittings are:
Produced with tight dimensional tolerances
Tested for corrosion and pressure resistance
Inspected as per international standards
Finished for chemical and industrial applications
Securely packed for domestic and global shipment
We support EPC contractors, chemical plants, and international buyers with consistent quality and reliable delivery.
Key Features and Benefits
- Outstanding resistance to strong acids and chlorides
• Excellent protection against pitting and crevice corrosion
• Performs in both oxidizing and reducing chemical media
• Maintains strength at elevated temperatures
• Good weldability and fabrication properties
• Long service life in severe industrial conditions
These benefits make Hastelloy pipe fittings a dependable choice for critical piping networks.
Why Choose Mcneil Instruments for Hastelloy Pipe Fittings
Mcneil Instruments manufactures these fittings with full traceability, precision forging, CNC machining, strict quality checks and global export support. Each piece comes with material certificates and testing documentation, so you know what you’re installing complies with project requirements.
Applications Across Industries
- Chemical & Petrochemical Processing
- Power Generation and Steam Piping
- Oil & Gas and Offshore Platforms
- Pharmaceutical and Food-Safe Environments
- High-Temperature Furnaces & Heat Exchangers
Contact Us Today!
Seeking alloy-resistant Hastelloy pipe fittings in India? Reach out to Mcneil Instruments for detailed product data, compatibility advice, bespoke solutions, and fast global delivery.
Typical Industries Served
- Chemical & petrochemical
- Oil & gas and offshore
- Power plants and nuclear facilities
- Pharmaceuticals and food processing
- Marine and desalination projects
- Hastelloy C276 Forged Pipe Fittings – Premium chemical-resistant forged fittings.
- Hastelloy C-22 Pipe Fitting – Ideal where broad corrosion resistance is needed.
- Hastelloy C-22 Couplings – Connect pipes reliably in corrosive lines.
- Hastelloy Forged Fittings – General alloy solutions for industrial use.
Hastelloy Sanitary Ferrule Fittings – Good for hygienic and sanitary pipin
Frequently Asked Questions – Hastelloy Pipe Fittings
What makes Hastelloy pipe fittings better than stainless steel?
Hastelloy offers far superior resistance to acids, chlorides, and mixed chemical environments.
Are Hastelloy pipe fittings suitable for chemical plants?
Yes. They are widely used in highly corrosive chemical processing systems.
Can Hastelloy pipe fittings be welded?
Yes. They have good weldability with standard nickel-alloy welding procedures.
Which Hastelloy grade should be used for hydrochloric acid?
Hastelloy B2 or B3 are typically preferred for strong reducing acids like hydrochloric acid.
Where are Hastelloy pipe fittings commonly used?
Chemical plants, pollution control units, oil & gas facilities, waste treatment plants, and pharmaceutical processing systems.




