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.
What Are Hastelloy Pipe Fittings?
These are pipe accessories such as elbows, tees, reducers, couplings, caps, crosses and more — all made from Hastelloy alloys. The alloy’s chemistry (nickel base with molybdenum, chromium and other elements) gives it unmatched resistance to corrosive media and high temperatures.
Actual grades offered include:
- Hastelloy C276 – balanced corrosion resistance in both oxidizing and reducing environments.
- Hastelloy C22 – broader resistance to acid attack and crevice corrosion.
- Hastelloy B2 & B3 – optimized for sulfuric and other reducing acids.
- Hastelloy X – high-temperature strength plus oxidation resistance.
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.
Where Hastelloy Pipe Fittings Are Used
Because of their chemical and thermal performance, these fittings are favored in industries that push materials to the limit:
- Chemical Processing & Petrochemical — Handles acids, chlorides, solvents and mixed corrosive streams.
- Oil & Gas — Offshore platforms and refineries where sour fluids and high pressures are common.
- Power Generation — Steam piping, turbines, and nuclear service.
- Pharmaceutical & Fine Chemicals — Ultra-clean systems with aggressive chemicals.
- Marine & Desalination — Resists seawater attack and saline corrosion.
- Heat Exchangers & Furnaces — High temperature and oxidation environments.
How to Use Hastelloy Pipe Fittings
Using Hastelloy fittings isn’t complicated, but it does require attention to material compatibility and system design:
- Select the Right Grade
Base this on fluid chemistry, temperature, pressure and regulatory requirements.- For mixed corrosive chemicals, C22 or C276 is a safe choice.For high heat and oxidation, Hastelloy X is better. Choose Fitting Type
- Elbows change direction.
- Tees split or join flows.
- Reducers change pipe size.
- Couplings/Caps join or close off lines.
- Installation Basics
- Ensure pipe ends are clean and aligned.
- Use appropriate welding or threading per project specs.
- Perform pressure tests post-installation to check for leaks.
- Follow Standards & Certification
Use fittings made to ASTM/ASME standards such as ASTM B366/ASME SB366 and ensure material test certificates (EN 10204 3.1/3.2) accompany each shipment.
Technical Highlights
A typical Hastelloy fitting delivers:
- Temperature range: from cryogenic up to very high heat depending on grade.
- Pressure classes: available in Class 2000 to 9000 for many grades.Mechanical performance: high tensile strength, excellent ductility and fatigue resistance.
- Forms: seamless, welded or fabricated to match piping needs.
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 are Hastelloy pipe fittings used for?
Hastelloy pipe fittings are used in piping systems that handle corrosive chemicals, high temperatures, or high pressure. They’re commonly installed in chemical plants, oil & gas facilities, power stations, and marine environments. - Why are Hastelloy pipe fittings better than stainless steel?
Hastelloy provides far superior resistance to corrosion, pitting, and chemical attack compared to stainless steel. It also maintains strength at elevated temperatures, making it suitable for extreme operating conditions. - Which Hastelloy grades are commonly used for pipe fittings?
The most common grades include Hastelloy C276, C22, B2, B3, and Hastelloy X. Each grade is selected based on chemical exposure, temperature range, and pressure requirements. - Can Hastelloy pipe fittings handle high temperature and pressure?
Yes. Hastelloy pipe fittings are designed to perform reliably under high pressure and extreme temperatures without losing mechanical integrity or corrosion resistance. - Where are Hastelloy pipe fittings most commonly installed?
They are widely used in chemical processing plants, petrochemical industries, offshore oil & gas platforms, heat exchangers, reactors, and pharmaceutical manufacturing systems.