Inconel 625 Instrumentation Fittings Manufacturer in India

At Fit-lok, we manufacture these fittings in India and stock all standard configurations, so customers across Mumbai, Pune, Ahmedabad, Chennai, and other industrial hubs don’t have to wait on long lead times. We also regularly export to the Middle East, Europe, Southeast Asia, and North America.

Every fitting leaves our facility compliant with ASTM B564 and tested against NACE MR0175 / ISO 15156 and MR0103. MTCs in EN 10204 3.1 or 3.2 format are provided based on your project requirement.

Inconel 625 instrumentation fittings make sense when your application pushes beyond what standard alloys can handle. If you’re dealing with chloride rich conditions, seawater, coastal setups, or offshore installations, SS 316L will start showing pitting and crevice corrosion sooner than expected. The same goes for sour gas service with H₂S present, where NACE MR0175 compliance isn’t optional, it’s a requirement.

Pressure is another factor. Once you’re running above 6,000 PSI, standard alloys begin losing their edge. Add to that the thermal stress of cycling between cryogenic lows (−196°C) and high heat operating conditions (up to +650°C), and the material selection becomes straightforward. Inconel 625 holds up where others don’t.

Acidic media, sulfuric, phosphoric, nitric is another area where SS 316L and Duplex tend to fall short over time. If your process conditions check even one of these boxes, premature failure with conventional alloys is a real risk, not just a theoretical one. Inconel 625 is built specifically for these environments, and that’s what makes it the reliable long term choice.

Before placing an order for Inconel 625 ferrule fittings, verify the following with your supplier:

• Material traceability – Must required EN 10204 3.1 or 3.2 Mill Test Certificates
• Compliance certifications – confirm NACE MR0175 / ISO 15156 Standards for sour service
• Heat number traceability
• Thread standard – confirm NPT, BSPT, or BSPP
• Pressure rating – Fitting pressure rating should match your system design pressure
• Third party inspection – Supplier supports SGS, Bureau Veritas, or TÜV inspection

Check Mechanical properties of UNS N06625 male connector and Inconel 625 bulkhead union.

We manufacture Alloy 625 high pressure compression fittings as per ASTM B564 Standards

• Oil & Gas
• Petrochemical
• Chemical Processing
• Aerospace & Defense
• Power Generation
• Desalination Plants
• Nuclear & Marine

Nickel 625 compression tube fittings are known for high oxidation and corrosion resistant properties

Request a current price list by sharing your size and quantity, we respond within 24 hours.

Do you export Inconel 625 instrumentation fittings outside India?

Yes. We regularly export to the USA, UAE, UK, Germany, Saudi Arabia, Singapore, and other countries.

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Can you supply custom sizes or non standard configurations?

Yes. We manufacture custom OD sizes, special end connections, and non standard configurations based on customer drawings or specifications

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Do you provide Mill Test Certificates for Inconel 625 fittings?

Yes. All our Inconel 625 instrumentation fittings come with EN 10204 3.1 Mill Test Certificates as standard.

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Can Nickel 625 ferrule fittings be used in cryogenic LNG service?

Yes. The Curie temperature of EN 2.4856 double ferrule fittings is below −196°C at ambient

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How do ASTM B564 UNS N06625 Male Connector perform in phosphoric acid service?

It shows excellent resistance to phosphoric acid across a wide range of concentrations and temperatures