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Certifications EN 10204 3.1 MTR · PMI Test Report

NAI-LOK Hastelloy C276 Corrosion Resistant Double Ferrule Tube Union Fitting Elbow Tee 1/4 3/8 1/2 3/4 1 Inch UNS N10276 Fitting

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$ 80.00 80.0 USD $ 80.00

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Minimum order quantity: 2 Units
  • Pipe Class
  • Thread Types
  • Connectivity
  • Pressure
  • Application
  • Surface Treatment
  • Pipe Features
  • Technic
  • Shape
  • System of Measurement
  • Head code
  • Mounting hole diameter
  • Customized support
  • Warranty
  • Model number (Specification)
  • Place of origin
  • Material Grade Portfolio
  • Size Specification
  • Chemical Resistance Profile
  • Standard
  • Installation Feature
  • Connection Configuration
  • Internal Surface Finish Grade
  • Certification & Traceability
  • Selling Units
  • Single volume
  • Single gross weight
  • Type (Product option)
  • Material (Product option)
  • Pipe size

This combination is unavailable.

Key attributes

View all
Pipe Class
Not Rated
Thread Types
NPT / SAE / UNF/ BSPP / BSPT
Connectivity
Double ferrule
Pressure
6000psi
Application
Oil And Gas, Pharmaceutical, Chemical Processing, Desalination, Offshore Oil Gas
Surface Treatment
Polishing
Product description

Product details

Double Ferrule Design Compression Tube Fittings: Provides a high-integrity metal-to-metal seal for leak-proof performance in high-pressure systems.

Hastelloy C276 Double Ferrule Tube Fitting Union Elbow Tee 1/4 to 1 Inch UNS N10276 Instrument Compression Fitting

NAI-LOK Tube Fittings are designed to provide safe, reliable and leak-free connections for critical fluid and gas systems. Manufactured with advanced precision machining technology, our tube fittings deliver excellent sealing performance, high pressure resistance and long service life for demanding industrial applications.

Premium Materials for Corrosion Resistance Available in SS316, SS316L and special alloy materials including Monel 400, Hastelloy C276 and Inconel 625, NAI-LOK Tube Fittings provide outstanding corrosion resistance for chemical processing, oil & gas, semiconductor, power and instrumentation applications.

Wide Material Range: Available in Hastelloy C276, C22, B3, and other corrosion-resistant alloys for diverse applications.

Wide Range of Sizes and Connections Our Tube Fittings are available in fractional and metric sizes, including 1/16", 1/8", 1/4", 3/8", 1/2", 3/4", 1", 6mm, 8mm, 10mm, 12mm and more. Various connection options such as NPT, BSPP, BSPT and customized threads are available.

Exceeds Industry Standards: Meets NACE MR0175, ASTM B366, and ASME B31.3 certifications for high-quality assurance.

Application Fields: Oil & Gas | Chemical Processing | Petrochemical | Semiconductor | Laboratory Equipment | Hydraulic Systems | Industrial Instrumentation

Frequently asked questions

Hastelloy C276 is a nickel-chromium-molybdenum alloy offering outstanding corrosion resistance in aggressive environments. It excels against pitting, stress corrosion cracking, strong oxidizers (like wet chlorine gas, ferric/cupric chlorides), and harsh acids (sulfuric, hydrochloric, nitric). This makes NAI-LOK C276 fittings ideal for severe chemical processing, marine, and oil & gas applications.

Our double ferrule design utilizes a two-ring mechanism: the front ferrule creates a primary pressure seal against the fitting body, while the back ferrule hinges and grips the tube securely without damaging the wall. This dual action distributes strain evenly, preventing blowouts, withstanding severe vibrations, and ensuring a gas-tight seal up to high-pressure ratings.

Yes. NAI-LOK double ferrule fittings are manufactured to strict international dimensional and tolerance standards (ASTM/ASME). They are fully compatible and interchangeable with major industry brands like Swagelok, Parker, and Gyrolok in terms of size, thread profiles, and tube connection performance.

We offer straight unions, union elbows, union tees, and reducers in fractional sizes ranging from 1/4", 3/8", 1/2", 3/4", to 1" O.D. Pressure ratings depend on tube size and wall thickness, typically ranging from 3,000 PSI to over 10,000 PSI (up to 689 bar) at ambient temperatures.

Yes, every order comes with full traceability. We provide EN 10204 3.1 Material Test Reports (MTC) showing exact chemical composition and mechanical properties, confirming compliance with UNS N10276 / ASTM B574 standards.

Hastelloy C276 maintains high mechanical strength and oxidation resistance at elevated temperatures, suitable for continuous service up to 1,000°F (538°C) in suitable atmospheres. It is also suitable for cryogenic applications without brittle fracture.

Yes. NAI-LOK double ferrule fittings can be disassembled and reassembled multiple times without compromising the seal, provided proper installation torque and inspection procedures are followed. Corrosion Resistant Tube Fitting, Hastelloy C276 Compression Fitting, 1/2 Inch Hastelloy Tube Fitting, High Pressure Double Ferrule Fitting, Hastelloy C276 Tube Connector, Chemical Resistant Instrument Fitting

All fittings undergo rigorous quality checks, including 100% visual and dimensional inspection, material PMI (Positive Material Identification) testing, and hydrostatic or helium leak testing upon request to guarantee zero-defect performance. Hastelloy C276 Tube Fitting, Double Ferrule Tube Fitting, UNS N10276 Union Fitting, Hastelloy C276 Fitting, C276 Tube Union, Hastelloy C276 Elbow Fitting, Hastelloy C276 Tee Fitting, Instrumentation Tube Fitting, Twin Ferrule Tube Union
Description images
Product detail
Product detail
Product detail
Product detail
Packaging and fulfilment
  • Step 1

    Payment and order readiness

    Minimum order: 2 Units

    Payment terms, specifications, and order details are confirmed before preparation begins.

  • Step 2

    Preparation

    25 days

  • Step 3

    Packaging and dispatch

    Ocean freight via Maersk · Approx. shipping fee: $ 0.84 for 1 unit · Transit time: Est. 17-24 days

    Final packing, freight, and delivery dates are confirmed before dispatch.

Technical specifications
Other details 30 fields
Pipe Class
Not Rated
Thread Types
NPT / SAE / UNF/ BSPP / BSPT
Connectivity
Double ferrule
Pressure
6000psi
Application
Oil And Gas, Pharmaceutical, Chemical Processing, Desalination, Offshore Oil Gas
Surface Treatment
Polishing
Pipe Features
Corrosion-resistant, Chemical Resistant
Technic
Forged
Shape
Round
System of Measurement
Metric / Inch
Head code
Hexagon
Mounting hole diameter
0.25 in
Customized support
OEM
Warranty
3 Years
Model number (Specification)
NMC Tube Fitting
Place of origin
China, Jiangsu
Material Grade Portfolio
Hastelloy C276 (UNS N10276), C22 (N06022), B3 (N10675)
Size Specification
Metric 3mm to 38mm & Fractional 1/16 to 1 Tube OD
Chemical Resistance Profile
Highly Resistant to Hydrochloric Acid HCl, Sulfuric Acid, Wet Chlorine
Standard
NACE MR0175, ISO 15156, ASTM B574, ASME B31.3
Installation Feature
Petronas Malaysia, Saudi Aramco UAE, Tangguh LNG Indonesia
Connection Configuration
Union Tee, Male Connector, Elbow, Bulkhead Union, Adapter, Cross
Internal Surface Finish Grade
Double Ferrule Type, Silver-Plated Threads (Anti-Galling)
Certification & Traceability
EN 10204 3.1 MTR, PMI Test Report
Selling Units
Single item
Single volume
0 cm3
Single gross weight
0.0 kg
Type (Product option)
Cap, Union, Coupling, Adapters, Nipple, Plug, reducer, nut, Male connector, Bulkhead Union, Female Connector, Union Elbow, Union Tee, Union Cross, Front Ferrule, Back Ferrule
Material (Product option)
Alloy
Pipe size
10 mm, 12 mm, 14 mm, 30 mm, 3mm, 4mm, 6mm, 8mm, 1/4, 3/8, 1/2, 3/4, 1 inch
Lead time
25 days
Minimum order
2 Units

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