Hastelloy B3 Tube Fittings Manufacturer, Supplier & Exporter USA, Turkey, Nigeria and Worldwide

Hastelloy B3 Tube Fittings Manufacturer, Supplier & Exporter in India, USA, Turkey & Nigeria

Hastelloy B3 Tube Fittings are manufactured from a nickel-molybdenum alloy developed for demanding reducing-acid and chemical-processing environments. Hastelloy B3 is identified by UNS N10675 and is particularly known for its resistance to hydrochloric acid and improved thermal stability compared with earlier B-series alloys.

Mcneil Instruments is a Hastelloy B3 Tube Fittings Manufacturer, Supplier, Stockist & Exporter in India, USA, Turkey & Nigeria, supplying instrumentation and tube fittings in configurations such as double ferrule fittings, compression fittings, unions, elbows, tees, connectors, adapters and bulkhead fittings.

Hastelloy B3 contains approximately 27–32% molybdenum, at least 65% nickel and controlled additions of chromium and iron, with carbon limited to approximately 0.01% maximum. The alloy was developed to address thermal-stability and fabrication concerns associated with Hastelloy B2 while maintaining strong resistance to reducing chemical environments.

What Are Hastelloy B3 Tube Fittings?

Hastelloy B3 Tube Fittings are precision components used to connect, branch, redirect, terminate or transition tubing in instrumentation and process systems.

They are selected for tubing applications where the process medium can be highly corrosive and where a nickel-molybdenum alloy is required.

Typical applications include:
Chemical-processing systems
Hydrochloric-acid service
Acid-handling systems
Chemical instrumentation
Process-control systems
Pharmaceutical processing
Petrochemical equipment
Process sampling systems
Corrosive-fluid transfer systems
Heat-transfer equipment

Actual alloy suitability depends on chemical concentration, temperature, contaminants, aeration and other process conditions.

Hastelloy B3 Tube Fittings Specifications

Parameter Specification
Material Hastelloy B3
Alloy Alloy B3
UNS N10675
Werkstoff No. 2.4600
Alloy Type Nickel-Molybdenum Alloy
Nickel 65% Min
Molybdenum 27–32%
Wrought Fittings ASTM B366 / ASME SB366
Forged Components ASTM B564 / ASME SB564, where applicable
Seamless Tube ASTM B622 / ASME SB622
Welded Tube ASTM B626 / ASME SB626
Butt-Weld Dimensions ASME B16.9, where applicable
Forged SW / Threaded Dimensions ASME B16.11, where applicable
Connection Types Compression, Double Ferrule, Threaded, Tube-to-Tube
Thread Options NPT, BSP, BSPT, BSPP and Metric, as specified
Size Inch and metric configurations
Material Condition Solution Annealed / specification-dependent
Surface Finish Machined / polished / specified
Certification MTC / EN 10204 documentation where required

ASTM B366 covers applicable factory-made wrought nickel and nickel-alloy fittings, while standards such as ASME B16.9 and B16.11 address dimensions and requirements for the relevant fitting configurations.

Technical Specification of Hastelloy B3 Tube Fittings

Parameter	Specification
Composition	Ni 64 / Mo 29–34 / Cr 1 / Fe 2.5 max
Temperature Range	–196 °C to +315 °C
Tensile Strength	≥485 MPa
Yield Strength	≥170 MPa
Hardness	≤95 HRB
Standards	ASTM B366, ASME SB366, B574

Chemical Composition of Hastelloy B3

Typical chemical requirements for Hastelloy B3 / UNS N10675 include:

Element Composition
Nickel 65.0% Min
Molybdenum 27.0–32.0%
Chromium 1.0–3.0%
Iron 1.0–3.0%
Cobalt 3.0% Max
Manganese 3.0% Max
Tungsten 3.0% Max
Aluminium 0.50% Max
Silicon 0.10% Max
Titanium 0.20% Max
Carbon 0.01% Max
Copper 0.20% Max
Phosphorus 0.03% Max
Sulfur 0.01% Max

The high molybdenum content provides the primary strengthening and corrosion-resistance contribution, while the controlled carbon level helps limit undesirable precipitation during fabrication and thermal exposure.

Mechanical Properties of Hastelloy B3

For solution-annealed material, commonly specified minimum mechanical requirements include:

Property Minimum Value
Tensile Strength 760 MPa / 110 ksi
Yield Strength, 0.2% Offset 350 MPa / 51 ksi
Elongation 40%

Actual mechanical properties depend on product form, dimensions and material condition. Certified values for the supplied heat should be taken from the applicable material test certificate.

Advantages & Applications

Excellent Corrosion Resistance: Withstands aggressive acids, chlorides, and reducing environments, ensuring reliability in industrial piping systems.
Wide Industrial Use: Suitable for chemical processing, desalination plants, marine, offshore, and power generation industries.
Good Ductility and Weldability: Ideal for pipe spools, elbows, tees, and other custom fittings without compromising structural integrity.
High-Temperature Performance: Maintains integrity under extreme temperatures and chemical exposure.
Durable and Long-Lasting: Reduces maintenance and downtime due to its resistance to pitting, crevice corrosion, and stress corrosion cracking.

Applications:

Chemical processing and hydrofluoric acid handling
Marine and offshore piping systems
Desalination and water treatment plants
Power generation and industrial high-temperature systems

Why Work with Mcneil Instruments

Certified Manufacturer, Supplier & Exporter: Reliable source of Hastelloy B3 tube fittings in India and worldwide.
Global Reach: Serving clients in Africa, Europe, UAE, and other international markets.
Quality Assurance: Every fitting undergoes rigorous testing for corrosion resistance, mechanical strength, and dimensional accuracy.
Custom Solutions: Available in various sizes, wall thicknesses, and connection types to meet project-specific requirements.
Timely Delivery: Ensures on-time supply worldwide, supporting both urgent and bulk orders efficiently.

Contact Mcneil Instruments Today – Get premium Hastelloy B3 Tube Fittings for demanding chemical, marine, and industrial applications worldwide.

Frequently Asked Questions – Hastelloy B3 Tube Fittings

Why are Hastelloy B3 tube fittings preferred for chemical processing?

Hastelloy B3 tube fittings are highly resistant to strong reducing acids like hydrochloric acid and other corrosive chemicals, ensuring safe and durable performance in chemical industries worldwide.

Can Hastelloy B3 fittings be customized for specific requirements?

Yes, we manufacture Hastelloy B3 tube fittings in various diameters, wall thicknesses, and connection types, including tube-to-male, female, union, elbow, and tee, to meet project needs globally.

Which industries commonly use Hastelloy B3 tube fittings?

They are widely used in chemical processing, desalination, offshore and marine applications, and power generation where high corrosion resistance and mechanical strength are critical.

How resistant are Hastelloy B3 tube fittings to corrosion?

Hastelloy B3 fittings provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, making them reliable in harsh chemical and high-temperature environments.

Do you supply Hastelloy B3 tube fittings internationally?

Yes, as a trusted manufacturer, supplier, and exporter, we deliver Hastelloy B3 tube fittings across India, Africa, Europe, UAE, and other worldwide markets with consistent quality and timely delivery.

What makes Hastelloy B3 Tube Fittings suitable for industrial projects in the USA, Turkey, and Nigeria?

Hastelloy B3 provides strong resistance to aggressive reducing acids, particularly hydrochloric acid, along with pitting, crevice corrosion, and stress corrosion cracking. This makes it suitable for demanding chemical, marine, desalination, offshore, and power-generation systems across the USA, Turkey, and Nigeria. Mcneil Instruments offers customized configurations and international supply for project requirements.

Hastelloy B3 Tube Fittings