ASTM B366 Hastelloy B2 Buttweld Fittings are designed for piping systems that operate in highly corrosive and chemically aggressive environments. These fittings are especially known for their excellent resistance to hydrochloric acid and other reducing media, where many conventional materials fail.

As an experienced Hastelloy B2 Buttweld Fittings Manufacturer & supplier in India, we provide fittings that meet strict international standards and perform reliably in real industrial conditions. Our focus is not only on supplying products but also on helping customers select the right alloy for long-term safety and efficiency.

What Are Hastelloy B2 Buttweld Fittings?

Hastelloy B2 Buttweld Fittings are pipe fittings manufactured from a nickel-molybdenum alloy known as Hastelloy Alloy B2 (UNS N10665 / Werkstoff No. 2.4617). These fittings are joined to pipes using butt welding, which creates a strong, smooth, and leak-proof joint.

Buttweld fittings are preferred in high-pressure and high-temperature systems because they:

  • Provide uniform strength across the joint
  • Reduce turbulence and pressure loss
  • Minimize the risk of corrosion at connection points

Because of these benefits, Hastelloy B2 grade buttweld pipe fittings are widely used in critical chemical and process industries.

Range of Hastelloy B2 Buttweld Pipe Fittings We Supply

We offer a complete range of ANSI B16.9 Hastelloy B2 Welded Buttweld Fittings, manufactured with tight dimensional tolerances and smooth surface finishes.

➤ Hastelloy B2 Elbows

  • Alloy B2 Short Radius Elbow Supplier
  • Long Radius & Short Radius options
  • Ideal for direction changes with minimal pressure drop

➤ Hastelloy B2 Tees

  • ANSI B16.9 Hastelloy B2 Welded Tee
  • Equal Tee & Reducing Tee
  • Used for flow distribution

➤ Hastelloy Alloy B2 Reducers

  • B2 Hastelloy Alloy Reducer
  • Concentric & Eccentric Reducers
  • Helps connect pipes of different diameters smoothly

➤ Hastelloy Alloy B2 Cross

  • Hastelloy Alloy B2 Equal Cross
  • Used where four-direction flow is required

➤ Stub Ends

  • ASME SB366 Alloy B2 Long Stub
  • Hastelloy B2 Long Stub End Manufacturer
  • Short & Long Stub Ends available

➤ End Caps

  • DIN 2.4819 End Cap
  • Used to safely close pipeline ends

All fittings are also available as Hastelloy UNS N10665 Pipe Fittings and Hastelloy WERKSTOFF NR. 2.4617 Pipe Fitting, depending on project specifications.

Applications of Hastelloy B2 Buttweld Fittings

Because of their chemical and mechanical properties, Hastelloy B2 Buttweld Fittings Suppliers serve industries such as:

  • Chemical processing plants
  • Acid production and storage units
  • Petrochemical refineries
  • Fertilizer and pharmaceutical industries
  • Oil & gas processing facilities

These fittings are chosen when safety, corrosion resistance, and long service life are critical.

ASTM B366 Hastelloy B2 Buttweld Fittings – Specifications

Parameter Details
Product Type Buttweld Pipe Fittings
Standard ASTM B366 / ASME SB366
Material Grade Hastelloy B2
UNS Number N10665
Werkstoff Number 2.4617
Dimensions ANSI B16.9
Size Range ½” NB to 48” NB
Wall Thickness SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS
Manufacturing Process Hot Formed / Cold Formed
Heat Treatment Solution Annealed
End Connection Beveled Ends
Surface Finish Pickled, Shot Blasted
Testing PMI, UT, RT, Dimensional Inspection
Certification EN 10204 3.1

Chemical Composition of Hastelloy B2 (UNS N10665)

Element Percentage (%)
Nickel (Ni) Balance
Molybdenum (Mo) 26.0 – 30.0
Iron (Fe) 2.0 max
Chromium (Cr) 1.0 max
Carbon (C) 0.02 max
Manganese (Mn) 1.0 max
Silicon (Si) 0.10 max
Phosphorus (P) 0.04 max
Sulfur (S) 0.03 max
Cobalt (Co) 1.0 max

Mechanical Properties of Hastelloy WERKSTOFF NR. 2.4617 Pipe Fitting

Property Value
Tensile Strength 760 MPa (min)
Yield Strength (0.2% Offset) 345 MPa (min)
Elongation 40% (min)
Hardness 90 HRB (max)
Density 9.24 g/cm³
Melting Range 1330°C – 1380°C

ASTM B366 Alloy B2 Long Stub - Manufacturing Process & Quality Control

Each Hastelloy B2 Buttweld Fitting is produced through a controlled manufacturing process:

  • Raw material inspection
  • Hot or cold forming
  • Solution annealing
  • Precision machining and beveling
  • Non-destructive testing
  • Final inspection and documentation

Our practical experience in handling nickel alloys ensures consistent quality and dependable performance in real operating conditions.

ANSI B16.9 Hastelloy B2 Welded Buttweld Fittings - Packaging, Certification & Global Supply

Fittings are securely packed using wooden crates and pallets to prevent transit damage. Each shipment includes full material traceability and EN 10204 3.1 certification.

We supply Hastelloy B2 Buttweld Fittings across India and to international markets with reliable delivery timelines.

Why Customers Choose Us For Hastelloy UNS N10665 Pipe Fittings?

  • Strong technical understanding of Hastelloy alloys.
  • Proven manufacturing and supply experience
  • Consistent quality and compliance with standards
  • Competitive pricing and responsive support

Rather than just listing products, we focus on helping customers select fittings that perform reliably in their specific operating environment.

Get in Touch for Hastelloy B2 Buttweld Fittings

If you are looking for a reliable Hastelloy B2 Buttweld Fittings Manufacturer & supplier in India, we are ready to support your project with technically sound, application-tested solutions

From Alloy B2 Short Radius Elbows to Hastelloy B2 Long Stub Ends, every fitting is designed to perform where failure is not an option.


Request Your ASTM B366 Hastelloy B2 ButtWeld Fittings Quote Today!
Drop us a line

We respects customer privacy and ensures absolute confidentiality of any information that is given to us.

We respect your privacy.