ASTM B366 Hastelloy B3 Buttweld Fittings are high-performance piping components designed for extreme corrosion resistance, especially in environments containing hydrochloric acid and other reducing chemicals. These fittings are widely used where standard stainless steels and nickel alloys fail due to aggressive chemical attack.
As one of the reliable ASTM B366 Hastelloy B3 Pipe Fittings Manufacturers and Suppliers, we manufacture and supply ASME SB366 Alloy B3 Buttweld Fittings that meet international quality standards. Our fittings are trusted across chemical processing, pharmaceuticals, fertilizers, oil & gas, and petrochemical industries in India and overseas.
What is ASTM B366 Hastelloy B3?
Hastelloy B3 is a nickel–molybdenum alloy developed to provide exceptional resistance to hydrochloric acid at all concentrations and temperatures. Compared to earlier B-grade alloys, B3 offers:
- Improved thermal stability
- Better resistance to grain boundary precipitation
- Enhanced fabrication and welding performance
The ASTM B366 specification covers wrought nickel alloy buttweld pipe fittings, ensuring uniformity in dimensions, strength, and corrosion resistance.
ASTM B366 Hastelloy B3 Buttweld Fittings – Key Features
- Excellent resistance to hydrochloric acid
- Superior performance in reducing environments
- High mechanical strength
- Improved metallurgical stability
- Good weldability and formability
- Long service life with low maintenance
These features make ASTM B366 Hastelloy B3 Buttweld Fittings ideal for critical and safety-sensitive piping systems.
ASME SB366 Alloy B3 Buttweld Fittings – Product Range
We manufacture a complete range of Hastelloy B3 Pipe Fittings as per ASTM B366 / ASME SB366 standards.
Our Product Range Includes:- UNS N010675 Pipe Elbow
- UNS N010675 Buttweld Elbow
- N010675 Alloy B3 90 Deg Elbow
- ANSI B16.9 Hastelloy B3 SR Elbow
- DIN 2.4600 Pipe Bend
- DIN 2.4600 Butt Weld Reducer
- Reducer (Concentric & Eccentric)
- Equal Tee
- INOX 2.4600 Buttweld Cross
- Hastelloy DIN 2.4600 Cross Exporter in India
- End Cap
- JIS B3 Dish Cap
- Long Stub End
- B366 Alloy B3 Union
- WNR 2.4600 Pipe Nipple
- Hastelloy B3 Collar Pipe Fittings
- WNR 2.4600 Seamless Pipe Fittings
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 B3 Buttweld Fittings – Specifications Chart
| Parameter | Details |
|---|---|
| Product Standard | ASTM B366 |
| Alternate Standards | ASME SB366 / ASME SB564 |
| Material Grade | Hastelloy B3 / Alloy B3 |
| UNS Number | UNS N010675 |
| Werkstoff Number | WNR 2.4600 |
| Product Type | Buttweld Pipe Fittings |
| Manufacturing Process | Hot Formed / Cold Formed |
| Size Range | ½” NB to 48” NB |
| Wall Thickness | SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS or as required |
| Fitting Types | Elbow, Tee, Reducer, Cross, Stub End, End Cap, Union, Pipe Nipple |
| Elbow Angles | 45°, 90° (LR & SR), 180° |
| Design Standards | ANSI B16.9 / DIN / JIS |
| Heat Treatment | Solution Annealed |
| Surface Finish | Pickled, Sand Blasted, Machined |
Chemical Composition of Hastelloy B3 (Typical)
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 27.0 – 32.0 |
| Iron (Fe) | ≤ 3.0 |
| Chromium (Cr) | ≤ 1.0 |
| Carbon (C) | ≤ 0.01 |
| Manganese (Mn) | ≤ 0.50 |
| Silicon (Si) | ≤ 0.10 |
Mechanical Properties of ASME SB366 Alloy B3
| Property | Value |
|---|---|
| Tensile Strength | ≥ 760 MPa |
| Yield Strength | ≥ 345 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 100 HRB |
DIN 2.4600 Butt Weld Reducer - Manufacturing Process – Practical Industry Experience
Our ASTM B366 Hastelloy B3 Buttweld Fittings are manufactured using a controlled process:
- Selection of certified raw material
- Hot or cold forming
- Precision machining
- Solution annealing
- Non-destructive testing
- Final dimensional inspection
This hands-on manufacturing approach ensures consistent quality and long-term reliability.
Why Choose Us as Your ASTM B366 Hastelloy B3 Pipe Fittings Manufacturer?
Customers choose us not just for products, but for technical reliability and long-term support.
- Proven expertise in ASTM B366 Hastelloy B3 Buttweld Fittings
- Strict quality inspection and traceability
- Competitive pricing
- Custom manufacturing capabilities
- Export-ready packaging
We serve both domestic and international markets as a dependable ASTM B366 Hastelloy B3 Pipe Fittings Manufacturer in India
Hastelloy DIN 2.4600 Cross Exporter in India - Global Supply & Export Capabilities
As a recognized Hastelloy DIN 2.4600 Cross Exporter in India, we export ASME SB366 Alloy B3 Buttweld Fittings worldwide, complying with international documentation and packaging standards.
ASTM B366 Hastelloy B3 Buttweld Fittings are the ideal choice for highly corrosive and reducing environments. With excellent resistance to hydrochloric acid, strong mechanical properties, and long service life, these fittings ensure safe and efficient plant operations.
If you are looking for a trusted ASTM B366 Hastelloy B3 Pipe Fittings Manufacturer and Supplier, we are ready to support your project with quality products, technical expertise, and dependable service.
Request Your ASTM B366 Hastelloy B3 ButtWeld Fittings Quote Today!
