ASTM B366 Hastelloy G35 Buttweld Fittings are widely used in industries where extreme corrosion resistance, mechanical strength, and long service life are critical. These fittings are manufactured using HASTELLOY® G-35® alloy, a nickel-based alloy known for its exceptional resistance to phosphoric acid, sulfuric acid, chlorides, and mixed acid environments.
As a reliable Hastelloy G35 manufacturer and supplier in India, we supply Hastelloy UNS N06035 fittings that meet international quality standards and perform consistently in real industrial conditions. Our approach is simple—manufacture for performance, not just compliance.
What Are ASTM B366 Hastelloy G35 Buttweld Fittings?
ASTM B366 Hastelloy G35 Buttweld Fittings are pipe fittings designed to be welded directly to pipes, creating a smooth, strong, and leak-free joint. These fittings are ideal for high-pressure, high-temperature, and highly corrosive applications.
Hastelloy G-35 (UNS N06035 / DIN 2.4643) is specifically engineered for environments where standard stainless steels and many nickel alloys fail due to corrosion.
About HASTELLOY® G-35® Alloy (UNS N06035)
HASTELLOY® G-35® alloy is a nickel–chromium–molybdenum alloy developed to provide exceptional resistance to localized corrosion, stress corrosion cracking, and general corrosion.
It is widely used in chemical processing systems where acid concentration and temperature vary, making corrosion control challenging.
Types of Hastelloy Alloy G-35 Buttweld Fittings We Supply
We offer a full range of ASTM B366 Hastelloy G35 Buttweld Fittings, manufactured with precision and consistent quality.
➤ Hastelloy G-35 Elbow Supplier
Used to change flow direction while maintaining smooth fluid movement.
- 45° Elbow
- 90° Long Radius Elbow
- Short Radius Elbow
➤ Hastelloy Alloy G-35 Reducer
Designed to connect pipes of different sizes.
- Concentric Reducer
- Eccentric Reducer
➤ Hastelloy Alloy G-35 Tee
Used for branching pipelines.
- Equal Tee
- Reducing Tee
➤ Other Available Fittings
- End Caps
- Stub Ends
- Crosses
- Custom-fabricated fittings as per drawings
Applications of ASTM B366 Hastelloy G35 Buttweld Fittings
Because of their corrosion resistance and strength, these fittings are widely used in:
- Chemical Processing Plants
- Phosphoric Acid Production Units
- Fertilizer Industry
- Oil & Gas Processing
- Petrochemical Refineries
- Power generation
- Marine & Offshore Installations
ASTM B366 Hastelloy G35 Fittings – Specifications
| Parameter | Details |
|---|---|
| Material Grade | Hastelloy G-35® |
| UNS Number | UNS N06035 |
| Werkstoff No. | DIN 2.4643 |
| Standard | ASTM B366 / ASME SB366 |
| Product Type | Buttweld Pipe Fittings |
| Fitting Types | Elbow, Tee, Reducer, Cap, Cross, Stub End |
| Size Range | ½” NB to 48” NB |
| Wall Thickness | SCH 10 to SCH XXS |
| Dimensional Standards | ASME B16.9, ASME B16.28 |
| Manufacturing Process | Hot Formed / Cold Formed |
| Heat Treatment | Solution Annealed |
| Surface Finish | Pickled, Shot Blasteds |
| Testing | PMI, NDT, Mechanical & Chemical Tests |
Chemical Composition Chart – Hastelloy G35 (UNS N06035)
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 32.0 – 35.0 |
| Molybdenum (Mo) | 7.0 – 8.5 |
| Iron (Fe) | 1.0 – 4.0 |
| Cobalt (Co) | Max 2.0 |
| Manganese (Mn) | Max 1.0 |
| Carbon (C) | Max 0.03 |
| Silicon (Si) | Max 0.5 |
| Phosphorus (P) | Max 0.03 |
| Sulfur (S) | Max 0.01 |
Mechanical Properties Chart – Hastelloy G35 Fittings
| Property | Value |
|---|---|
| Tensile Strength | ≥ 760 MPa |
| Yield Strength (0.2% Offset) | ≥ 345 MPa |
| Elongation | ≥ 40% |
| Hardness | Max 100 HRB |
| Density | 8.3 g/cm³ |
| Melting Range | 1370°C – 1400°C |
Why Choose Us as Your Hastelloy G35 Manufacturer and Supplier in India?
- Proven expertise in nickel alloy fittings
- Strict compliance with ASTM B366 standards
- Consistent quality and traceability
- Competitive pricing
- Reliable delivery timelines
- Technical support throughout the project lifecycle
Every Hastelloy UNS N06035 fitting is built to perform reliably in real operating conditions.
Get a Quote for Hastelloy G35 Buttweld Fittings
If you are looking for ASTM B366 Hastelloy G35 Buttweld Fittings, DIN 2.4643 Fittings, or Hastelloy Alloy G-35 Reducer and Tee, we are ready to support your project with experience- driven solutions.
Request Your ASTM B366 Hastelloy G35 ButtWeld Fittings Quote Today!

