ASTM B366 Hastelloy C276 Fittings are widely known for their outstanding corrosion resistance, durability, and ability to perform in extremely harsh environments. As one of the trusted Hastelloy C276 Pipe Fittings manufacturers & suppliers in India, we provide high-quality fittings made from genuine UNS N10276 alloy, tested and certified for the most demanding applications.
These fittings are designed to offer excellent protection against pitting, stress-corrosion cracking, and oxidizing or reducing media. Whether you need Hastelloy C276 Butt Weld Fittings, Hastelloy C276 Cross Pipe Fittings, Werkstoff Nr. 2.4819 Reducers, or ASTM B366 WPHC276 Elbows, we supply a complete product range that meets international quality standards.
Our goal is to create user-first, experience-based content that helps engineers, buyers, students, and industry professionals clearly understand what these fittings are, why they matter, and how they are used.
Table of Contents
- ➤ What Are ASTM B366 Hastelloy C276 Fittings?
- ➤ Key Features & Benefits of Hastelloy C276 Fittings
- ➤ Types of ASTM B366 Hastelloy C276 Fittings Offered
- ➤ ASTM B366 Hastelloy C276 Buttweld Fittings – Standards and Specifications
- ➤ Schedule and Size Chart – Hastelloy C276 Buttweld Fittings
- ➤ Chemical Composition – Hastelloy C276 UNS N10276 Fittings
- ➤ Mechanical Properties of Hastelloy C276 Buttweld Fittings
- ➤ Physical Properties – ASTM B366 Hastelloy C276 Buttweld Fittings
- ➤ Applications of Hastelloy C276 Pipe Fittings
- ➤ Why Choose Solitaire Fittings as Your Hastelloy C276 Pipe Fittings Manufacturer?
What Are ASTM B366 Hastelloy C276 Fittings?
ASTM B366 refers to the standard specification for wrought nickel and nickel-alloy butt-welded fittings. The Hastelloy C276 grade, also known as UNS N10276 or Werkstoff Nr. 2.4819, is one of the most corrosion-resistant nickel-molybdenum-chromium alloys available today.
These Hastelloy C276 Fittings are developed for applications where maximum corrosion resistance and mechanical strength are required—especially in environments where other metals fail.
Key Features & Benefits of Hastelloy C276 Fittings
- Best-in-Class Corrosion Resistance: Hastelloy C276 handles both oxidizing and reducing chemicals, making it highly suitable for environments where many other materials fail.
- Excellent High-Temperature Stability: Provides reliable performance in applications that involve high temperatures, heat cycles, and thermal shock.
- Superior Mechanical Strength: These fittings maintain strength and toughness even in extreme industrial conditions.
- Easy to Weld & Fabricate: C276 is easier to weld than many nickel alloys, reducing installation time and costs. Our Hastelloy C276 butt weld fittings are designed for leak-proof, long-term performance.
- Long Service Life: The alloy’s high durability ensures long-term reliability and reduced maintenance, helping industries avoid shutdowns.
Types of ASTM B366 Hastelloy C276 Fittings Offered
We deliver a full range of Hastelloy C276 grade buttweld pipe fittings in multiple sizes, thicknesses, and pressure ratings. Each fitting undergoes strict quality checks, ensuring long life and excellent performance.
➤ Hastelloy C276 Elbows
Elbows are essential for changing the direction of flow in a pipeline system.
- ASTM B366 Hastelloy Buttweld Elbow
- ASTM B366 WPHC276 Elbow (Manufacturer in India)
- ASTM B366 Hastelloy Buttweld Elbow
- Hastelloy C276 Reducing Elbow
Used in chemical plants, offshore units, and high-temperature installations requiring smooth flow direction change.
➤ Hastelloy C276 Reducers
Reducers help connect pipes of different diameters.
- Concentric Reducer
- Eccentric Reducer
- Werkstoff Nr. 2.4819 Reducer
Reducers made from C276 alloy are extremely durable and prevent turbulence and pressure loss.
➤ Hastelloy C276 Tees & Crosses
Tees:- Equal Tee
- Reducing Tee
- Used to combine or split flow
- Hastelloy C276 Cross Pipe Fittings
- Hastelloy C276 Equal Cross
Cross fittings are used in applications requiring four-way flow distribution.
➤ ASME SB366 Alloy C276 Long Stub End
- Connects pipes of different diameters.
- Available in concentric and Hastelloy C276 Eccentric Reducer types.
➤ ANSI B16.9 Hastelloy C276 Pipe Cap
- Used to seal the end of a pipeline.
- Protects the pipe from damage, contamination, or leaks.
➤ Werkstoff Nr. 2.4819 Stub End
- Designed for flanged joints.
- Works as an alternative to welded flanges.
➤ Hastelloy C276 Stub End Supplier
- Solitaire Fittings supplies both short and long stub ends.
- Designed for cost-effective piping solutions.
➤ UNS N10276 Seamless Fittings
- Manufactured from seamless pipes for higher strength.
- Ideal for high-pressure and critical applications.
Advantages of Hastelloy C276 Buttweld Fittings
- Outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking.
- Long service life due to durability in both oxidizing and reducing media.
- Smooth flow inside pipes, reducing pressure loss.
- Easy to install and maintain.
- Suitable for both low and high-pressure systems.
Applications of Hastelloy C276 Pipe Fittings
Hastelloy C276 Buttweld Fittings are used across multiple sectors:
- Oil & Gas Industry – Sour gas service, pipelines for transport and refining.
- Chemical Industry – Resistant to acids, alkalis, and corrosive solutions.
- Power Plants – Flue-gas desulfurization, scrubbers, and heat exchangers.
- Pharmaceutical & Food Processing – Ensures hygiene and safety in piping systems.
- Marine & Offshore – Structural piping and high-strength applications.
ASTM B366 Hastelloy C276 Buttweld Fittings – Standards and Specifications
Our fittings are manufactured in accordance with the ASTM B366 Hastelloy C276 Buttweld Fittings standard, ensuring international quality compliance.
Specifications- Standard: ASTM B366 / ASME SB366
- Grade: WPHC276 (UNS N10276 / Werkstoff Nr. 2.4819)
- Dimensions: ASME/ANSI B16.9, B16.28, MSS-SP-43
- Size Range: ½” NB to 48” NB
- Thickness: Sch 10 to Sch XXS
- Types: Seamless, Welded, Fabricated
Schedule and Size Chart – Hastelloy C276 Buttweld Fittings
| Schedule Number | Nominal Pipe Size (NPS) | Outside Diameter (OD) (inches) | Wall Thickness (WT) (inches) | Inside Diameter (ID) (inches) |
|---|---|---|---|---|
| SCH 5 | 1/2" – 24" | 0.840 – 24.000 | 0.065 – 0.500 | 0.710 – 23.000 |
| SCH 10 | 1/2" – 36" | 0.840 – 36.000 | 0.083 – 0.500 | 0.674 – 35.000 |
| SCH 20 | 1/2" – 24" | 0.840 – 24.000 | 0.109 – 0.688 | 0.622 – 22.624 |
| SCH 40 / STD | 1/2" – 36" | 0.840 – 36.000 | 0.109 – 0.875 | 0.622 – 34.250 |
| SCH 80 / XS | 1/2" – 30" | 0.840 – 30.000 | 0.147 – 1.000 | 0.546 – 28.000 |
| SCH 160 | 1/2" – 24" | 0.840 – 24.000 | 0.188 – 1.500 | 0.464 – 21.000 |
| SCH XXS | 1/2" – 12" | 0.840 – 12.750 | 0.294 – 1.875 | 0.252 – 9.000 |
Mechanical Properties of Hastelloy C276 Buttweld Fittings
| Property | Value (Typical) |
|---|---|
| Tensile Strength (MPa) | 690 MPa (minimum) |
| Yield Strength (0.2% Proof) | 283 MPa (minimum) |
| Elongation (%) | 40% (minimum) |
| Hardness (Rockwell B) | 100 HRB max |
| Modulus of Elasticity | 205 GPa (29,700 ksi) |
Chemical Composition – Hastelloy C276 UNS N10276 Fittings
| Element | % Composition (Typical) |
|---|---|
| Nickel (Ni) | Balance (57 Min) |
| Chromium (Cr) | 14.5 – 16.5 |
| Molybdenum (Mo) | 15.0 – 17.0 |
| Iron (Fe) | 4.0 – 7.0 |
| Tungsten (W) | 3.0 – 4.5 |
| Cobalt (Co) | ≤ 2.5 |
| Manganese (Mn) | ≤ 1.0 |
| Carbon (C) | ≤ 0.01 |
| Silicon (Si) | ≤ 0.08 |
| Vanadium (V) | ≤ 0.35 |
Physical Properties – ASTM B366 Hastelloy C276 Buttweld Fittings
| Property | Value |
|---|---|
| Density | 8.89 g/cm³ |
| Melting Point | 1325 – 1370 °C |
| Thermal Conductivity | 10.2 W/m·K (at 100°C) |
| Specific Heat Capacity | 427 J/kg·K (0–100 °C) |
| Electrical Resistivity | 1.29 µΩ·m (at 20°C) |
| Modulus of Elasticity | 205 GPa |
| Coefficient of Expansion (20–100°C) | 11.2 µm/m·°C |
Why Choose Solitaire Fittings as Your Hastelloy C276 Pipe Fittings Manufacturer?
- Quality Assurance: Each fitting undergoes strict testing.
- Wide Range: From Hastelloy C276 Reducer to Werkstoff Nr. 2.4819 Stub End, we provide every type.
- Customization: Sizes and shapes can be made as per project requirements.
- Global Supply Network: Reliable exports to over 60+ countries.
- Competitive Pricing: Affordable without compromising quality.
Solitaire Fittings – Your Trusted Hastelloy C276 Stub End Supplier
As a reputed Hastelloy C276 Stub End Supplier, Solitaire Fittings ensures that all products meet customer expectations and international standards. Whether you need ANSI B16.9 Hastelloy C276 Pipe Cap, UNS N10276 Seamless Fittings, or ASME SB366 Hastelloy C276 Pipe Bend, we have the expertise and inventory to deliver on time.
Request Your Hastelloy C276 Buttweld Fittings Quote Today!
