Hastelloy C276 Buttweld Fittings Manufacturer & Supplier
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Midland Alloys Inc. is a reputable Indian company that supplies buttweld fittings worldwide, offering unparalleled quality and engineering accuracy. A nickel chromium molybdenum alloy created especially for use in extremely corrosive conditions is used in the engineering of our Hastelloy C276 Buttweld Fittings. Outstanding resistance to oxidizing and reducing agent is provided by these ASTM B366 WPHC Hastelloy C276 pipe fittings. Elbows, tees, reducers, caps and stub end is just a few of the fitting configurations that are available to guarantee smooth flow control and pressure handling in piping systems. Chemical characteristics such as Ni 50.99% min, Cr 14.5-16.5%, Mo 15-17%, and a tensile strength of 690 MPa provide these fittings with performance and dependability in demanding applications.
Benefits of Hastelloy C276 Pipe Fittings UNS N10276
The versatility and performance of Hastelloy C276 Pipe Fittings UNS N10276 make them a preferred solution for industries requiring resistance to aggressive media. Even under stressful circumstances, these fittings provide outstanding formability, welding compatibility, and longevity.
- Perfect for the chemical industry, it is resistant to powerful oxidizers and reducing agents.
- Withstands high thermal loads without mechanical failure
- Seamless installation reduces leak risk and enhances structural integrity
- Fabrication-friendly due to excellent weldability
- Delivers consistent mechanical strength across all dimensions
- Performs reliably in chloride-rich and acidic conditions
- Offers long service life with reduced maintenance needs
- Available in Seamless, ERW, and Welded Hastelloy C276 Pipe Fittings
Hastelloy C276 Buttweld Fittings Specification

Seamless Butt Weld Fittings: 1/2" - 10" Welded Butt Weld Fittings: 1/2" - 48"

ASTM B366 / ASME SB366

Forge, Cast, Push, Press, etc.

90 Deg. Elbow, 45 Degree Elbow, LR/SR Elbow, Reducers, Tee, Cross, Bends, U bend, 180 Deg Bend, End Cap, Lap-joint Stub End

ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10

Plain End, Beveled End, Treaded

SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75

Seamless / Welded / Fabricated
Hastelloy C276 Buttweld Fittings Types
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Elbow (90°, 45°, Long Radius, Short Radius)Modifies the pipeline's flow direction at predetermined angles with regulated radii.
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Tee (Equal Tee, Reducing Tee)Adjusts the size of the main and branch lines to split or combine flow at 90° intersections.
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A reducer (eccentric or concentric)joins pipes with varying diameters while preserving flow offset or alignment.
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stub endIn non-permanent piping configurations, the stub end (long or short) connects to lap joint flanges for disassembly.
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Return Bends (180° bend)Redirects flow by 180 degrees, allowing the pipeline to reverse direction.
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Cross (Equal Cross, Reducing Cross)Provides multidirectional flow by joining four pipes at right angles.
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pipe capTo stop flow or pressure, an end cap also known as a pipe cap, seals the pipe's open end.
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Bend (3D, 5D, Custom Radius)This tool uses predefined or custom radii to gradually change the direction of pipelines.
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nipplesShort pipe segments called "nipples" (also known as "barrel" or "swage") are used to join two fittings or pipes.
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Collar / CouplingLinks two pipe sections in a straight run with a secure and leak-free joint.
Technical Details & Delivery Condition
| Grade | C | Mo | Mn | Si | Fe | P | S | Co | Cr | W | V | Ni |
| C276 | 0.010 | 12.5 – 14.5 | 0.50 | 0.08 | 2.00 – 6.00 | 0.02 | 0.02 | 2.5 | 20 – 22.5 | 2.5 – 3.5 | 0.35 | Bal |
| Grade | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| C276 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 45000 , MPa – 310 | Psi – 1,00,000 , MPa – 690 | 45 % |
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| Hastelloy C276 | N10276 | 2.4819 | – | NiCr21Mo14W | NW 6022 | – | – |
Hastelloy C276 Buttweld Fittings Grades We Offer
Hastelloy C276 Buttweld Fittings Dimensions Chart
| Nominal Pipe Size | Outside Diameter | 90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
| (inches) | – | Long Radius | Short Radius | Long Radius | Long Radius | |||
| (mm) | (inches) | Center to Face (inches) | Center to Face (inches) | Center to Face (inches) | Radius (inches) | Center to Center (inches) | Back to Face (inches) | |
| 1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
| 3/4 | 26.7 | 1.050 | 1 1/8 | 7/16 | 2 1/4 | 1 11/16 | ||
| 1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
| 1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
| 1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
| 2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
| 2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
| 3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
| 3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
| 4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
| 5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
| 6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
| 8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
| 10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
| 12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
Hastelloy C276 Buttweld Fittings Manufacturing Standards
| ASME B16.9 ASTM B366 Pipe Fittings | Factory-Made Wrought Buttwelding Fittings | Long Radius Elbows, Long Radius Reducing Elbows, Long Radius Returns, Short Radius Elbows, Short Radius 180-deg Rerurns, 3D elbows, Straight Tees, Straight Crosses, Reducing Outlet Tees, Reducing Outlet Crosses, Lap Joint Stub Ends, Caps, Reducers |
| ASME B16.28 | Short Radius Elbows, Short Radius 180-deg Returns | |
| MSS SP43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications | Long Radius Elbows, Straight and Reducing-on-the-Outlet Tees, Lap Joint Stub ends, caps, long radius 180 Degree returns, concentric reducers, eccentric reducers |
| Mss SP75 | Long Radius Elbows, 3R elbows, straight tees, reducing outlet tees, caps, reducers |
Difference DIN 2.4819 Hastelloy C276 Buttweld Fittings and Hastelloy C22 Buttweld Fittings
Manufacturing Process of Hastelloy C276 Buttweld Fittings
Pipe

Cutting

Forming

Sizing

Heat Treatment

Pickling

Beveling

Polishing

Sand Blasting

Elbow

Inspection

Analytic

Marking

Packing & Shipping
Applications of alloy Hastelloy C276 Buttweld Fittings
Alloy C276 Buttweld Fittings serve vital roles across high performance sectors. In pharmaceutical manufacturing they maintain purity standards while resisting corrosion from cleaning agents. Marine environments rely on their saltwater resistance. In pulp and paper mills, these fittings handle acidic bleaching agents. Pollution control units, especially flue-gas desulphurization systems, depend on their acid resistance. Chemical processing and desalination plants require their stability in variable pH environments. They are also used in high-temperature, high-pressure steam and gas systems in power plants where dependability is crucial.
Why choose us for Seamless Hastelloy C276 Buttweld Fittings
Midland Alloys Inc. is a leading Indian manufacturer and exporter of high-quality Hastelloy C276 Buttweld Fittings. We guarantee strict tolerances and adherence to ISO 9001:2015 and ASTM B366 quality standards. Customized solutions like cut-to-length sizing, unique surface finishes, and a range of schedule options are among the things we offer. With a clientele spanning the Gulf, Europe, Africa and Southeast Asia we precisely meet the demands of important projects. All products undergo in-house testing, come with Mill Test Certificates, and can be inspected by third-party agencies. We assure timely dispatch, careful packaging, and expert handling of both standard and bulk orders. All fittings are marked as per ASME SB366, and supplied with MTCs confirming chemical and mechanical conformance.
FAQs – Hastelloy C276 Buttweld Fittings
They conform to ASTM B366 / ASME SB366 specifications.
Yes, we offer Seamless, ERW, and Welded types.
Yes, we offer size customization as per your application and project needs.
Absolutely, we support third-party inspections as per client requirements.



