Incoloy 825 Buttweld Fittings Manufacturer & Supplier
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Midland Alloys Inc. is a trusted manufacturer and global supplier of Incoloy 825 Buttweld Fittings. Incoloy 825 is a high-performance nickel-iron-chromium alloy with added molybdenum, copper, and titanium, specifically engineered for superior corrosion resistance. It performs exceptionally well in acidic and oxidizing environments, including exposure to sulfuric and phosphoric acids. The 2.4858 Buttweld Fittings are known for their excellent corrosion resistance, long-term strength, thermal stability, and ease of fabrication and welding. Incoloy UNS N08825 is ideal for demanding applications and comes in both seamless and welded types. These fittings come in a wide range of shapes and dimensions, such as elbows, tees, reducers, and caps. These Incoloy ASTM B366 UNS N08825 fittings are extensively utilized in essential industries such as power generation, oil and gas, chemical processing and marine. Get high-quality ASTM B366 UNS NO8825 fittings at competitive pricing custom sizes and dimensions available.
Overview of Incoloy 825 Buttweld Fittings
Incoloy 825 buttweld fittings are built for demanding environments where strength and corrosion resistance matter most. Made from a high-performance nickel alloy these UNS N08825 Incoloy seamless fittings stand up to harsh chemicals, acids, and high temperatures without losing their shape or strength. They come in many forms, such as elbows, tees, reducers, caps and stub ends, to fit different piping setups. Each ANSI B16.9 Alloy Incoloy 825 butt weld fitting connects smoothly with piping systems, offering secure joints and reliable flow. These are available in both, standard sizes and custom options to match project needs. Due to the strong chemical composition of Incoloy 825, the fittings resist pitting, cracking and rust, even under constant exposure to aggressive media. It is used in industries like oil & gas, marine, and chemical processing. These fittings are designed for easy installation and a tight fit. Whether you’re looking for ASTM B366 Incoloy 825 buttweld fittings that function under pressure. As a trusted Incoloy 825 buttweld fittings supplier, we offer a full range to match your project specs including custom-built parts that meet your exact Alloy 825 pipe fittings dimension needs.
Benefits of Incoloy 825 Buttweld Fittings
Incoloy 825 buttweld fittings offer strong, reliable performance in harsh conditions. They handle heat, pressure, and corrosion without giving up strength.
- Corrosion Resistance: Resists damage from acids, seawater, and harsh chemicals ideal for tough industrial settings.
- Long-Term Strength: Incoloy ASTM B366 825 Fittings maintains its strength and shape even after years of exposure to heat and pressure.
- Weldability: Easy to weld with minimal risk of cracking, making fabrication and repairs simple.
- High-Temperature Strength: Performs well in high-heat environments without losing structural integrity.
- Dimensional Precision: Manufactured with tight tolerances for a perfect fit and leak-proof connections.
- Low Maintenance: Durable build means fewer breakdowns, less downtime, and long service life.
- Stress Corrosion Cracking Resistance: Incoloy Alloy 825 Buttweld Fittings handle pressure and thermal changes without sudden failure.
- Standard Compliance: These DIN 1.4876 Buttweld Pipe Fittings are made to ASTM B366 UNS N08825 and ASME B16.28, trusted by professionals worldwide.
Incoloy 825 Buttweld Fittings Specification
The following table outlines the ASTM B366 UNS N08825 specifications, including material grade, standards, dimensions, and available types.
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
Types of Incoloy 825 Buttweld Fitting
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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
Incoloy 825 is defined by its balanced composition of austenitic and ferritic phases, achieved through precise levels of nickel, chromium, molybdenum, iron and other elements. This composition significantly increases the alloy’s strength and resistance to localized corrosion, making it perfect for use in harsh industrial environments.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 825 | 0.05 max | 1.00 max | 0.5 max | 0.03 max | 1.50 – 3.00 | 22.00 min | 38.00 – 46.00 | 19.50 – 23.50 | 0.02 max | 0.06 – 1.20 |
The mechanical properties of Incoloy Alloy 825 Buttweld Fittings outline key values such as tensile strength, yield strength, elongation, and hardness, which are crucial for assessing its performance in demanding applications.
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 825 | 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
Different countries and standards organizations use varying nomenclature systems to identify the same alloy. Incoloy 825 Buttweld Fittings may be known under different designations globally, yet they maintain equivalent chemical composition and mechanical strength.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 825 | 2.4858 | N08825 | NCF 825 | NA 16 | ЭП703 | NFE30C20DUM | NiCr21Mo | XH38BT |
Incoloy Buttweld Fittings Grades We Offer
Incoloy 825 Buttweld Fittings Dimension
| 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 |
Incoloy 825 Buttweld Fittings Weight Chart
| Pipe Elbow Nominal Size | Pipe Elbow Outside Diameter Y | Wall Thickness T (Pipe Elbow Schedule) | 45 Deg. Elbow LR Centre to Face B | 45 Deg. Elbow LR Weight | 90 Deg. Elbow LR Centre to Face A | 90 Deg. Elbow LR Weight | 90 Deg. Elbow SR Centre to Face A | 90 Deg. Elbow SR Weight | ||
| mm | in | mm | mm | Schedule | mm | kg | mm | kg | mm | kg |
| 15 | 1/2” | 21.3 | 2.78 | STD | 15.9 | 0.04 | 38.1 | 0.08 | – | – |
| 3.73 | X.S | 15.9 | 0.05 | 38.1 | 0.10 | – | – | |||
| 20 | 3/4” | 26.7 | 2.87 | STD | 11.1 | 0.04 | 28.6 | 0.08 | – | – |
| 3.91 | X.S | 11.1 | 0.05 | 28.6 | 0.11 | – | – | |||
| 25 | 1” | 33.4 | 3.38 | STD | 22.2 | 0.09 | 38.1 | 0.15 | 25.4 | 0.11 |
| 4.55 | X.S | 22.2 | 0.11 | 38.1 | 0.19 | 25.4 | 0.14 | |||
| 32 | 11/4” | 42.2 | 3.56 | STD | 25.4 | 0.14 | 47.6 | 0.28 | 31.75 | 0.18 |
| 4.85 | X.S | 25.4 | 0.2 | 47.6 | 0.39 | 31.75 | 0.24 | |||
| 40 | 11/2” | 48.3 | 3.68 | STD | 28.6 | 0.2 | 57.1 | 0.4 | 38.1 | 0.26 |
| 5.08 | X.S | 28.6 | 0.25 | 57.1 | 0.5 | 38.1 | 0.35 | |||
| 50 | 2” | 60.3 | 3.91 | STD | 34.9 | 0.36 | 76.2 | 0.72 | 50.8 | 0.5 |
| 5.54 | X.S | 34.9 | 0.5 | 76.2 | 1.0 | 50.8 | 0.68 | |||
| 65 | 21/2” | 73.0 | 5.16 | STD | 44.4 | 0.73 | 95.2 | 1.46 | 63.5 | 0.95 |
| 7.01 | X.S | 44.4 | 0.91 | 95.2 | 1.82 | 63.5 | 1.27 | |||
| 80 | 3” | 88.9 | 5.49 | STD | 50.8 | 1.1 | 114.3 | 2.18 | 76.2 | 1.45 |
| 7.62 | X.S | 50.8 | 1.45 | 114.3 | 2.86 | 76.2 | 1.95 | |||
| 100 | 4” | 114.3 | 6.02 | STD | 63.5 | 2.1 | 152.4 | 4.2 | 101.6 | 2.8 |
| 8.56 | X.S | 63.5 | 2.9 | 152.4 | 5.7 | 101.6 | 3.9 | |||
| 125 | 5” | 141.3 | 6.65 | STD | 79.4 | 3.4 | 190.0 | 6.8 | 127.0 | 4.8 |
| 9.5 | X.S | 79.4 | 5.0 | 190.0 | 10.0 | 127.0 | 6.5 | |||
| 150 | 6” | 168.3 | 7.11 | STD | 95.2 | 5.1 | 229.0 | 10.1 | 152.4 | 6.8 |
| 10.97 | X.S | 95.2 | 7.7 | 229.0 | 15.3 | 152.4 | 10.2 | |||
| 200 | 8” | 219.1 | 8.18 | STD | 127.0 | 10.2 | 305.0 | 20.4 | 203.0 | 13.6 |
| 12.7 | X.S | 127.0 | 15.5 | 305.0 | 30.9 | 203.0 | 20.9 | |||
| 250 | 10” | 273.9 | 9.27 | STD | 159.0 | 18.1 | 381.0 | 36.1 | 254.0 | 24.1 |
| 12.7 | X.S | 159.0 | 24.4 | 381.0 | 48.8 | 254.0 | 32.5 | |||
| 300 | 12” | 323.9 | 9.52 | STD | 190.0 | 26.6 | 457.0 | 53.1 | 305.0 | 35.4 |
| 12.7 | X.S | 190.0 | 35.0 | 457.0 | 70.0 | 305.0 | 46.7 | |||
| 350 | 14” | 355.6 | 9.52 | STD | 222.0 | 34.1 | 533.0 | 68.1 | 356.0 | 45.4 |
| 12.7 | X.S | 222.0 | 45.0 | 533.0 | 90.0 | 356.0 | 60.0 | |||
| 400 | 16” | 406.4 | 9.52 | STD | 254.0 | 45.0 | 610.0 | 89.3 | 406.0 | 59.5 |
| 12.7 | X.S | 254.0 | 59.0 | 610.0 | 118.0 | 406.0 | 78.7 | |||
| 450 | 18” | 457.0 | 9.52 | STD | 286.0 | 56.5 | 686.0 | 113.0 | 457.0 | 75.6 |
| 12.7 | X.S | 286.0 | 75.0 | 686.0 | 150.0 | 457.0 | 100.0 | |||
| 500 | 20” | 508.0 | 9.52 | STD | 318.0 | 85.0 | 762.0 | 140.0 | 508.0 | 93.5 |
| 12.7 | X.S | 318.0 | 112.5 | 762.0 | 186.0 | 508.0 | 124.0 | |||
| 600 | 24” | 610.00 | 9.52 | STD | 381.0 | 101.5 | 914.0 | 203.0 | 610.0 | 135.0 |
| 12.7 | X.S | 381.0 | 134.5 | 914.0 | 269.0 | 610.0 | 179.0 | |||
Manufacturing Process of Incoloy 825 Welded Fittings
As a leading manufacturer of Incoloy 825 welded fittings, we provide customized sizes at an affordable price. To assure strength and quality we use a clear controlled method for each fitting. Starts with choosing the right Incoloy 825 alloy, known for its corrosion resistance. We use advanced machines to cut the material to size with high precision. The cut pieces are then heated to prepare them for shaping. In the forming stage, the material is molded into elbows, tees, reducers or other shapes. After that, welding joins the parts using skilled techniques that keep the structure strong. Heat treatment is used to relieve stress and improve durability. Finally, each fitting goes through strict inspection and testing to check strength, size, and finish.
Pipe
Cutting
Forming
Sizing
Heat Treatment
Pickling
Beveling
Polishing
Sand Blasting
Elbow
Inspection
Analytic
Marking
Packing & Shipping
Incoloy Alloy 825 Buttweld Fittings Industrial Application
Incoloy Alloy 825 buttweld fittings play a key role across many industries that deal with harsh conditions. In the oil and gas sector, they handle sour gas and offshore environments without corroding. Chemical plants rely on it because of its strong acids and high heat. Power stations use these fittings in boilers, and heat exchangers because they stay strong under stress. In construction, they support systems that need both strength and long-term reliability. Shipbuilders use it for seawater piping due to their resistance to salt and pressure. The automotive industry uses it in exhaust and fluid transfer systems. In food and textile processing, they perform well in steam, hot water, and cleaning agents. Their strength, corrosion resistance, and long service life make them a smart choice in tough settings.
Why Choose Us
Choose Midland Alloy because we stand for trust, quality, and proven capability. What sets us apart is our commitment to precision, service, and reliability at every step. As a leading manufacturer and supplier of Incoloy Buttweld Fittings, we deliver both standard and custom-made solutions to match your exact requirements. Our advanced manufacturing setup keeps quality high and leads times short. With global reach and solid supply chains, we ship across borders without delay. We also offer strong materials, fair prices, and full support, start to finish. We meet top industry standards and hold all required certifications. Across all industries, we are a preferred partner due to our timely delivery. International certifications also support our operations, guaranteeing our clients constant performance, quality and compliance.
FAQs –Nickel Alloy Buttweld Fittings
Due to its increased nickel and molybdenum content, Incoloy 825 provides improved corrosion resistance, particularly in acidic and reducing conditions, while Incoloy 800 delivers superior strength at high temperatures.
Incoloy 825 buttweld fittings are available in sizes from ½” to 48″ and shapes like elbows, tees, reducers, caps, and crosses in both seamless and welded types.
Yes. Seamless fittings are manufactured from a solid billet for greater strength and pressure resistance, whereas welded fittings are made from welded pipe which is usually more cost-effective for larger sizes.
