Home / Inconel Pipe Fittings / Incoloy 825 Pipe Fittings
Incoloy 825 is a nickel-iron-chromium alloy that contains molybdenum, copper, and titanium. It was developed to provide excellent corrosion resistance in oxidizing & reducing environments. Nickel Alloy 825 Pipe Fittings are a piping component made from this alloy. They connect pipes, valves & other equipment in a piping system.
The primary benefit of Incoloy 825 Pipe Fittings is their superior corrosion resistance. They resist various corrosive media, including sulfuric and phosphoric acids, alkalis, and seawater. Incoloy 825 pipe fittings are also resistant to stress corrosion cracking and pitting, making them an ideal choice for harsh environments. Alloy 825 Pipe Fittings offer excellent resistance to high-temperature oxidation & good resistance to low-temperature impacts and boron embrittlement.
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Incoloy 825 Fittings are used in various industries where corrosion resistance is critical. They are commonly found in chemical processing, oil and gas, power generation, marine, and nuclear industries. Applications include heat exchangers, pickling equipment, oil and gas processing equipment, marine exhaust systems & nuclear control rod release mechanisms. The high-quality inconel products we provide at Global Steel include Inconel 718 Pipe Fittings, Inconel 625 Pipe Fittings and more.
JIS NCF 825 Pipe Fittings have several beneficial properties that make them ideal for harsh environments. They have high tensile strength and excellent resistance to oxidation and carburization at elevated temperatures. Incoloy 825 fittings also have good weldability & can be machined using standard methods. ASME B16.9 825 Pipe Fittings have low magnetic permeability, making them suitable for electronic and magnetic applications. We provide an extensive range of products, such as Nickel Alloy 201 Pipe Fittings, Alloy Steel A182 F91 Flanges and more.
Incoloy Alloy 825 Pipe Fittings are corrosion-resistant nickel-iron-chromium alloy components with molybdenum, copper & titanium additives. ASTM B366 825 Pipe Fittings exhibit robust mechanical properties & excellent resistance to corrosive environments & making them suitable for high-temperature and aggressive applications.
What are the temperature limitations of Incoloy 825 Pipe Fittings?
Incoloy 825 pipe fittings have excellent high-temperature stability. They can withstand elevated temperatures up to approximately 550°C (1022°F) without significantly losing mechanical properties. It is suitable for applications involving hot corrosive fluids or processes requiring resistance to oxidation and thermal stability.
What are the machinability characteristics of Incoloy 825 Pipe Fittings?
Incoloy 825 pipe fittings have good machinability characteristics. However, due to tough constituents in the alloy, machining operations may require specific techniques and tools. Carbide tools and slow speeds are typically recommended to achieve optimum results.
What are the available sizes and dimensions of Incoloy 825 Pipe Fittings?
Incoloy 825 pipe fittings are available in various sizes and dimensions to accommodate different piping requirements. Common sizes range from ½ to 24 inches, with varying wall thicknesses and pressure ratings. The specific sizes & dimensions can vary among manufacturers, but they typically adhere to industry standards such as ASME B16.9 for dimensions and ASME B16.11 for socket weld and threaded fittings.
| Standards | ASTM AB366 / ASME SB366 |
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Size |
|
| Type | Seamless / Welded / Fabricated |
| Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |

| STANDARD | WERKSTOFF NR. | UNS | AFNOR | GOST | JIS | BS | EN | OR |
| Incoloy 825 | 2.4858 | N08825 | NC 21 FeDU | XH38BT | NCF 825 | NA 16 | NiCr21Mo | ЭП703 |
| ASME B16.9 ASTM B366 825 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 |






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We offer These Incoloy 825 Buttweld Pipe Fittings as per DIN, ISO, JIS or ANSI Standard.
| 1/2 TO 2-1/2 | +1/16 | ±1/32 | Not less than 87-1/2% of Normal Thickness | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 12 to 4 | 1/32 | 1/16 |
| -1/32 | 5 to 8 | 1/16 | 1/8 | |||||||||
| 3 TO 3-1/2 | ±1/16 | ±1/16 | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 10 to 12 | 3/32 | 3/16 | |
| 4 | ±1/16 | ±1/16 | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 14 to 16 | 3/32 | 1/4 | |
| 5 TO 8 | +1/32 | ±1/16 | ±1/16 | ±1/16 | ±1/4 | ±1/4 | ±1/4 | ±1/32 | 18 to 24 | 1/8 | 3/8 | |
| -1/16 | ||||||||||||
| 10 TO 18 | +1/16 | ±1/8 | ±3/32 | ±3/32 | ±1/4 | ±3/8 | ±1/4 | ±1/16 | All dimensions are in inches | |||
| -1/8 | ||||||||||||
| 20 TO 24 | +1/4 | ±3/32 | ±3/32 | ±3/32 | ±1/4 | ±3/8 | ±1/4 | ±1/16 | ||||
| -3/32 | ||||||||||||
| Grade | Cr | Fe | Ni | C | Mn | Cu | Si | S |
| Incoloy 825 | 19.5 – 23.5 | 1.0 max | 38.0 – 46.0 | 0.05 max | 1.0 max | 1.5 – 3.0 | 0.5 max | 0.03 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
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