Incoloy 800 Pipe Fittings (also known as Inconel 800 pipe fittings worldwide in procurement) are the first alloys in the 800 series of high-temperature alloys developed for continuous service at elevated temperatures. Amardeep Steel Centre offers and produces ASTM B366 Incoloy 800 fittings in all dimensions, for heat exchanger OEMs, furnace builders and petrochemical plant contractors. Our Incoloy 800 fittings manufacturer facility is equipped with heat-forming ability, PMI verification, third-party inspection acceptance with all major classification societies in-house.
What Are Inconel 800 / Incoloy 800 Pipe Fittings?
Inconel 800 Pipe Fittings are produced using a NiFeCr alloy containing 30–35% nickel, 19–23% chromium and iron as a balance, the composition of which is controlled with aluminium and titanium. The alloy is resistant to oxidation, carburization and nitriding atmospheres in the range from 593 to 900 °C, and has good forming and welding properties due to its austenitic structure. The baseline grade of the 800 series, UNS N08800 fittings are used in applications that do not exceed 593 °C in prolonged exposure.
ASTM B366 UNS N08800 Pipe Fittings Specifications
Parameter | Details |
Specification | ASTM B366 / ASME SB366 |
UNS No. | N08800 |
Werkstoff No. | 1.4876 |
Size Range (BW) | 1/2" NB to 48" NB |
Schedules | SCH 10 to XXS |
Dimension Standards | ASME B16.9, ASME B16.11, MSS SP-43 |
Form | Seamless & Welded |
End Finish | BE, PE, TE |
MTC | EN 10204 3.1 |
Types of Incoloy 800 Pipe Fittings
Fitting | Description | Standard |
Incoloy 800 Elbow | 45 / 90 LR & SR; 180 return bend | ASME B16.9 |
Incoloy 800 Tee | Equal and reducing tees | ASME B16.9 |
Incoloy 800 Reducer | Concentric & eccentric reducers | ASME B16.9 |
End Cap | Pipe closure caps | ASME B16.9 |
Stub End | Lap joint stub ends | MSS SP-43 |
Socket Weld Fittings | Elbows, tees, couplings | ASME B16.11 |
Threaded Fittings | NPT elbows, tees, plugs, unions | ASME B16.11 |
Incoloy 800 Chemical Composition
Ni | Cr | Fe (min) | Al | Ti | C (max) |
30-35% | 19-23% | 39.5% | 0.15-0.60% | 0.15-0.60% | 0.10% |
Incoloy 800 Mechanical Properties
UTS (MPa) | 0.2% YS (MPa) | Elongation (%) | Hardness (Rb max) |
517 min | 207 min | 30 min | 90 |
Inconel 800 Pipe Fittings - Elbow Size Chart
Type | Welded Fittings | Seamless Fittings |
Tees | Upto 36" | Upto 24" |
Elbows | Upto 42" | Upto 24" |
Cross Fittings | Upto 36" | Upto 8" |
Reducers | Upto 48" | Upto 24" |
Return Bends | - | Upto 8" |
End Caps | - | Upto 24" |
Swage Nipple | - | Upto 4" |
Inconel 800 Pipe Fittings - Reducer Dimension Chart
OD (mm) | NPS (inches) | Reduced From (inches) | Concentric & Eccentric Length (inches) | Reduced To (inches) |
21.3 | 0.840 | 1/2 | 1-1/2 | 1/4 |
21.3 | 0.840 | 1/2 | 1-1/2 | 3/8 |
26.7 | 1.050 | 3/4 | 2 | 3/8 |
26.7 | 1.050 | 3/4 | 2 | 1/2 |
33.4 | 1.315 | 1 | 2 | 3/8 |
33.4 | 1.315 | 1 | 2 | 1/2 |
33.4 | 1.315 | 1 | 2 | 3/4 |
42.2 | 1.660 | 1-1/4 | 2 | 1/2 |
42.2 | 1.660 | 1-1/4 | 2 | 3/4 |
42.2 | 1.660 | 1-1/4 | 2 | 1 |
48.3 | 1.900 | 1-1/2 | 2-1/2 | 1/2 |
48.3 | 1.900 | 1-1/2 | 2-1/2 | 3/4 |
48.3 | 1.900 | 1-1/2 | 2-1/2 | 1 |
48.3 | 1.900 | 1-1/2 | 2-1/2 | 1-1/4 |
60.3 | 2.375 | 2 | 3 | 3/4 |
60.3 | 2.375 | 2 | 3 | 1 |
60.3 | 2.375 | 2 | 3 | 1-1/4 |
60.3 | 2.375 | 2 | 3 | 1-1/2 |
73.0 | 2.875 | 2-1/2 | 3-1/2 | 1 |
73.0 | 2.875 | 2-1/2 | 3-1/2 | 1-1/4 |
73.0 | 2.875 | 2-1/2 | 3-1/2 | 1-1/2 |
73.0 | 2.875 | 2-1/2 | 3-1/2 | 2 |
88.9 | 3.500 | 3 | 3-1/2 | 1 |
88.9 | 3.500 | 3 | 3-1/2 | 1-1/2 |
88.9 | 3.500 | 3 | 3-1/2 | 2 |
88.9 | 3.500 | 3 | 3-1/2 | 2-1/2 |
101.6 | 4.000 | 3-1/2 | 4 | 1-1/4 |
101.6 | 4.000 | 3-1/2 | 4 | 1-1/2 |
101.6 | 4.000 | 3-1/2 | 4 | 2 |
101.6 | 4.000 | 3-1/2 | 4 | 2-1/2 |
101.6 | 4.000 | 3-1/2 | 4 | 3 |
114.3 | 4.500 | 4 | 4 | 1-1/2 |
114.3 | 4.500 | 4 | 4 | 2 |
114.3 | 4.500 | 4 | 4 | 2-1/2 |
114.3 | 4.500 | 4 | 4 | 3 |
114.3 | 4.500 | 4 | 4 | 3-1/2 |
141.3 | 5.563 | 5 | 5 | 2 |
141.3 | 5.563 | 5 | 5 | 2-1/2 |
141.3 | 5.563 | 5 | 5 | 3 |
141.3 | 5.563 | 5 | 5 | 3-1/2 |
141.3 | 5.563 | 5 | 5 | 4 |
Inconel 800 Pipe Fittings - Tee Schedule Chart (ASME B16.9)
DN | Sch 10S Concentric Reducer | Sch 10S Eccentric Reducer | Sch 10S Reducing/Unequal Tee | Sch 40S Concentric Reducer | Sch 40S Eccentric Reducer | Sch 40S Reducing/Unequal Tee |
40x25 | 0.19 | 0.19 | 0.60 | 0.26 | 0.26 | 0.76 |
50x25 | 0.28 | 0.28 | 0.73 | 0.40 | 0.40 | 1.10 |
50x40 | 0.31 | 0.31 | 0.76 | 0.45 | 0.45 | 1.15 |
80x50 | 0.55 | 0.55 | 1.56 | 1.00 | 1.00 | 2.91 |
100x50 | 0.78 | 0.78 | 2.94 | 1.50 | 1.50 | 4.48 |
100x80 | 0.87 | 0.87 | 3.04 | 1.74 | 1.74 | 4.64 |
150x80 | 1.82 | 1.82 | 6.86 | 3.95 | 3.95 | 9.68 |
150x100 | 1.96 | 1.96 | 7.10 | 4.07 | 4.07 | 11.94 |
200x100 | 3.01 | 3.01 | 13.46 | 6.55 | 6.55 | 17.98 |
200x150 | 3.19 | 3.19 | 14.08 | 6.74 | 6.74 | 18.82 |
Inconel 800 Pipe Fittings - Stub End Tolerance Chart
ASME B16.9 NPS | ID at End | OD at Bevel | Wall Thickness T | Overall Length H | Centre-to-End A, C, B | Overall Length F |
1/2 to 2-1/2 | +0.06 / -0.03 | +0.06 | Not less than 87.5% of nominal | +/-0.06 | +/-0.06 | +/-0.12 |
3 to 3-1/2 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.12 |
4 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.12 |
5 to 8 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.06 | +/-0.25 |
10 to 18 | +/-0.12 | +0.16 / -0.12 | +/-0.09 | +/-0.09 | +/-0.09 | +/-0.25 |
20 to 24 | +/-0.19 | +0.25 / -0.19 | +/-0.09 | +/-0.09 | +/-0.09 | +/-0.25 |
26 to 30 | +/-0.19 | +0.25 / -0.19 | +/-0.19 | +/-0.12 | +/-0.19 | +/-0.38 |
32 to 48 | +/-0.19 | +0.25 / -0.19 | +/-0.19 | +/-0.19 | +/-0.19 | +/-0.38 |
Inconel 800 Pipe Fittings - Pressure Rating Chart (psig)
Temperature (F) | Temperature (C) | Class 150 | Class 300 (1/4-1") | Class 300 (11/4-2") | Class 300 (21/2-3") |
-20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
200 | 93 | 265 | 1785 | 1350 | 910 |
250 | 121 | 225 | 1575 | 1200 | 825 |
300 | 149 | 185 | 1360 | 1050 | 735 |
350 | 177 | 150 | 1150 | 900 | 650 |
400 | 204 | - | 935 | 750 | 560 |
450 | 232 | - | 725 | 600 | 475 |
500 | 260 | - | 510 | 450 | 385 |
550 | 288 | - | 300 | 300 | 300 |
Difference Between Incoloy 800, 800H and 800HT
Property | Incoloy 800 | Incoloy 800H | Incoloy 800HT |
UNS No. | N08800 | N08810 | N08811 |
Carbon (%) | <= 0.10 | 0.05-0.10 | 0.06-0.10 |
Al + Ti (%) | 0.30-1.20 | 0.30-1.20 | 0.85-1.20 (controlled) |
Max Service Temp. | ~900 C | ~1000 C | ~1100 C |
Best Feature | Oxidation resistance | Creep strength | Max long-term creep rupture |
Applications of Incoloy 800 Pipe Fittings
- Heat exchangers: shell-and-tube units, heat transfer piping in chemical plants
- Industrial furnaces: radiant tubes, muffle liners, retort connections using Incoloy 800 pipe fittings supplier grade
- Chemical processing: superheater piping, reaction vessel connections, ethylene cracker piping
- Power generation: steam superheaters, reheaters, boiler connections in conventional power plants
- Pollution control: flue gas desulfurisation piping systems
|
Get a Quote on Incoloy 800 Pipe Fittings Email info@amardeepsteel.com - Ready stock in Mumbai |
Frequently Asked Questions
Q: What is the difference between Inconel 800 and Incoloy 800?
A: Inconel 800 and Incoloy 800 refer to the same alloy - UNS N08800. The Inconel trademark (now Incoloy) is a registered name for Special Metals' nickel-iron-chromium alloys. Both designations are used interchangeably in commerce.
Q: What is Incoloy 800 used for in pipe fittings applications?
A: Incoloy 800 pipe fittings are used in heat exchangers, furnace components, chemical processing systems, and power plant steam piping where oxidation and carburization resistance at 593-900 C are required.
Q: What standard governs Incoloy 800 Pipe Fittings?
A: Incoloy 800 Pipe Fittings are manufactured per ASTM B366 UNS N08800, dimensioned to ASME B16.9 (buttweld) and ASME B16.11 (forged), with EN 10204 3.1 MTCs available.
Q: What is the carbon content difference between Incoloy 800, 800H, and 800HT?
A: Incoloy 800 has C <= 0.10%; Incoloy 800H specifies C = 0.05-0.10% for creep strength; Incoloy 800HT controls C at 0.06-0.10% with controlled Al+Ti for maximum long-term creep resistance.
Related Products
|
Send Your Incoloy 800 Fittings RFQ |
