Inconel 601 Pipe Fittings are used when the thermal processing furnace, industrial oven and petrochemical reformers require fittings that can withstand high temperatures up to 1200 °C without scaling or distortion. Amardeep Steel Centre is a leading Inconel 601 fittings manufacturer and Inconel 601 fittings exporter who supplies the full range of ASTM B366 UNS N06601 fittings with precision small bore threaded elbow to large diameter buttweld reducer to heat treatment OEMs, refinery contractors and chemical plant EPC companies across the globe.
Inconel 601 Pipe Fittings are made from a nickel-chromium-aluminium alloy (UNS N06601) with a high nickel content of 58-63%, high chromium content of 21-25% and a controlled aluminium addition of 1.0-1.7%. Alloy 601 fittings are the best choice in service for industrial heat treatment and petrochemical reforming as the aluminium promotes the formation of a tight adherent Alumina scale which resists spalling under rapid thermal cycling conditions.
ASTM B366 UNS N06601 Pipe Fittings Specifications
Parameter | Details |
Specification | ASTM B366 / ASME SB366 |
UNS No. | N06601 |
Werkstoff No. | 2.4851 |
Size Range (BW) | 1/2" NB to 48" NB |
Schedules | SCH 10 to XXS |
Dimension Standards | ASME B16.9, MSS SP-43, ASME B16.11 |
End Finish | BE, PE, TE |
Form | Seamless & Welded |
MTC | EN 10204 3.1 |
Types of Inconel 601 Pipe Fittings
Fitting | Description | Standard |
Inconel 601 Elbow | 45°, 90°, 180° in LR and SR | ASME B16.9 |
Inconel 601 Tee | Equal and reducing configurations | ASME B16.9 |
Inconel 601 Reducer | Concentric & eccentric reducers | ASME B16.9 |
Inconel 601 Cap | End caps for pipe closure | ASME B16.9 |
Stub End | Loose/fixed flange assembly | MSS SP-43 |
Socket Weld Fittings | Elbows, tees, couplings SW type | ASME B16.11 |
Threaded Fittings | NPT/BSP elbows, tees, plugs | ASME B16.11 |
Looking for Inconel 601 Pipe Fittings Quickly? Contact us: info@amardeepsteel.com | Ready stock available in Mumbai |
ASTM B366 UNS N06601 Pipe Fitting Sizes
Inconel 601 Pipe Fittings Manufacturer in India Supplying Various Grades and Custom Sizes.
- Alloy 601 Seamless ButtWeld Fittings : 1/2 – 10 inch
- 601 Inconel Welded Pipe Fittings : 1/2″ – 48″
- 601 Inconel Alloy Fittings : ½” NB to 24″ NB
Inconel 601 Chemical Composition
Ni | Cr | Fe | Al | Mn (max) | C (max) |
58–63% | 21–25% | Balance | 1.0–1.7% | 1.0% | 0.10% |
Inconel 601 Mechanical Properties
UTS (MPa) | 0.2% YS (MPa) | Elongation (%) | Hardness (Rb max) |
550 min | 240 min | 30 min | 100 |
Equivalent Grades of Inconel 601
UNS | W.Nr. | BS | DIN | Common Name |
N06601 | 2.4851 | NA 49 | NiCr23Fe | Alloy 601 |
Dimensions of 601 Inconel Pipe Fittings
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 |
Applications of Inconel 601 Pipe Fittings
- Thermal processing equipment: annealing furnaces, carburizing retorts, heat treatment racks and baskets
- Petrochemical reformers: catalytic reformer and steam reformer tube connections, high-temperature reaction systems
- Radiant tubes: direct-fired and electrically heated radiant tube fittings in heat treatment furnaces
- Incinerators: flue gas handling piping where Inconel 601 buttweld fittings handle sulfur-lean, oxidising combustion atmospheres
- Gas turbines: combustion chamber liners and transition duct connections
Inconel 601 Buttweld Fittings Heat Treatment
Type | Condition | Temperature | Cooling | Time |
Stress Relieve | Annealed |
| Air | 0.5 – 1hr |
UNS N06601 Buttweld Fittings Thickness Chart
Product range and theoretical weights (kg) | |||||||||
DN | SCH 10S | SCH 80S | SCH 40S | ||||||
450 Elbow | Equal tee | 900 Elbow | 900 Elbow | 450 Elbow | Equal tee | 900 Elbow | 450 Elbow | Equal tee | |
200 | 5.33 | 15.65 | 10.20 | 33.11 | 16.56 | 28.12 | 21.54 | 10.77 | 20.91 |
250 | 9.75 | 26.46 | 18.15 | 51.71 | 25.86 | 49.90 | 38.56 | 19.27 | 35.38 |
50 | 0.25 | 0.85 | 0.50 | 0.91 | 0.59 | 1.59 | 0.70 | 0.4 | 1.28 |
65 | 0.48 | 1.41 | 0.85 | 1.81 | 0.99 | 3.13 | 1.40 | 0.77 | 2.19 |
80 | 0.63 | 1.77 | 1.25 | 2.97 | 1.50 | 4.45 | 2.20 | 1.08 | 3.31 |
90 | 0.75 | 2.67 | 1.70 | 4.00 | 2.00 | 5.44 | 2.83 | 1.42 | 4.08 |
10 | 0.02 | 0.05 | 0.03 | 0.06 | 0.04 | 0.09 | 0.03 | 0.02 | 0.03 |
8 | 0.01 | 0.03 | 0.02 | 0.04 | 0.03 | 0.07 | 0.03 | 0.02 | 0.06 |
100 | 1.08 | 3.46 | 2.10 | 6.18 | 2.81 | 7.71 | 4.47 | 2.09 | 5.27 |
300 | 13.62 | 39.46 | 25.80 | 79.38 | 39.69 | 83.91 | 59.42 | 29.71 | 62.14 |
40 | 0.17 | 0.68 | 0.30 | 0.51 | 0.29 | 1.02 | 0.40 | 0.23 | 0.86 |
150 | 2.72 | 8.07 | 5.45 | 16.32 | 8.16 | 13.61 | 10.89 | 5.44 | 10.99 |
15 | 0.03 | 0.09 | 0.06 | 0.10 | 0.05 | 0.14 | 0.08 | 0.04 | 0.10 |
20 | 0.03 | 0.13 | 0.07 | 0.11 | 0.05 | 0.20 | 0.08 | 0.04 | 0.17 |
25 | 0.08 | 0.28 | 0.14 | 0.22 | 0.14 | 0.38 | 0.15 | 0.11 | 0.29 |
32 | 0.11 | 0.49 | 0.23 | 0.40 | 0.23 | 0.68 | 0.26 | 0.17 | 0.59 |
Inconel Alloy 601 Pipe Fittings Thermal Conductivity
Temperature Range | Thermal | Linear of Thermal Expansion1 | Coefficients . 10-6 | Conductivity2 3 | |
°C | °F | W/mK | 1°C | 7°F | Btu/(hr/ft2/in/°F) |
93 | 200 | 10.7 | 12.8 | 7.1 | 6.3 |
538 | 1000 | 17,5 | 14 | 7.8 | 10.1 |
982 | 1800 | 25.3 | – | – | 14,6 |
21 | 70 | 9.9 | – | – | 5.7 |
-157 | -250 | 7.3 | – | – | 4.2 |
427 | 800 | 15.7 | 13.7 | 7,6 | 9.1 |
-129 | -200 | 7.4 | – | – | 4.3 |
-18 | 0 | 9.2 | – | – | 5.3 |
760 | 1400 | 20.8 | 15.3 | 8.5 | 12 |
204 | 400 | 12.6 | 13.1 | 7.3 | 7.3 |
871 | 1600 | 22.8 | 15.8 | 8.8 | 13.2 |
Inconel 601 Pipe Fittings Weight Chart
Discover Inconel 601 Pipe Fittings Stockist in India Offering precise weight chart for reference
NPS | KG | LBS |
2 | 0.73 | 1.6 |
2½ | 1.47 | 3.25 |
3 | 2.27 | 5 |
3½ | 3.06 | 6.75 |
4 | 4.08 | 9 |
5 | 6.8 | 15 |
6 | 11.11 | 24.5 |
8 | 22.68 | 50 |
1/2 | 0.08 | 0.18 |
3/4 | 0.09 | 0.19 |
1 | 0.18 | 0.4 |
1¼ | 0.27 | 0.6 |
1½ | 0.41 | 0.9 |
10 | 39.92 | 88 |
12 | 56.7 | 125 |
24 | 208.65 | 460 |
26 | 249.48 | 550 |
30 | 332.94 | 734 |
14 | 72.57 | 160 |
16 | 93.44 | 206 |
18 | 117.93 | 260 |
20 | 145.15 | 320 |
22 | 178.72 | 394 |
36 | 481.72 | 1062 |
Frequently Asked Questions
Q: What makes Inconel 601 Pipe Fittings suitable for furnace applications?
A: Inconel 601 contains 1–1.7% aluminium that forms a protective Al₂O₃ scale, providing outstanding oxidation and scaling resistance up to 1250 °C for continuous furnace component use.
Q: What is the ASTM standard for Inconel 601 Pipe Fittings?
A: Inconel 601 Pipe Fittings are manufactured per ASTM B366 UNS N06601, with dimensions per ASME B16.9 for buttweld fittings and ASME B16.11 for forged socket weld and threaded fittings.
Q: Is Inconel 601 suitable for oxidising and reducing atmospheres?
A: Inconel 601 performs well in both oxidising and mildly reducing atmospheres. However, it is not recommended for service in sulfur-bearing environments at elevated temperatures.
Q: What sizes are available for Inconel 601 buttweld fittings?
A: Inconel 601 buttweld fittings are available from 1/2" NB to 48" NB in schedules SCH 10 to XXS, as per ASME B16.9.
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