INCONEL 601 FASTENERS | ULTIMATE GUIDE
Ananka Fasteners is a premier manufacturer and supplier of high-performance Inconel 601 Fasteners (UNS N06601 / W.Nr. 2.4851). Distinguished by its addition of aluminum, Alloy 601 provides outstanding resistance to high-temperature oxidation up to 2200°F (1200°C), making these fasteners the definitive choice for thermal processing, chemical plants, and severe industrial environments.
■ Complete Range of Inconel 601 Fasteners
We manufacture a complete, fully traceable range of Alloy 601 fastening components. Click on specific categories below for detailed dimension tables and individual specifications (Links updating soon).
| Bolts & Screws | Nuts & Washers | Studs & Rods |
|---|---|---|
| Hex Bolts / Heavy Hex Bolts | Hex Nuts / Heavy Hex Nuts | Fully Threaded Studs |
| Socket Head Cap Screws | Flange Nuts / Lock Nuts | Double Ended Studs |
| Flange Bolts / Carriage Bolts | Flat Washers / Spring Washers | Threaded Rods / Tie Rods |
| Countersunk Screws / Set Screws | Dome Nuts / Square Nuts | Custom CNC Machined Studs |
■ Inconel Alloy 601 Material Specifications
| Material Equivalent Grades | UNS N06601 | W.Nr. 2.4851 | Alloy 601 | NiCr23Fe | AFNOR NC23FeA |
|---|---|
| Standard Specifications | ASTM B166 / ASME SB166 (Rod, Bar) ASTM F467 / ASTM F468 (Nonferrous Nuts & Bolts) |
| Size Range | Metric: M3 to M60 | Imperial: 1/4" to 4" (Custom sizes upon request) |
| Thread Types | Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF |
| Dimensions Standards | DIN, ISO, UNI, CSN, EN, BS, ANSI/ASME (e.g., ASME B18.2.1, B18.2.2) |
■ Chemical Composition of Alloy 601
The tightly controlled addition of Aluminum (Al) in conjunction with high Chromium (Cr) gives Alloy 601 its exceptional resistance to oxidation and spalling.
| Ni (Nickel) | Cr (Chromium) | Fe (Iron) | Al (Aluminum) | C (Carbon) | Mn (Manganese) | S (Sulfur) | Cu (Copper) |
|---|---|---|---|---|---|---|---|
| 58.0 - 63.0% | 21.0 - 25.0% | Balance | 1.0 - 1.7% | 0.10% Max | 1.0% Max | 0.015% Max | 1.0% Max |
■ Mechanical & Physical Properties
| Tensile Strength (Min) | Yield Strength 0.2% Offset (Min) | Elongation (%) | Density | Melting Point |
|---|---|---|---|---|
| 550 MPa (80 ksi) | 205 MPa (30 ksi) | 30% Min | 8.11 g/cm³ | 1360 - 1411°C (2480 - 2571°F) |
■ Standard Product Pages
Explore our dedicated standard pages for specific fastener categories to view detailed dimensions, availability, and specific technical data:
- Inconel 601 Bolts: Comprehensive range of heavy hex, flange, and socket head configurations.
- Inconel 601 Nuts: View our dedicated page for standard hex, heavy hex, and prevailing torque locknuts.
- Inconel 601 Studs: Fully threaded, double-ended, and custom machined tie rods for high-pressure joints.
- Inconel 601 Washer: Comprehensive range of Washer.
■ Torque & Installation Guidelines (UNC Threads)
To proactively counteract galling and achieve an accurate, highly predictable tension-to-torque relationship, the application of engineered high-temperature nickel-compatible anti-seize lubricants is functionally mandatory during assembly.
| Nominal Diameter | Threads Per Inch (UNC) | Target Torque – Dry (ft-lbs) | Target Torque – Lubricated (ft-lbs) |
|---|---|---|---|
| 1/2" | 13 | 26.0 | 20.0 |
| 5/8" | 11 | 52.0 | 39.0 |
| 3/4" | 10 | 93.0 | 70.0 |
| 1" | 8 | 227.0 | 170.0 |
■ Key Characteristics & Applications
Unlike Inconel 600, Inconel 601 forms a tightly adherent oxide scale that resists spalling even under severe thermal cycling. It maintains high mechanical strength at elevated temperatures and offers robust resistance to aqueous corrosion, carburization, and carbonitriding environments.
- Thermal Processing: Fasteners used in radiant tubes, muffles, retorts, and heat-treating baskets.
- Chemical Processing: Catalyst support grids in nitric acid production and ammonia reformers.
- Aerospace & Power Generation: Gas-turbine components, exhaust systems, and fabricated combustion chambers.
- Pollution Control: Ash handling systems and high-temperature exhaust environments.