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Inconel 601 fasteners are nickel-chromium alloy fastening components engineered for extreme heat, oxidation resistance, and structural stability in aggressive environments. Manufactured to standards such as ASTM B166, DIN, and ISO specifications, these fasteners are widely used in heat treatment equipment, chemical processing plants, and power generation systems where conventional stainless steel fasteners fail.
The alloy’s high nickel content provides excellent resistance to carburization, while chromium enhances oxidation resistance even at temperatures exceeding 1100°C. This makes Inconel 601 fasteners a reliable choice for applications involving cyclic thermal loads and corrosive gases.
KK Fasteners supplies precision-engineered Inconel 601 fasteners to global industrial markets, ensuring consistent material quality, traceability, and compliance with international standards for critical fastening applications.
| Parameter | Details |
|---|---|
| Material | Inconel 601 (Nickel-Chromium Alloy) |
| Grade | UNS N06601 |
| Size Range | M3 to M64 / 1/8" to 2" |
| Thread Type | Metric, UNC, UNF, BSW, BSF |
| Standards | ASTM B166, ASTM B564, DIN, ISO, BS |
| Types | Bolts, Nuts, Screws, Stud Bolts, Washers |
| Surface Finish | Plain, Passivated, Polished |
| Tensile Strength | ≥ 550 MPa |
| Hardness | Rockwell B 65–85 |
|
Element
|
Content (%)
|
|
Nickel, Ni
|
72.0 min
|
|
Silicon, Si
|
.50 max
|
|
Carbon, C
|
.15 max
|
|
Sulphur, S
|
.015 max
|
|
Copper, Cu
|
.50 max
|
|
Iron, Fe
|
6.0-10.0
|
|
Manganese, Mn
|
1.00 max
|
|
Density
|
8.47 g/cm3
|
|
Melting Point
|
1413 °C (2580 °F)
|
|
Tensile Strength
|
Psi – 95,000 , MPa – 655
|
|
Yield Strength (0.2%Offset)
|
Psi – 45,000 , MPa – 310
|
|
Elongation
|
40 %
|
|
Alloy
|
Common Name
|
Related Specification
|
|||
|---|---|---|---|---|---|
|
British
|
European
|
ASTM
|
UNS
|
||
|
Alloy 601
|
Inconel 601®
|
BS 3076 NA 14
|
2.4816
|
B166
|
N06600
|
| Nominal Size Of D | Diameter Of Body | Head Thickness | Flats Acro | Corners Acro | ||||
|---|---|---|---|---|---|---|---|---|
| D (MAXIMUM) | D (MINIMUM) | H (MAXIMUM) | H (MINIMUM) | F (MAXIMUM) | F (MINIMUM) | C (MAXIMUM) | C (MINIMUM) | |
| m10 | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
| m12 | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
| m14 | 14.00 | 13.73 | 9.09 | 8.51 | 22.00 | 20.67 | 24.25 | 23.35 |
| m16 | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
| m20 | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
| m24 | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
| m30 | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
| m36 | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
| m42 | 42.00 | 41.38 | 26.97 | 25.03 | 65.00 | 62.90 | 75.06 | 71.71 |
| m48 | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
| m56 | 56.00 | 55.26 | 36.2 | 33.80 | 85.00 | 82.20 | 98.15 | 93.71 |
| m64 | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
| m72 | 72.00 | 71.26 | 46.45 | 43.55 | 105.00 | 101.40 | 121.24 | 115.60 |
| m80 | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
| m90 | 90.00 | 89.13 | 57.74 | 54.26 | 130.00 | 125.50 | 150.11 | 143.07 |
| m100 | 90.00 | 99.13 | 63.9 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
Inconel 601 fasteners are used in high-temperature and corrosive environments where oxidation resistance, thermal stability, and mechanical strength are critical for safe and reliable operation.
Inconel 601 fasteners are typically produced through hot forging followed by precision CNC machining to achieve tight dimensional tolerances. Thread rolling or cutting processes ensure consistent thread geometry for load-bearing reliability.
Quality assurance includes dimensional inspection using calibrated gauges, tensile and hardness testing, and surface finish verification to meet ASTM and ISO standards. Each batch undergoes material traceability checks, ensuring chemical composition compliance.
At KK Fasteners, inspection protocols align with ISO 9001 standards, with documentation provided for mechanical properties, raw material origin, and compliance certifications. This ensures consistency for critical applications where failure is not an option.
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Inconel 601 fasteners are nickel-chromium alloy fastening components designed for high-temperature and corrosive environments. They provide excellent oxidation resistance and structural stability, making them suitable for demanding applications such as furnaces, chemical processing units, and power generation systems.
Yes, Inconel 601 fasteners can withstand temperatures up to around 1100°C. Their composition forms a protective oxide layer that prevents scaling and maintains mechanical strength even under prolonged exposure to heat.
These fasteners are typically manufactured according to ASTM B166 and ASTM B564 standards, along with DIN, ISO, and BS specifications. These standards ensure proper material composition, mechanical properties, and dimensional accuracy.
Selection depends on operating temperature, load requirements, and environmental exposure. For high-temperature oxidation resistance, Inconel 601 is ideal. Buyers should also consider thread type, size, and compatibility with surrounding materials.
A reliable supplier should offer ISO-certified manufacturing, full material traceability, and compliance with international standards. Evaluate their testing capabilities and export experience. KK Fasteners supplies globally with consistent quality and documented inspection processes.
Inconel 601 fasteners deliver consistent performance in high-temperature and corrosive environments where material reliability is critical. With controlled manufacturing processes and full traceability, KK Fasteners supports industrial buyers with dependable supply and technical clarity. For project-specific requirements or bulk inquiries, request a quote or connect with the engineering team to evaluate the right fastening solution.
