ARK Stainless INC. is a trusted manufacturer and supplier of premium Inconel 600/601/625/718 Fasteners and Incoloy 800/800HT/825 Fasteners, crafted from high-quality ferrous and non-ferrous alloys. We also offer custom fasteners designed to meet specific client requirements and dimensions. All our fasteners undergo rigorous quality control checks and are securely packaged to ensure safe delivery worldwide.
Our Inconel and Incoloy fasteners are available in a wide array of specifications, including tolerances, thread types, sizes, shapes, grades, thicknesses, surface finishes, and lengths. These high-performance fasteners are ideal for use in harsh, high-temperature, and corrosive environments. The composition of these alloys includes essential elements such as Nickel, Chromium, Iron, Manganese, Silicon, Sulfur, Carbon, Copper, and Molybdenum, which enhance their strength, durability, and resistance to oxidation, pitting, and stress corrosion cracking.
We manufacture and supply a complete range of fasteners, including Inconel 600 Fasteners, Inconel 601 Fasteners, Inconel 625 Fasteners, Inconel 718 Fasteners, Incoloy 800 Fasteners, Incoloy 800HT Fasteners, and Incoloy 825 Fasteners. These fasteners are compliant with ASTM and ASME standards and are extensively used in industries such as chemical processing, aerospace, marine, oil and gas, and power generation sectors, owing to their superior mechanical properties, high strength, and exceptional resistance to elevated temperatures and corrosive environments.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Ti | Al | Mb |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 0.15 max | 1.00 max | 0.50 max | 0.015 max | 0.50 max | 6.00 – 10.00 | 72.00 min | 14.00 – 17.00 | - | - | - |
| Inconel 601 | 0.10 max | 1.00 max | 0.50 max | 0.015 max | 1.00 max | Balance | 58.0 – 63.0 | 21.0 – 25.0 | - | - | - |
| Inconel 625 | 0.10 max | 0.50 max | 0.50 max | 0.015 max | - | 5.0 max | 58.0 min | 20.0 – 23.0 | - | - | - |
| Inconel 718 | 0.08 max | 0.35 max | 0.35 max | 0.015 max | 0.30 max | - | 50.00 – 55.00 | 17.00 – 21.00 | - | - | - |
| Incoloy 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.5 min | 30 – 35 | 19 – 23 | 0.15 – 0.60 | 0.15 – 0.60 | - |
| Incoloy 800H | 0.05 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.5 min | 30 – 35 | 19 – 23 | 0.15 – 0.60 | 0.15 – 0.60 | - |
| Incoloy 825 | 0.05 max | 1.00 max | 0.50 max | 0.015 max | 1.5 – 3.0 | 22.0 min | 38.0 – 46.0 | 19.5 – 23.5 | 0.60 – 1.20 | 0.20 max | 2.5 – 3.5 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|---|---|
| Inconel 600 | 8.47 g/cm³ | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40% |
| Inconel 601 | 8.1 g/cm³ | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30% |
| Inconel 625 | 8.4 g/cm³ | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5% |
| Inconel 718 | 8.2 g/cm³ | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 482 | 45% |
| Incoloy 800/800H/800HT | 8.0 g/cm³ | 1357 °C (2475 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30% |
| Incoloy 825 | 8.14 g/cm³ | 1370 °C (2500 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30% |
Inconel 600/601/625/718 Fasteners are crafted from a combination of Nickel and Chromium, providing exceptional mechanical strength and corrosion resistance across a wide range of industries. These fasteners are highly valued for their outstanding oxidation resistance and their ability to maintain integrity in extreme temperature environments. Inconel fasteners exhibit superior performance in carburizing and chloride-rich conditions, making them a preferred choice for applications involving harsh chemicals and high pressures. They are extensively used in chemical processing, offshore drilling, petrochemical industries, power generation, food processing, aerospace, and marine applications where durability and reliability are critical.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| Inconel 600 | 2.4816 | N06600 | NCF 600 | NA 13 | МНЖМц 28-2,5-1,5 | NC15FE11M | NiCr15Fe |
| Inconel 601 | 2.4851 | N06601 | NCF 601 | NA 49 | XH60BT | NC23FeA | NiCr23Fe |
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NA 21 | ХН75МБТЮ | NC22DNB4M | NiCr22Mo9Nb |
| Inconel 718 | 2.4668 | N07718 | - | - | - | - | - |
Incoloy 800/800H/800HT/825 Flanges are renowned for their exceptional performance in demanding industrial environments, including power generation, heat exchangers, chemical processing, and offshore drilling operations. These flanges are highly valued in industries such as pulp and paper, food processing, pharmaceutical equipment, seawater systems, gas pipelines, and more. Designed to endure high temperatures and harsh chemical exposures, Incoloy 800/800H/800HT/825 Flanges offer outstanding resistance to corrosion and oxidation. They are manufactured through advanced heat treatment processes to achieve superior strength, ductility, and performance. Their ability to withstand extreme conditions makes them the preferred choice for critical applications where reliability and durability are essential.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Incoloy 800 | 1.4876 | N08800 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 | XH32T |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | ЭИ670 | - | X8NiCrAlTi32-21 | XH32T |
| Incoloy 825 | 2.4858 | N08825 | NCF 825 | NA 16 | ЭП703 | NFE30C20DUM | NiCr21Mo | XH38BT |
