Inconel 625 fasteners Manufacturer and Supplier
Inconel 625 fasteners are manufactured from a nickel-chromium-molybdenum alloy that provides high corrosion resistance and outstanding mechanical strength. Nickel 625 washers and Inconel 625 nuts provide strong resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking, making them suitable for seawater, chemical, and high-pressure environments. Inconel 625 nuts withstand extreme temperatures and retain significant tensile strength at elevated heat, holding approximately 13.3 ksi at 2,000°F while still supporting moderate loads.
We supply Inconel bolts, nuts, washers, studs, screws, and threaded rods, capable of operating at temperatures up to 1000°C with excellent oxidation resistance and dimensional stability. Since these fasteners gain strength through cold working rather than heat treatment, they perform reliably in demanding applications.
Alloy 625 fasteners are designated as UNS N06625 and Werkstoff Number 2.4856, and they conform to national and international standards. As an ASME-approved Inconel 625 fasteners manufacturer in India under the Boiler and Pressure Vessel Code, all products are produced using high-grade raw materials with strict quality control. Standard and custom sizes are available with timely global delivery. Request a quote now to get high-quality Inconel 625 fasteners delivered on time, anywhere in the world.
Request QuoteWhat is Inconel 625?
Inconel 625 is a nickel-based superalloy known for its superior strength and corrosion resistance especially in extreme environments. With key alloying elements such as chromium, molybdenum and niobium, it offers remarkable resistance to pitting, crevice corrosion and stress corrosion cracking in both oxidizing and reducing conditions. Unlike other high-performance alloys, Inconel 625 retains its mechanical integrity at temperatures up to 1000°C and in high-pressure conditions making it ideal for use in aerospace, marine, nuclear and chemical processing industries.
This alloy is non-magnetic and provides high fatigue and tensile strength without the need for precipitation-hardening treatments. It also offers excellent weldability which is particularly useful in fabrication and repair of critical components. Fasteners made from Inconel 625 are often used where both strength and corrosion resistance are essential especially in high-salinity or acidic environments.
Types of Inconel 625 Fasteners
Inconel 625 Fasteners offer high corrosion resistance, thermal stability, and tensile strength for demanding applications in aerospace, marine, chemical, and offshore industries. Available in bolts, nuts, screws, studs, and more, they ensure reliable performance even in extreme conditions.
- Inconel 625 Structural Bolts
- Inconel 625 Heavy Hex Bolts
- Inconel 625 Hex Bolts
- Inconel 625 Hexagon Head Bolts
- Inconel 625 Machine Bolts
- Inconel 625 T Bolts
- Inconel® 625 Eye Bolt
- Inconel 625 Foundation Bolts
- Inconel® Alloy 625 J Bolts
- Inconel 625 Button Head Bolt
- Inconel 625 Anchor Bolts
- Inconel 625 Long Bolts
- Inconel 625 Carriage Bolt
- Inconel 625 Elevator Bolt
- Inconel 625 Timber Bolts
- Inconel 625 Square Bolt
- Inconel 625 Metric Bolt
- Inconel 625 Plow Bolts
- Inconel 625 U Bolts
- Inconel 625 Flange Bolts
- Inconel 625 Hex Nuts
- Inconel 625 Heavy Hex Nuts
- Inconel 625 Wing Nuts
- Inconel 625 Hexagon Nuts
- Inconel 625 Cap Nuts
- Inconel 625 Square Nuts
- Inconel 625 Coupling Nuts
- Inconel 625 Hex Jam Nuts
- Inconel Alloy 625 T-Nuts
- Inconel® Alloy 625 Eye Nuts
- Inconel 625 Nylock Nuts
- Inconel® 625 High Tensile Nuts
- Inconel 625 Cage Nuts
- Inconel 625 Dome Nuts
- Inconel 625 Knurled Nuts
- Inconel 625 Keps-K Lock Nuts
- Inconel 625 Machine Hex Nuts
- Inconel 625 Slotted Nuts
- Inconel 625 Plain Washers
- Inconel 625 Spring Washers
- Inconel 625 Locking Washer
- Inconel 625 Split Washer
- Inconel® Alloy 625 Flat Washers
- Inconel 625 Ogee Washers
- Inconel 625 Fender Washer
- Inconel 625 Conical Washers
- Inconel 625 Serrated Washer
- Inconel 625 Tab Washers
- Inconel 625 Hex Washer
- Inconel 625 Countersunk Washer
- Inconel Alloy 625 Dock Washers
- Inconel 625 Spring Lock Washer
- Inconel 625 Star Washer
- Inconel 625 Bonded sealing Washer
- Inconel 625 Square Washers
- Inconel® 625 Belleville Washer
- Inconel® 625 Socket Set Screw
- Inconel 625 Self Drilling Screw
- Inconel 625 Socket Head Cap Screw
- Inconel 625 Hex Head Screws
- Inconel 625 Wood Screw
- Inconel 625 Eye Screw
- Inconel 625 Wing Screw
- Alloy 625 Self Tapping Screws
- Inconel 625 Roofing Screw
- Inconel 625 Phillips Head Screw
- Inconel 625 Decking Screw
- Inconel 625 Machine Screw
- Inconel 625 Thumb Screw
- Inconel 625 Drywall Screws
- Inconel 625 Chipboard Screw
- Inconel 625 Metric Set Screws
- Inconel 625 Sems Screw
- Alloy 625 Thread Rolling Screw
- Inconel 625 Full Threaded Stud Bolts
- Inconel 625 Half Threaded Stud Bolts
- Inconel 625 Threaded Rod
- Inconel 625 Double Ended Studs
- Inconel 625 Tap End Stud Bolt
- Inconel® Alloy 625 Tie Rods
- Inconel Alloy 625 Studs
- Inconel 625 Single End Stud Bolts
- Inconel 625 Reduced Shank Stud Bolt
- Alloy 625 Continuous Threaded Stud
- Inconel 625 Partial Threads Stud Bolt
- Inconel® 625 Heavy Stud Bolts
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Inconel 625 Chemical Composition for Fasteners
Inconel 625 fasteners are made from a nickel-based alloy with chromium, molybdenum, and niobium, providing excellent corrosion resistance and mechanical strength. This composition makes them ideal for marine, chemical, and high-temperature applications.
| Element | Minimum (%) | Maximum (%) |
|---|---|---|
| Nickel (Ni) | 58.0 | Balance |
| Chromium (Cr) | 20.0 | 23.0 |
| Molybdenum (Mo) | 8.0 | 10.0 |
| Niobium (Nb) + Tantalum (Ta) | 3.15 | 4.15 |
| Iron (Fe) | — | 5.0 |
| Carbon (C) | — | 0.10 |
| Manganese (Mn) | — | 0.50 |
| Silicon (Si) | — | 0.50 |
| Phosphorus (P) | — | 0.015 |
| Sulfur (S) | — | 0.015 |
| Aluminum (Al) | — | 0.40 |
| Titanium (Ti) | — | 0.40 |
Inconel 625 Mechanical Properties for Fasteners
Inconel 625 Fasteners offer exceptional mechanical strength, high fatigue resistance, and durability in extreme temperatures and corrosive environments. Strengthened through cold working, they maintain dimensional stability and resist deformation up to 1000°C, making them ideal for demanding industrial applications.
| Property | Value |
|---|---|
| Tensile Strength (min) | ≥ 827 MPa (120 ksi) |
| Yield Strength (0.2% offset, min) | ≥ 414 MPa (60 ksi) |
| Elongation (in 50mm, min) | ≥ 30% |
| Hardness | ≤ 30 HRC |
| Density | 8.44 g/cm³ |
| Melting Point | 1290 – 1350°C |
| Operating Temperature Range | Up to 1000°C |
Inconel 625 Material Specification for Fasteners
Inconel 625 fasteners are manufactured to meet stringent global standards for performance in extreme conditions. These specifications ensure precise dimensions, superior mechanical properties and corrosion resistance across a wide range of industrial applications.
Inconel 625 Fasteners Specification
| Specifications | ASTM F467, ASTM F468, ASTM B564, ASTM B446 |
|---|---|
| Standard | DIN, ISO, JIS, GB, IS, BS, ASTM |
| Length | 3mm to 200mm |
| Size | M02 to M160, Custom Sizes |
Inconel 625 fasteners equivalent Grades
Inconel 625 is recognized under various international standards and specifications making it easier to source and substitute across global markets. Whether you're referring to UNS, ASTM, EN or Werkstoff designations, the alloy maintains consistent chemical and mechanical properties. Below is a quick reference to its equivalent grades used worldwide:
| Standard | Equivalent Grade |
|---|---|
| UNS | N06625 |
| ASTM | B446 / B564 / B443 / B704 / B705 |
| EN | 2.4856 |
| Werkstoff Nr. | 2.4856 |
| BS | NA 21 |
| ISO | ISO 15156-3 |
Inconel 625 Bolt Torque Chart
The following torque chart provides recommended tightening values for Inconel 625 bolts, both dry and lubricated, ensuring optimal performance and safety in high-temperature and corrosive applications.
| Diameter (in) | Threads per Inch | Torque (ft-lb) Dry | Torque (ft-lb) Lubricated |
|---|---|---|---|
| 1/4 | 20–28 | 7.5–8.8 | 5.6–6.5 |
| 5/16 | 18–24 | 15.5–17.5 | 11.8–13.0 |
| 3/8 | 16–24 | 28.0–31.8 | 21.0–23.7 |
| 7/16 | 14–20 | 44.8–50.0 | 33.7–37.5 |
| 1/2 | 13–20 | 68.5–77.5 | 51.5–58.0 |
| 9/16 | 12–18 | 99.0–110.5 | 74.3–82.8 |
| 5/8 | 11–18 | 136.5–155.0 | 102.5–116.0 |
| 3/4 | 10–16 | 243–270 | 182–203 |
| 7/8 | 9–14 | 390–432 | 293–323 |
| 1 | 8–14 | 585–658 | 440–495 |
| 1-1/4 | 7–12 | 1020–1130 | 765–848 |
| 1-1/2 | 6–12 | 1775–2000 | 1330–1500 |
Applications of Inconel 625 Fasteners
Inconel 625 fasteners are widely used in applications that demand superior corrosion resistance, high strength, and reliability under extreme temperatures. Their exceptional performance in chloride-rich, high-pressure and oxidizing environments makes them ideal for various industries.
Typical applications include:
- Civil Construction Industries
- Ship Building Industries
- Heavy Engineering Industries
- Fertilizer Plants
- Power Generation Units (Nuclear, Hydro, or Thermal)
- Petro-Chemical Industries
- Oil Expansion Projects
- Offshore & Onshore Oil Towers
- Home Fittings
- Valves, Vessels, and Pumps
- Railways
- Steel Plants
Inconel 625 fasteners price list in India
Inconel 625 fasteners are premium-grade components designed for high-performance environments, and their pricing in India reflects their advanced material properties and manufacturing precision. The cost typically varies based on factors such as fastener type (bolts, nuts, washers, threaded rods, etc.), dimensions, quantity and any custom specifications required for critical applications.
At Unifit Fastener, we offer competitive pricing without compromising on quality. All fasteners are manufactured using certified raw materials and comply with international standards like ASTM B446. For accurate pricing, bulk order discounts or custom project requirements, get in touch with our sales team.
Request QuoteFAQ’s About Inconel 625 Fasteners
What industries use Inconel 625 fasteners?
They are widely used in aerospace, marine, offshore platforms, chemical processing, nuclear, and high-temperature applications.
Are Inconel 625 fasteners resistant to corrosion?
Yes, they resist pitting, crevice corrosion, and chloride-induced stress corrosion cracking, making them ideal for marine and chemical environments.
What is the melting range of Inconel 625?
Inconel 625 has a melting range of 1290–1350°C, making it suitable for extreme-temperature industrial applications.
Are custom thread pitches available for Inconel 625 fasteners?
Yes, custom threads can be manufactured to meet specific industrial requirements, including metric and imperial standards.