Inconel 625 Fasteners (UNS N06625)
Ananka Fasteners is a premier manufacturer and supplier of high-performance Inconel 625 Fasteners (W.Nr. 2.4856). Fortified with molybdenum and niobium according to official Special Metals Alloy Standards, Alloy 625 delivers exceptional fatigue strength and outstanding resistance to pitting, crevice corrosion, and chloride-ion stress-corrosion cracking, making it an essential material for marine, offshore oil & gas, and chemical processing.
■ Inconel Alloy Selection Grid
To assist procurement managers and engineers, use our technical grid below to compare the performance limits of our primary Inconel grades. Click the specific grade for its dedicated specification page.
| Grade / Anchor Link | Yield Strength (Min) | Pitting Resistance (PREN) | Max Temperature Limits |
|---|---|---|---|
| Inconel 600 Fasteners | 35 ksi (240 MPa) | N/A (Oxidation focused) | 2000°F (1093°C) |
| Inconel 601 Fasteners | 30 ksi (205 MPa) | N/A (Oxidation focused) | 2200°F (1204°C) |
| Inconel 625 Fasteners | 60 ksi (414 MPa) | ~45 (Excellent) | 1800°F (982°C) |
| Inconel 718 Fasteners | 150 ksi (1034 MPa) | ~30 (Very Good) | 1300°F (704°C) |
| Inconel 725 Fasteners | 120 ksi (827 MPa) | ~45 (Excellent) | 1000°F (538°C) |
■ Complete Range of Inconel 625 Fasteners
We manufacture a comprehensive range of Alloy 625 fasteners designed to endure highly corrosive environments and extreme stress.
| 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 / 12-Point Bolts | Flat Washers / Spring Washers | Threaded Rods / Tie Rods |
■ Mechanical Properties & Yield Strength
Inconel 625 Fasteners derive their high strength from the stiffening effect of molybdenum and niobium on their nickel-chromium matrix, eliminating the need for precipitation hardening treatments. Below are the standard mechanical properties:
| Tensile Strength (Min) | Yield Strength 0.2% Offset (Min) | Elongation (%) | Density |
|---|---|---|---|
| 120 ksi (827 MPa) | 60 ksi (414 MPa) | 30% Min | 8.44 g/cm³ |
■ Marine, Offshore & EPC Applications
Because of their superb resistance to local attack (pitting and crevice corrosion) and high corrosion-fatigue strength, Inconel 625 components are widely specified across critical marine and chemical sectors.
- Marine & Offshore: Submarine propulsion motors, offshore oil rig mooring lines, and propeller blades exposed to highly saline environments.
- Chemical Processing: Heat exchangers, reaction vessels, and distillation columns processing highly corrosive acids.
- Aerospace: Aircraft ducting systems, engine exhaust systems, and thrust-reverser components.
- Pollution Control: Scrubbers, dampers, and liners in flue gas desulfurization (FGD) systems.
■ Quality Assurance & MTC Downloads
As a primary manufacturer based in Mumbai, our quality control goes beyond standard chemical analysis. We conduct rigorous first-hand testing on all Inconel 625 Fasteners to ensure they meet the stringent safety requirements of marine engineers and EPC contractors.
- Ultrasonic Testing (UT): Internal flaw detection performed on raw billets prior to machining.
- Destructive Testing: In-house tensile, yield, and shear testing to verify mechanical integrity under stress.
- PMI (Positive Material Identification): 100% optical emission spectroscopy scanning prior to dispatch to guarantee exact molybdenum and niobium content.
📄 Download Sample EN 10204:3.1 MTC (PDF)
