Inconel 686 Fasteners, the high-performance Ni-Cr-Mo-W alloy fasteners made from Inconel Alloy 686 (UNS N06686 / W.Nr. 2.4606), they excel in performance like resisting pitting, crevice corrosion, stress corrosion cracking, and hostile chemical atmospheres, and the applications in chemical processing, marine, pollution control, power generation, offshore.
Inconel 686 Fasteners – Premium Corrosion Resistant Fastening Solutions
We produce and supply Inconel 686 Fasteners which meet rigid industrial service requirements in areas where common stainless steels and nickel alloys cannot perform. Crafted from Inconel Alloy 686, these fasteners are ideally suited for a challenging list of service environments that include but are not limited to; strong acids, chlorides, immersion in sea water and high temperature oxidation.
As an established and recognized Alloy 686 supplier and exporter we produce engineered fastening components that offer superior long life, high integrity and unsurpassed corrosion resistance in a wide range of industries. We provide a comprehensive inventory of Inconel 686 Hex Bolts, Nuts, Screws, Threaded Rod, Washers, Studs and other custom-made fastener designs.
This nickel alloy with unique composition and high performance attributes, is uniquely composed of nickel, chromium, molybdenum, and tungsten elements thus bestowing excellent corrosion resistance to aggressive environments.
What is Inconel Alloy 686?
Inconel alloy 686 is a nickel-chromium-molybdenum-tungsten alloy which is manufactured and designed for use in harsh corrosive environments. With great resistance to both oxidizing and reducing acids, this alloy is favored above many others for critical fastening uses.
Optimized for excellent performance, Inconel 686 composition resists all types of corrosive situations including:
- Pitting corrosion
- Crevice corrosion
- Stress corrosion cracking
- Sulfuric acid attack
- Hydrochloric acid environments
- Chlorides (i.e. Stress corrosion cracking by the presence of chlorides)
- Oxidation at elevated temperatures
Thus, fasteners made with Ni-Cr-Mo-W alloy fasteners are employed by chemical processing plants, flue gas desulfurization processes, sea-side operations, offshore structures, etc.
Table of Contents
- ➤ Inconel 686 Fasteners – Premium Corrosion Resistant Fastening Solutions
- ➤ What is Inconel Alloy 686?
- ➤ Types of Inconel 686 Fasteners We Supply
- ➤ Inconel 686 Composition
- ➤ Mechanical Properties of Inconel 686 Fasteners
- ➤ Specifications of Inconel 686 Fasteners
- ➤ Manufacturing Process of Inconel 686 Fasteners
- ➤ Applications of Inconel 686 Fasteners
- ➤ Advantages of Inconel 686 Fasteners
- ➤ Why Choose Us for Inconel 686 Fasteners?
Types of Inconel 686 Fasteners We Supply
Our comprehensive variety of Inconel 686 fasteners we supply adheres to international and customer defined parameters:
➤ Inconel 686 Hex Bolts
High-strength Inconel 686 hex bolts designed for use in heavy industrial applications where enhanced mechanical integrity and corrosion resistance is imperative.
➤ UNS N06686 Bolts
Precision machined to International Standards, bolts made of UNS N06686 Bolts are ideal for use in chemical processing equipment, pressure vessels, heat exchangers and offshore projects.
➤ F468 N06686 Bolts
Produced as per ASTM standards, F468 N06686 bolts offer enduring operation in adverse environments and at elevated temperatures.
➤ ASTM F467 Alloy 686 Nuts
ASTM F467 Alloy 686 nuts we fabricate offer reliable fitting with Alloy 686 bolts and studs ensuring tight and persistent connections.
➤ UNS N06686 Socket Head Cap Screws
UNS N06686 socket head cap screws deliver superior performance for critical fastening tasks, boasting strong mechanical characteristics, precise manufacture, and superior corrosion-resistance.
➤ Alloy 686 Flat Washers and Lock Washers
We supply Alloy 686 flat washers and lock washers designed to distribute load evenly and maintain fastening integrity under vibration and thermal cycling.
➤ Stud Bolts and Threaded Rods
Available in custom dimensions for flanges, pressure vessels, and high-temperature process equipment.
➤ Custom Alloy 686 Fastener Fabrication
We can do custom Alloy 686 fastener fabrication as per the client's drawings, national standards or individual specifications.
Inconel 686 Composition
The carefully balanced Inconel 686 composition contributes to its exceptional corrosion resistance and mechanical performance.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 19.0 – 23.0 |
| Molybdenum (Mo) | 15.0 – 17.0 |
| Tungsten (W) | 3.0 – 4.4 |
| Iron (Fe) | Max 5.0 |
| Titanium (Ti) | 0.02 – 0.25 |
| Carbon (C) | Max 0.01 |
| Manganese (Mn) | Max 0.75 |
| Silicon (Si) | Max 0.08 |
| Phosphorus (P) | Max 0.04 |
| Sulfur (S) | Max 0.02 |
Mechanical Properties of Inconel 686 Fasteners
| Property | Value |
|---|---|
| Tensile Strength | 770 MPa (Min) |
| Yield Strength (0.2% Offset) | 355 MPa (Min) |
| Elongation | 55% |
| Hardness | 100 HRB (Approx.) |
| Density | 8.73 g/cm³ |
| Melting Range | 1338 – 1380°C |
These properties make W.Nr. 2.4606 Inconel Bolts suitable for applications involving extreme pressure, temperature fluctuations, and corrosive chemicals.
Specifications of Inconel 686 Fasteners
| Specification | Details |
|---|---|
| Material Grade | Inconel Alloy 686 |
| UNS Number | UNS N06686 |
| Werkstoff Number | W.Nr. 2.4606 |
| ASTM Standard | ASTM F468, ASTM F467 |
| ASME Standard | ASME SB 574 |
| Fastener Types | Bolts, Nuts, Screws, Studs, Washers |
| Thread Types | Metric, UNC, UNF, BSW |
| Size Range | M3 to M100 |
| Length | Custom as Required |
| Finish | Plain, Polished, Coated |
Manufacturing Process of Inconel 686 Fasteners
Applications of Inconel 686 Fasteners
The superior corrosion resistance of NiCr21Mo16W Inconel Alloy Bolts makes them ideal for highly demanding industrial sectors.
Industries Served
- Chemical Processing Plants
- Petrochemical Facilities
- Offshore Oil & Gas Platforms
- Marine Engineering
- Pollution Control Systems
- Power Generation Plants
- Desalination Facilities
- Pulp & Paper Industry
- Pharmaceutical Manufacturing
- Heat Exchanger Equipment
- Flue Gas Desulfurization Systems
- Waste Treatment Facilities
Advantages of Inconel 686 Fasteners
- Extreme Corrosion Resistance: Good behavior in both oxidizing and reducing atmosphere.
- Superior Chloride Resistance: Protection against chloride pitting and crevice corrosion.
- Good Resistance to Elevated Temperature: Maintains strength and integrity at elevated temperatures.
- Long Service Life: Minimizing the maintenance cost and down-time.
- Excellent Fabricability: Suitable for machining, fabrication, and custom manufacturing.
- Outstanding Mechanical Strength: Ensure good performance when used as fastening element at severe conditions.
Why Choose Us for Inconel 686 Fasteners?
In any critical fastening requirements, quality, traceability and technical know-how is what matters the most. We offer precise manufacture of Inconel 686 Fasteners meeting international standards and client-specified requirements.
Our Advantages
- Extensive inventory of Alloy 686 fasteners
- Competitive pricing and global exports
- Custom Alloy 686 fastener fabrication
- Fast delivery schedules
- Complete material traceability
- Third-party inspection support
- Industry-standard testing and certification
- Technical assistance for material selection
Our high standards for quality and service have enabled us become one of the premier Alloy 686 supplier and exporter for several industries worldwide.
Related Inconel Fasteners Grades
- Inconel 600 Fasteners
- Inconel 601 Fasteners
- Inconel 602ca Fasteners
- Inconel 617 Fasteners
- Inconel 622 Fasteners
- Inconel 625 Fasteners
- Inconel 686 Fasteners
- Inconel 690 Fasteners
- Inconel 713c Fasteners
- Inconel 718 Fasteners
- Inconel 725 Fasteners
- Inconel 901 Fasteners
- Inconel 925 Fasteners
- Inconel 926 Fasteners
- Inconel X750 Fasteners
Frequently Asked Questions
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