Inconel 686
UNS N06686 / W.Nr. 2.4606
Catalog
Arialloy are carefully crafted using only the finest materials. Our production team offers superior craftsmanship with over 10 years of experience working with inconel 686 tubes / sheets / wires / bars / fittings
Inconel 686 Material Properties
UNS N06686 / W.Nr. 2.4606 Overview
Explore the chemical composition, corrosion resistance, mechanical properties, and temperature characteristics of Inconel 686 for optimal resistance, strength, and stability
Inconel 686 Material Properties Overview
Arialloy manufactures and supplies inconel 686 products in China, offering quality materials at competitive prices.
Inconel 686 (UNS N06686 / W.Nr. 2.4606) is an austenitic nickel alloy strengthened by a solid solution of chromium, molybdenum and tungsten. Its composition contains 19.0% to 23.0% chromium, 15.0% to 17.0% molybdenum and 3.0% to 4.4% tungsten, with nickel forming the balance. Chromium supports resistance to oxidizing acids, while nickel and molybdenum improve performance in reducing conditions. Tungsten complements molybdenum in limiting localized attack. Carbon is restricted to 0.01% maximum, helping reduce carbide precipitation and preserve corrosion resistance around welded joints. Low iron content further supports its metallurgical stability. The alloy combines broad chemical resistance with the ductility needed for forming and fabrication. In the annealed condition, it normally has a single phase microstructure.
Matching 686CPT filler metals and welding electrodes help maintain corrosion resistance across welded joints. Their chemistry supports resistance to mixed acids and localized attack after welding. They can also be selected for joining different nickel alloys or depositing corrosion resistant weld overlays, with welding procedures and dilution levels considered when evaluating the finished deposit.
Inconel 686 Corrosion Resistance
Inconel 686 combines resistance to uniform corrosion with strong protection against pitting, crevice attack and chloride induced stress corrosion cracking. Low carbon content helps preserve corrosion resistance in the regions affected by welding heat.
Resistance extends to reducing acids, oxidizing acids and mixtures containing aggressive halides. ASTM G48 tests in acidified 6% ferric chloride recorded critical pitting and critical crevice corrosion temperatures above 85°C. These results demonstrate resistance to localized attack under the stated test conditions; actual performance depends on solution chemistry, concentration and temperature.
Inconel 686 Mechanical Properties
Inconel 686 Temperature Characteristics
Inconel 686 retains useful strength at elevated temperatures, with representative tests on 6.4 mm plate at 538°C showing 545 MPa tensile strength and 61% elongation. Its thermal stability depends on both temperature and exposure time.
After 100 hours at 650°C, subsequent room temperature impact toughness remained close to the annealed baseline, whereas exposure at 760°C caused a marked reduction. Prolonged exposure at higher temperatures can promote brittle secondary phases. Temperature limits should therefore reflect material condition, mechanical loading, exposure duration and the specific corrosive environment.
Inconel 686 Products
Nickel Alloy 686 Product Types
With advanced equipment and expert craftsmanship, we create durable, high performance nickel alloy 686 products tailored to each project’s needs
Inconel 686 Data Sheet
Inconel Alloy 686 Data Sheet
Access / download the Inconel 686 data sheet to gain in depth insights into precise physical and processing parameters
ensuring the selection of the optimal nickel alloy material for your project
Physical Properties
| Density | g/cm3 | 8.73 | |
|---|---|---|---|
| lb/in.3 | 0.315 | ||
| Melting Range | °F | 2440 - 2516 | |
| °C | 1338 - 1380 | ||
| Electrical Resistivity | ohm-circ mil/ft | 744.4 | |
| μΩ-m | 1.237 | ||
| Permeability at 200 oersted | 15.9 kA/m | 1.0001 | |
Mechanical Properties
| Product Form | Thickness or Diameter | Tensile Strength | Yield Strength (0.2% Offset) | Elongation | |||
|---|---|---|---|---|---|---|---|
| in | mm | ksi | MPa | ksi | MPa | % | |
| Plate | 0.5 | 12.7 | 104.7 | 722 | 52.8 | 364 | 71 |
| Plate | 0.25 | 6.35 | 106.3 | 733 | 57.9 | 399 | 68 |
| Sheet | 0.125 | 3.18 | 116.5 | 803 | 61.1 | 421 | 59 |
| Sheet | 0.062 | 1.57 | 123 | 848 | 59.2 | 408 | 59 |
| Rod | 1.5 | 38.1 | 117.5 | 810 | 52.1 | 359 | 56 |
Inconel 686 Standards
UNS N06686 / W.Nr. 2.4606 Specifications & Standards
From production to inspection, we meet strict quality standards, addressing tolerance and chemical composition needs
ASTM B163
Condensor and Heat Exchanger Tube
ASTM B622
Seamless Pipe & Tube
ASTM B829
Seamless Pipe & Tube
ASTM B619
Welded Pipe
ASTM B775
Welded Pipe
ASTM B626
Welded Tube
ASTM B751
Welded Tube
ASTM B366
Welded Fittings
ASTM B462
ASTM B574
Rod
ASTM B564
ASTM B575
Plate, Sheet and Strip
ASTM B906
Plate, Sheet and Strip
AWS A5.14 ERNiCrMo-14
Filler Metal
AWS A5.11 ENiCrMo-14
Welding Electrode
Inconel 686 SHOW
Nickel Alloy 686 Showcase
From initial samples to large scale production, we supply high quality Inconel 686 products and help you achieve your manufacturing goals.
Upload Your Requirements
To begin, provide your contact details with the product type, dimensions, quantity, and required standards. If you have CAD drawings, specifications, or special tolerance requirements, please upload them
Receive a Quote & Design Review
Within 12 hours, we’ll send you a detailed quote and (custom) design for manufacturability (DFM) feedback. This ensures the cost feasibility of your custom project and gives you a clear idea of the costs involved
Confirm Your Order & Begin Production
Once you approve the quote and design, your project will enter our production queue the morning after we receive your confirmation
Shipping & Delivery
On average, custom production orders ship within 20–45 business days. In stock products and samples ship within 48 hours
Just 4 Steps
Custom Inconel 686 Quotation Process
From detailed consultation to final delivery, we make custom Inconel 686 product orders simple and convenient. With exceptional customer service, we anticipate your needs, provide professional solutions, and ensure on time delivery
Inconel 686 Supplier - Arialloy
From Production to Quality Control, Every Step Tailored to Perfection
Arialloy inconel alloy 686 manufacturer has always been at the forefront of the industry. With its unremitting pursuit of quality, precision, and professional solutions, Arialloy has gradually established a complete production system and rapid supply capabilities. By continuously improving manufacturing processes, adopting cutting edge equipment, and adhering to strict quality control, Arialloy ensures that every product meets the highest requirements for durability, precision, and international standards
Inconel 686 Applications
UNS N06686 / W.Nr. 2.4606 Alloy Solutions
We serving diverse industries, focus on strict quality control and full scale production, turning your vision into reality with professional expertise and attention to detail
Inconel 686 Knowledge
Nickel Alloy 686 Wiki
Arialloy explores with you every factor that influences your choice
including chemical composition, mechanical properties, temperature characteristics, price, and manufacturing process
Inconel 686 VS Inconel 686
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More Inconel Grades
Inconel Alloy Grades
Explore the full range of Inconel alloys to expand your material choices and ensure you find the perfect nickel alloy
Custom Inconel 686 FAQs
Our team of experts is here to support you every step of the way, helping transform your vision into reality. Explore FAQs for related support
You can send your inconel 686 inquiry to sales@arialloy.com or use the contact form below. After receiving your specifications, our sales team will send you a detailed quotation. If you decide to purchase, provide us with your PO. We will send the PI for payment and begin manufacturing after receipt of the prepayment. We will contact you when the order is ready.
We aim to respond to every inconel 686 inquiry with a quotation within 24 hours. When an inquiry is incomplete or cannot be quoted, we will contact you promptly rather than leave the request unanswered.
The standard trade term for our inconel 686 quotation is FOB. Normally, your side will nominate the freight forwarder, while we handle the local cooperation needed to support the shipment. If you prefer us to manage transportation, we can arrange the service and obtain the corresponding freight quotation.
Alloy pricing is largely connected to the cost of its metallic ingredients. Important elements such as nickel, chromium, molybdenum, and tungsten contribute significantly to superalloy production costs. As their prices rise or decline, the price of the alloy may also adjust.
We control the inconel 686 smelting process ourselves. Our factory operates over 30 vacuum smelting and electroslag remelting furnaces, with capacities of 50 kg, 200 kg, 1,000 kg, and 5,000 kg. The availability of smaller furnaces allows us to accommodate orders that would not be practical with large-scale equipment alone.
Yes. The MTR for inconel 686 is available before dispatch and is prepared in accordance with applicable industry standards. It details the material specification, chemistry, mechanical properties, dimensions, and heat number.
During the melting stage, we strictly regulate the proportions of materials used for inconel 686 and conduct chemistry checks to monitor composition. After production, PMI testing is carried out, and additional laboratory analysis can be arranged through an independent facility.