Inconel 718
UNS N07718 / W.Nr. 2.4668
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 718 tubes / sheets / wires / bars / fittings
Inconel 718 Material Properties
UNS N07718 / W.Nr. 2.4668 Overview
Explore the chemical composition, corrosion resistance, mechanical properties, and temperature characteristics of inconel 718 for optimal resistance, strength, and stability
Inconel 718 Chemical Composition
Inconel 718 Material Properties Overview
As a nickel alloy manufacturer and supplier in China, Arialloy supplies inconel 718 products.
Inconel 718 (UNS N07718 / W.Nr. 2.4668) is an austenitic nickel alloy containing chromium, iron, niobium, and molybdenum, together with smaller additions of titanium and aluminum. It combines high strength with corrosion resistance and good fabrication characteristics. Niobium plays a central role in precipitation strengthening, while titanium and aluminum contribute to the formation of strengthening phases during aging. Nickel supports the austenitic matrix, chromium contributes to oxidation resistance, and molybdenum provides additional solid solution strengthening. Solution treatment followed by aging develops the alloy’s characteristic mechanical properties by preparing the matrix and promoting the formation of strengthening precipitates. The resulting properties depend on the thermal processing sequence and final material condition.
The relatively slow aging response of inconel 718 helps limit hardening during fabrication and reduces susceptibility to cracking during heat treatment after welding. Forming and machining are generally easier in the solution annealed condition. Subsequent aging increases strength, while the selected solution treatment influences grain structure, ductility, and resistance to rupture under sustained loading.
Inconel 718 Corrosion Resistance
Inconel 718 resists corrosion in a variety of aqueous environments. Nickel contributes resistance to many organic and inorganic compounds and helps resist stress corrosion cracking caused by chloride ions. Chromium improves resistance to oxidizing media, while molybdenum contributes protection against pitting.
Its corrosion performance depends on temperature, solution chemistry, and metallurgical condition. Resistance to chloride stress corrosion cracking does not imply immunity to localized attack. Aggressive acidic chloride solutions require evaluation of pitting and crevice corrosion under the actual exposure conditions.
Inconel 718 Mechanical Properties
After solution treatment and aging, inconel 718 sheet and plate can meet room temperature minimum tensile and yield strengths of 180,000 psi (1241 MPa) and 150,000 psi (1034 MPa), respectively, with at least 12% elongation under applicable AMS 5596 requirements. The solution annealed condition provides lower strength and greater ductility.
Mechanical requirements vary with product form, dimensions, and heat treatment. These values should therefore be matched to the specified product and delivery condition.
Inconel 718 Temperature Characteristics
Inconel 718 retains high strength at temperatures up to approximately 650°C (1200°F), with useful properties extending toward 704°C (1300°F) under suitable loading and exposure conditions. It also maintains good ductility at cryogenic temperatures. Prolonged exposure near the upper temperature range can alter strengthening precipitates and reduce strength and creep resistance.
Oxidation resistance alone does not establish an allowable operating temperature. Thermal conductivity and thermal expansion increase with temperature, while elastic modulus decreases, making temperature and exposure duration essential considerations when assessing its mechanical performance.
Inconel 718 Products
Nickel Alloy 718 Product Types
With advanced equipment and expert craftsmanship, we create durable, high performance nickel alloy 718 products tailored to each project’s needs
Inconel 718 Data Sheet
Inconel Alloy 718 Data Sheet
Access / download the inconel 718 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 | 8.19 | |
|---|---|---|---|
| lb/in.3 | 0.296 | ||
| Melting Range | °F | 2300 - 2437 | |
| °C | 1260 - 1336 | ||
| Specific Heat (21°C) | Btu/lb-°F | 0.104 | |
| J/kg-°C | 435 | ||
| Permeability at 200 oersted | 15.9 kA/m | 1.0006 | |
| Curie Temperature | Annealed Material | °F | < -320 |
| °C | -196 | ||
| Annealed and Aged Material | °F | -170 | |
| °C | -112 | ||
| Permeability at 200 oersted and 70°F | Annealed Material | 1.0013 | |
| Annealed and Aged Material | 1.0011 | ||
Mechanical Properties
| Condition | Diameter, in.(mm) | Tensile Strength, ksi (Kg/cm2) min. | Yield Strength (0.2% Offset), ksi (Kg/cm2) | Elongation in 2 in. (50.8 mm) or 4D% minimum | Reduction of Area, % minimum | Impact Strength, ft•lb (Kg•m) min. aver. | Hardness, Rockwell C | ||
|---|---|---|---|---|---|---|---|---|---|
| minimum | maximum | minimum | maximum | ||||||
| Cold worked, solution annealed & aged | 0.5 (12.7) to 3 (76.2), inclusive | 150 (10,545) | 120 (8436) | 140 (9842) | 20 | 25 | 40 (5.55) | 30 | 40 |
| Hot worked, solution annealed & aged | 0.5 (12.7) to 8 (203.2), inclusive | 150 (10,545) | 120 (8436) | 140 (9842) | 20 | 25 | 40 (5.55) | 30 | 40 |
| Hot worked, solution annealed & aged | 8 (203.2) to 10 (254), inclusive | 150 (10,545) | 120 (8436) | 140 (9842) | 20 | 25 | 40 (5.55) | 30 | 40 |
Inconel 718 Standards
UNS N07718 / W.Nr. 2.4668 Specifications & Standards
From production to inspection, we meet strict quality standards, addressing tolerance and chemical composition needs
ASTM B983
Seamless Pipe & Tube
ASTM B637
Bar and Forging
ASTM B670
Plate, Sheet and Strip
ASTM B906
Plate, Sheet and Strip
SAE AMS 5662
Bar and Forging
SAE AMS 5663
Bar and Forging
SAE AMS 5664
Bar and Forging
SAE AMS 5832
Welding Wire
SAE AMS 5962
Round Bar and Wire
SAE AMS 5596
Plate, Sheet and Strip
SAE AMS 5597
Plate, Sheet and Strip
SAE AMS 5950
Plate, Sheet and Strip
SAE AMS 5589
Seamless Tube
SAE AMS 5590
Seamless Tube
AWS A5.14 ERNiFeCr-2
Filler Metal
Inconel 718 SHOW
Nickel Alloy 718 Showcase
From initial samples to large scale production, we supply high quality inconel 718 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 718 Quotation Process
From detailed consultation to final delivery, we make custom inconel 718 product orders simple and convenient. With exceptional customer service, we anticipate your needs, provide professional solutions, and ensure on time delivery
Inconel 718 Supplier - Arialloy
From Production to Quality Control, Every Step Tailored to Perfection
Arialloy inconel alloy 718 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 718 Applications
UNS N07718 / W.Nr. 2.4668 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 718 Knowledge
Nickel Alloy 718 Wiki
Arialloy explores with you every factor that influences your choice
including chemical composition, mechanical properties, temperature characteristics, price, and manufacturing process
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Custom Inconel 718 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
Purchasing inconel 718 is simple: provide your requirements by email at sales@arialloy.com or through the form below. Our sales team will prepare a detailed quotation for you. If you agree with the offer, send us your PO. We will issue a PI for payment, and manufacturing will start after the prepayment is received. We will notify you when the material is finished.
Our sales department generally responds to inconel 718 quote requests within 24 hours. If your requirements are incomplete or outside our quotation capability, we will get in touch with you promptly.
For FOB inconel 718 orders, the customer generally chooses and appoints the freight forwarder. We then work with the nominated logistics company to complete the local procedures required for shipment. If you prefer a fully coordinated service, we can arrange transportation for you and check the freight separately.
The price of an alloy can move significantly when the cost of its metallic raw materials changes. Nickel, chromium, iron, niobium, and molybdenum are key contributors to the cost of many superalloys, meaning fluctuations in their prices can be passed through to the finished material.
We have in house melting capabilities for inconel 718 supported by a fleet of over 30 vacuum smelting and electroslag remelting furnaces. The available capacities are 50 kg, 200 kg, 1,000 kg, and 5,000 kg. Such a wide range enables us to accommodate production runs of different sizes, including smaller orders.
Our inconel 718 test reports are prepared and supplied before shipment in accordance with recognized industry standards. They document key material information, including chemistry, mechanical properties, dimensions, and heat number.
Material proportions are carefully controlled while melting inconel 718, and chemical analysis is used to monitor the resulting composition. We then perform PMI testing on the finished product and can obtain third-party laboratory results for further verification.