Inconel 718
UNS N07718 / W.Nr. 2.4668
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
お客様のプロジェクトに最適なニッケル合金材料が確実に選定されるよう
物理的性質
| 密度 | g/cm3 | 8.19 | |
|---|---|---|---|
| lb/in.3 | 0.296 | ||
| 融点範囲 | °F | 2300 - 2437 | |
| °C | 1260 - 1336 | ||
| Specific Heat (21°C) | Btu/lb-°F | 0.104 | |
| J/kg-°C | 435 | ||
| 200オーステッドにおける透磁率 | 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 | ||
機械的特性
| Condition | Diameter, in.(mm) | Tensile Strength, ksi (Kg/cm2) min. | 降伏強度 (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
製造から検査に至るまで、当社は厳しい品質基準を満たし、公差や化学組成に関する要件に対応しています。
ASTM B983
シームレスパイプ・チューブ
ASTM B637
Bar and Forging
ASTM B670
板、シート、ストリップ
ASTM B906
板、シート、ストリップ
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
板、シート、ストリップ
SAE AMS 5597
板、シート、ストリップ
SAE AMS 5950
板、シート、ストリップ
SAE AMS 5589
Seamless Tube
SAE AMS 5590
Seamless Tube
AWS A5.14 ERNiFeCr-2
溶加材
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.
要件をアップロードしてください
まずは、ご連絡先情報に加え、製品の種類、寸法、数量、および必要な規格をご記入ください。CAD図面、仕様書、または特別な公差要件がある場合は、それらをアップロードしてください。
見積もりとデザインレビューの依頼
12時間以内に、詳細な見積書と、製造性（DFM）に関するフィードバックを盛り込んだ（カスタム）設計案をお送りいたします。これにより、お客様のカスタムプロジェクトのコスト面での実現可能性を確保し、かかる費用について明確な見通しをご提供いたします。
ご注文の確認と生産開始
お見積もりとデザインをご承認いただくと、確認の連絡をいただいた翌朝、お客様のプロジェクトは当社の制作スケジュールに組み込まれます。
配送・お届けについて
通常、受注生産品は20～45営業日以内に発送されます。在庫品およびサンプルは48時間以内に発送されます。
たった4つのステップ
Custom Inconel 718 Quotation Process
綿密な打ち合わせから最終納品に至るまで、私たちは custom inconel 718 product ご注文は簡単で便利です。卓越したカスタマーサービスにより、お客様のニーズを先読みし、専門的なソリューションをご提供するとともに、納期厳守をお約束します。
Inconel 718 Supplier - Arialloy
生産から品質管理まで、すべての工程を完璧を目指してきめ細かく調整しています
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
当社は多岐にわたる業界にサービスを提供しており、厳格な品質管理と本格的な生産に注力し、専門的なノウハウと細部へのこだわりをもって、お客様のビジョンを現実のものにします。
Inconel 718 Knowledge
Nickel Alloy 718 Wiki
Arialloyは、お客様の選択に影響を与えるあらゆる要素について、お客様と共に検討いたします
化学組成、機械的特性、温度特性、価格、製造工程などを含む
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Inconel 600 対 Inconel 601
Inconel 合金600（UNS N06600 / W.Nr. 2.4816）は、高温下での優れた耐食性と機械的安定性を実現するために設計された、代表的なニッケル・クロム・鉄系超合金です。この合金は、
Monel 400 対 Inconel 600
この表が示すように、Monel 400にはニッケルと銅が大量に含まれているため、海水や多くの酸による腐食に対して優れた耐性を発揮しますが、一方でクロムが
その他のInconelの成績
Inconel 合金グレード
Inconel合金の全ラインナップをご覧いただき、材料の選択肢を広げ、最適なニッケル合金をお選びください。
Custom Inconel 718 FAQs
当社の専門家チームが、お客様のビジョンを現実のものにするため、あらゆる段階でサポートいたします。関連するサポートについては、よくある質問（FAQ）をご覧ください。
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.