Incoloy 800H Material Properties
UNS N08810 / W.Nr. 1.4958 Overview
Explore the chemical composition, corrosion resistance, mechanical properties, and temperature characteristics of incoloy 800h for optimal resistance, strength, and stability
Incoloy 800H Chemical Composition
Incoloy 800H Material Properties Overview
As a manufacturer and supplier in China, Arialloy supplies incoloy 800H products at competitive prices.
Incoloy 800H (UNS N08810 / W.Nr. 1.4958) is an austenitic iron, nickel and chromium alloy combining resistance to high temperature corrosion with enhanced creep strength. Its composition contains 30.0 to 35.0% nickel and 19.0 to 23.0% chromium, with iron forming the balance. Nickel stabilizes the austenitic structure, while chromium supports a protective surface oxide. A carbon range of 0.05 to 0.10% distinguishes incoloy 800H from standard incoloy 800. Solution annealing produces an average grain size of ASTM No. 5 or coarser. Together, the specified carbon content and coarse grain structure improve resistance to creep deformation and stress rupture during extended exposure to elevated temperatures. Aluminum and titanium additions also influence precipitation behavior and mechanical stability during prolonged exposure to heat.
The alloy can be formed and welded using conventional methods suitable for austenitic alloys. Welding consumables should be selected according to service temperature and joint properties. Suitable options include inconel filler metal 82 for moderate temperature conditions and inconel filler metal 617 when greater strength at elevated temperatures is required.
Incoloy 800H Corrosion Resistance
Incoloy 800H resists oxidation, carburization and many nitriding atmospheres. Chromium promotes a protective oxide layer, while nickel helps maintain oxidation resistance during thermal cycling. The alloy also offers useful resistance to chloride stress corrosion cracking.
Exposure to approximately 540°C to 760°C can cause sensitization, increasing susceptibility to intergranular corrosion in certain aqueous environments. This is particularly relevant after welding or extended exposure to heat. Performance therefore depends on temperature, exposure history and medium composition, particularly when the material encounters corrosive condensates or aggressive cleaning solutions.
Incoloy 800H Mechanical Properties
Solution annealed incoloy 800H plate and bar can be supplied with room temperature tensile strength of 450 to 700 MPa, minimum 0.2% proof strength of 170 MPa, and minimum elongation of 30%, subject to specification and dimensional limits. Cold working increases strength and hardness while reducing ductility. The annealed structure also permits substantial deformation before intermediate annealing.
These values describe specified material conditions. Acceptance requirements must follow the ordered product standard, dimensions, heat treatment and test orientation.
Incoloy 800H Temperature Characteristics
Incoloy 800H offers improved creep and stress rupture strength above approximately 600°C compared with standard incoloy 800. A representative elevated temperature service range is 600°C to 950°C. Its austenitic structure provides good stability during prolonged thermal exposure, while carbon content and grain size support resistance to deformation under sustained loading. Permissible operating temperature depends on stress, exposure duration, atmosphere and applicable code requirements.
Oxidation test temperatures should not be interpreted as continuous load bearing limits, since oxidation resistance and creep resistance describe different performance characteristics.
Incoloy 800H Products
Nickel Alloy 800H Product Types
With advanced equipment and expert craftsmanship, we create durable, high performance nickel alloy 800h products tailored to each project’s needs
Incoloy 800H Data Sheet
Incoloy Alloy 800H Data Sheet
Access / download the incoloy 800h 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 | 7.94 | |
|---|---|---|---|
| lb/in.3 | 0.287 | ||
| 融点範囲 | °F | 2475 - 2525 | |
| °C | 1357 - 1385 | ||
| Specific Heat | 32-212°F | Btu/lb•°F | 0.11 |
| 0-100°C | J/kg•°C | 460 | |
| Permeability at 70°F (21°C) and 200 oersted (15.9 kA/m) | Annealed | 1.014 | |
| Hot-Rolled | 1.009 | ||
| Curie Temperature | °F | -175 | |
| °C | -115 | ||
機械的特性
| Temperature | Hardness BHN | 引張強度 | 降伏強度 (0.2% オフセット) | |||
|---|---|---|---|---|---|---|
| °F | °C | ksi | MPa | ksi | MPa | |
| 80 | 27 | 126 | 77.8 | 536 | 21.7 | 150 |
| 800 | 425 | – | 67.5 | 465 | 18.8 | 130 |
| 1000 | 540 | 90 | 62.7 | 432 | 13.0 | 90 |
| 1200 | 650 | 84 | 54.8 | 378 | 13.5 | 93 |
| 1300 | 705 | 82 | 47.7 | 329 | 15.8 | 109 |
| 1400 | 760 | 74 | 34.2 | 236 | 13.1 | 90 |
Incoloy 800H Standards
UNS N08810 / W.Nr. 1.4958 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 B163
凝縮器および熱交換器用チューブ
ASTM B407
シームレスパイプ・チューブ
ASTM B829
シームレスパイプ・チューブ
ASTM B514
溶接管
ASTM B775
溶接管
ASTM B515
溶接管
ASTM B751
溶接管
ASTM B366
溶接継手
ASTM B408
Rod and Bar
ASTM B564
鍛造品
ASTM B409
板、シート、ストリップ
ASTM B906
板、シート、ストリップ
ASTM A240
板、シート、ストリップ
ASTM A480
板、シート、ストリップ
Incoloy 800H SHOW
Nickel Alloy 800H Showcase
From initial samples to large scale production, we supply high quality incoloy 800h products and help you achieve your manufacturing goals.


























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たった4つのステップ
Custom Incoloy 800H 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 incoloy 800h 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。
Incoloy 800H 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 incoloy alloy 800h 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

Incoloy 800H Knowledge
Nickel Alloy 800H 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
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Custom Incoloy 800H 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。
The first step is to send us your incoloy 800h requirements through sales@arialloy.com or the form below. We will then send you a detailed quotation. If you decide to place the order, provide your PO and we will issue a PI for payment. Once the prepayment is received, we will start production and keep you informed when the material is completed.
Our quotation turnaround for incoloy 800h is normally within 24 hours. If we find that more information is needed or a quotation cannot be issued, our team will contact you promptly.
The normal arrangement for FOB incoloy 800h is that the customer selects the freight forwarder. After receiving the forwarder’s details, we cooperate with them on the local logistics procedures. If you prefer a more streamlined service, we can also organize transportation and provide a separate freight quotation.
Because the composition of an alloy involves several metals, changes in individual metal prices can affect the overall material cost. nickel, iron, and chromium are particularly important in superalloy pricing, making their market movements an important reason for alloy price changes.
We produce the incoloy 800h melt internally using our own furnace equipment. There are more than 30 vacuum smelting and electroslag remelting furnaces at our facility, with capacities from 50 kg to 5,000 kg. This range is particularly useful for customers who do not require large quantities.
Yes, the required incoloy 800h material test report is supplied prior to shipment. It provides traceable information on the applicable standard, chemical composition, mechanical properties, dimensions, and heat number.
Our incoloy 800h quality checks cover both production and final inspection. Material ratios are controlled during smelting, chemical analysis tracks composition, and PMI testing is performed on completed products. Independent laboratory analysis can be added for further verification.










