Incoloy 800H VS Inconel 601 materials
Incoloy 800H VS Inconel 601 materials
Incoloy 800H is an iron-based alloy containing approximately 30-35% nickel, suitable for moderate high-temperature environments; while Inconel 601 is a nickel-based alloy (nickel content greater than 58%) containing approximately 21-25% chromium and 1-1.7% aluminum, possessing excellent high-temperature oxidation resistance and carburization resistance. Therefore, Inconel 601 is more suitable for extreme high-temperature environments. In contrast, Incoloy 800H strikes a balance between cost and performance, making it suitable for demanding environments such as chemical processing. Furthermore, Incoloy generally has processing characteristics similar to stainless steel, making it easier to machine.
What is the maximum operating temperature of INCOLOY 800H?
The 800H alloy exhibits good creep rupture properties at temperatures above 1100°F (600°C). Due to its maximum titanium and aluminum content of 0.7%, it maintains good ductility even after prolonged use at temperatures below 1290°F (700°C). For applications below 1100°F (600°C), the standard annealed 800 alloy is recommended.
Chemical composition comparison of INCOLOY 800H and Inconel 601
| Element | Inconel 601 (UNS N06601) | Incoloy 800H (UNS N08810) |
|---|---|---|
| Nickel (Ni) | 58.0 – 63.0 % | 30.0 – 35.0 % |
| Chromium (Cr) | 21.0 – 25.0 % | 19.0 – 23.0 % |
| Iron (Fe) | Balance | ≥ 39.5 % |
| Aluminum (Al) | 1.0 – 1.7 % | 0.15 – 0.60 % |
| Carbon (C) | ≤ 0.10 % | 0.05 – 0.10 % |
| Titanium (Ti) | ≤ 0.15 % | 0.15 – 0.60 % |
| Manganese (Mn) | ≤ 1.0 % | ≤ 1.5 % |
| Silicon (Si) | ≤ 0.5 % | ≤ 1.0 % |
| Copper (Cu) | ≤ 1.0 % | ≤ 0.75 % |
| Sulfur (S) | ≤ 0.015 % | ≤ 0.015 % |
| Phosphorus (P) | – | ≤ 0.045 % |
| Nitrogen (N) | – | – |
| Al + Ti | – | 0.30 – 1.20 % |
Comparison of mechanical properties between INCOLOY 800H and Inconel 601
| Property | Inconel 601 (Annealed) | Incoloy 800H (Annealed) |
|---|---|---|
| Tensile Strength (MPa, min) | 655 – 895 | 450 – 585 |
| Yield Strength (0.2% Offset, MPa, min) | 345 | 170 – 310 |
| Elongation (% in 50 mm, min) | 30 | 30 |
| Hardness (Rockwell B) | 95 HRB max | 79 – 95 HRB |
| Hardness (Brinell HB) | 150 – 220 HB | 120 – 190 HB |
| Density (g/cm³) | 8.11 | 7.94 |
| Melting Range (°C) | 1300 – 1370 | 1350 – 1400 |
| Modulus of Elasticity (GPa) | 210 | 200 |
Incoloy 800H (UNS N08810)
Main advantages: Excellent high-temperature creep strength, stress rupture strength, and resistance to carburization/oxidation. Better weldability.
Best applications: Furnace components, heat exchangers, process piping, carburizing fixtures, electric heating elements.
Inconel 601 (UNS N06601)
Main advantages: Due to its high nickel and aluminum content, it possesses excellent high-temperature strength and outstanding resistance to oxidation, thermal fatigue, and carburization.
Best applications: Radiant tubes, furnace linings, burner nozzles, heating elements, aerospace components.
Main Differences
Basic Composition: Incoloy 800H is an iron-based alloy; Inconel 601 is a nickel-based alloy.
Nickel Content: Inconel 601 has a much higher nickel content (>60%) than Incoloy 800H (approximately 30-35%).
Performance Focus: 800H excels in creep resistance and carburization resistance; 601 excels in oxidation resistance and overall high-temperature strength.
Applications: 800H is used for furnace components/piping; 601 is used in extremely high-temperature areas, such as burner components/radiant tubes.
Comparison of applications for Incoloy 800H and Inconel 601
| Field / Application | Inconel 601 | Incoloy 800H |
|---|---|---|
| Industrial Furnaces & Heat Treatment | Radiant tubes, muffles, annealing trays, sintering belts, kiln furniture | Radiant tubes, furnace muffles, retorts, conveyor systems, heat exchanger tubes |
| Chemical & Petrochemical Processing | Catalyst support grids, reactor internals, chlorination equipment | Steam reformer tubes, pyrolysis tubes, cracking furnace tubes, waste heat boilers |
| Power Generation | Combustor liners, heat recovery steam generator (HRSG) tubes, boiler components | Superheater tubes, reheater tubes, boiler headers, steam piping |
| Aerospace & Gas Turbines | Combustion chambers, afterburner liners, turbine seals | Combustor liners, exhaust ducts, turbine casings |
| Pollution Control & Incineration | Waste incinerator internals, thermal oxidizer components, flue gas ducts | Incinerator grates, waste heat recovery systems, exhaust stacks |
| Glass & Ceramic Manufacturing | Sintering trays, glass melting furnace components, kiln rollers | Glass tank reinforcements, molding equipment, kiln supports |
| Steel & Metal Processing | Annealing covers, roller hearths, soaking pit linings | Continuous annealing lines, galvanizing pots, heat treating baskets |
| Nuclear Energy | Control rod guide tubes, high‑temperature reactor core components | Steam generator tubing (secondary side), heat exchanger components |
| Marine & Offshore | – | Seawater cooling systems, offshore platform heat exchangers |
| Automotive & Exhaust Systems | High‑performance exhaust manifolds, turbocharger housings | Exhaust gas recirculation (EGR) systems, catalytic converter shells |
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
About Gnee Steel
Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com for a quote.
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