Alloy 800H / Incoloy 800H vs Inconel 601: 34% composition overlap. Significantly different materials serving different application areas.
Alloy 800H / Incoloy 800H vs Inconel 601
Side-by-side chemical composition and mechanical property comparison.
Overview
Alloy 800H / Incoloy 800H
1.4958
Iron-nickel-chromium alloy (Fe-32Ni-21Cr) with controlled carbon (0.05–0.10%) and grain size for optimized creep-rupture strength above 600°C. Solution-annealed: Rm ≥450 MPa, Rp0.2 ≥170 MPa, A ≥30%. Density 7.94 g/cm³, E-Modul 196 GPa. Excellent resistance to carburization, oxidation, and nitriding to 1100°C. UNS N08810, ASTM B407/B408/B409. Applications: ethylene cracking tubes, reformer furnace tubes, heat exchangers, nuclear steam generators, chemical reactors. Variant 800HT (N08811/1.4959) has tighter Al+Ti control for even higher creep strength.
Inconel 601
2.4851
Nickel-chromium-iron alloy with aluminum for outstanding high-temperature oxidation resistance up to 1200°C. The Al forms a protective oxide scale resistant to spalling under cyclic thermal conditions. Better oxidation resistance than Inconel 600 (which lacks Al). Used for furnace hardware (baskets, trays, fixtures), radiant tubes, thermocouple protection tubes, catalyst support grids, and thermal reactors in automotive exhaust systems.
| Alloy 800H / Incoloy 800H | Inconel 601 | |
|---|---|---|
| Material Number | 1.4958 | 2.4851 |
| Category | Nickel Alloys | Nickel Alloys |
| Standard | EN 10302 / ASTM B407 | EN 10095 |
Chemical composition (wt%)
| Element | Alloy 800H / Incoloy 800H | Inconel 601 | Overlap |
|---|---|---|---|
| C | 0.05–0.1% | 0–0.1% | OK |
| Si | ≤ 1% | 0–0.5% | OK |
| Mn | ≤ 1.5% | 0–1% | OK |
| S | — | 0–0.015% | — |
Mechanical properties
| Property | Alloy 800H / Incoloy 800H | Inconel 601 | Unit |
|---|---|---|---|
| density | ≥ 7.94 | ≥ 8.11 | g/cm3 |
| tensile_strength | ≥ 450 | 550–750 | MPa |
| yield_strength | ≥ 170 | 205–310 | MPa |
Compatibility Assessment
Alloy 800H / Incoloy 800H and Inconel 601 have significantly different compositions (34% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Alloy 800H / Incoloy 800H the same as Inconel 601?
Alloy 800H / Incoloy 800H and Inconel 601 have a 34% composition overlap. They are generally not directly interchangeable.
Can I replace Alloy 800H / Incoloy 800H with Inconel 601?
Generally not recommended. The compositions differ significantly (34% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between Alloy 800H / Incoloy 800H and Inconel 601?
The main differences are in the following elements: Cr, Ni, Al. Alloy 800H / Incoloy 800H is a Nickel Alloys grade, while Inconel 601 is a Nickel Alloys grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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