Alloy 28 / Sanicro 28 vs Inconel 601: 20% composition overlap. Significantly different materials serving different application areas.
Alloy 28 / Sanicro 28 vs Inconel 601
Side-by-side chemical composition and mechanical property comparison.
Overview
Alloy 28 / Sanicro 28
1.4563
Super-austenitic stainless steel (Fe-31Ni-27Cr-3.5Mo-1Cu) with ultra-low carbon. Exceptional resistance to sulfuric acid, phosphoric acid, and chloride stress corrosion cracking. Solution-annealed: Rm 500–750 MPa, Rp0.2 ≥220 MPa, A ≥35%. Density 8.0 g/cm³, PREN ~39–47. UNS N08028, ASTM B709/B668. Applications: phosphoric acid evaporators, sulfuric acid piping, oil/gas sour service (NACE MR0175), seawater heat exchangers, nuclear fuel reprocessing. Alleima trade name Sanicro 28.
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 28 / Sanicro 28 | Inconel 601 | |
|---|---|---|
| Material Number | 1.4563 | 2.4851 |
| Category | Nickel Alloys | Nickel Alloys |
| Standard | EN 10088 / ASTM B709 | EN 10095 |
Chemical composition (wt%)
| Element | Alloy 28 / Sanicro 28 | Inconel 601 | Overlap |
|---|---|---|---|
| C | ≤ 0.02% | 0–0.1% | OK |
| Si | ≤ 1% | 0–0.5% | OK |
| Mn | ≤ 2.5% | 0–1% | OK |
| S | — | 0–0.015% | — |
Mechanical properties
| Property | Alloy 28 / Sanicro 28 | Inconel 601 | Unit |
|---|---|---|---|
| tensile_strength | 500–750 | 550–750 | MPa |
| yield_strength | ≥ 220 | 205–310 | MPa |
| elongation | ≥ 35 | 30–50 | % |
Compatibility Assessment
Alloy 28 / Sanicro 28 and Inconel 601 have significantly different compositions (20% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Alloy 28 / Sanicro 28 the same as Inconel 601?
Alloy 28 / Sanicro 28 and Inconel 601 have a 20% composition overlap. They are generally not directly interchangeable.
Can I replace Alloy 28 / Sanicro 28 with Inconel 601?
Generally not recommended. The compositions differ significantly (20% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between Alloy 28 / Sanicro 28 and Inconel 601?
The main differences are in the following elements: Cr, Ni, Cu. Alloy 28 / Sanicro 28 is a Nickel Alloys grade, while Inconel 601 is a Nickel Alloys grade.
Related Comparisons
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