Haynes 230 vs Monel 400: 34% composition overlap. Significantly different materials serving different application areas.
Haynes 230 vs Monel 400
Side-by-side chemical composition and mechanical property comparison.
Overview
Haynes 230
2.4733
Nickel-chromium-tungsten alloy — THE combustor can material for gas turbines. Outstanding oxidation resistance to 1149°C for prolonged exposure. Excellent long-term thermal stability (no sigma/mu phase after 16000h at 649-870°C). Lower thermal expansion than most high-temp alloys. Lanthanum addition improves oxide scale adherence. Used for gas turbine combustion cans, transition ducts, furnace retorts, and catalyst grids in nitric acid production.
Monel 400
2.4360
Nickel-copper alloy with excellent resistance to seawater, hydrofluoric acid, and alkaline environments. One of the few alloys resistant to HF acid at all concentrations. Used for marine engineering, chemical processing, oil refinery piping, and valve/pump components.
| Haynes 230 | Monel 400 | |
|---|---|---|
| Material Number | 2.4733 | 2.4360 |
| Category | Nickel Alloys | Nickel Alloys |
| Standard | ASTM B435 | ASTM B127 |
Chemical composition (wt%)
| Element | Haynes 230 | Monel 400 | Overlap |
|---|---|---|---|
| C | 0.05–0.1% | 0–0.3% | OK |
| Si | 0.25–0.75% | 0–0.5% | Partial |
| Mn | 0.3–1% | 0–2% | OK |
| S | — | 0–0.024% | — |
Mechanical properties
| Property | Haynes 230 | Monel 400 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 760 | ≥ 480 | MPa |
| yield_strength | ≥ 310 | ≥ 170 | MPa |
| elongation | ≥ 40 | ≥ 35 | % |
Compatibility Assessment
Haynes 230 and Monel 400 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 Haynes 230 the same as Monel 400?
Haynes 230 and Monel 400 have a 34% composition overlap. They are generally not directly interchangeable.
Can I replace Haynes 230 with Monel 400?
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 Haynes 230 and Monel 400?
The main differences are in the following elements: Si. Haynes 230 is a Nickel Alloys grade, while Monel 400 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.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.