Monel 400
Monel 400 is a nickel-copper alloy known for good resistance to seawater, hydrofluoric acid and many neutral or reducing environments. It retains useful mechanical properties across a broad temperature range.
Monel 400 Grade Information
Monel 400 is a nickel-copper alloy known for good resistance to seawater, hydrofluoric acid and many neutral or reducing environments. It retains useful mechanical properties across a broad temperature range.
Flat-product material specification associated with Monel 400 (UNS N04400).
| Material specification | AMS 4544 |
|---|---|
| Material identification | N04400 |
| Product / supply condition | Annealed. |
Monel 400 Chemical Composition
Manufacturer alloy composition limits, mass %; selected elements only. These are not the complete acceptance limits of the standard on this page.
| Element / description | Mass % / reference value |
|---|---|
| Ni | 63.0 min (including Co) |
| Cu | 28.0–34.0 |
| Fe | 2.5 max |
| C | 0.30 max |
Monel 400 Mechanical Properties
Published reference values for the stated form and condition. Typical values are not specification acceptance limits.
| Product form / condition | Tensile (MPa) | 0.2% proof / yield (MPa) | Elongation (%) | Data basis |
|---|---|---|---|---|
| Annealed sheet; room temperature | 482–586 | 207–310 | 35–45 | Manufacturer typical ranges; elongation in 2 in. |
| Cold-rolled, annealed strip; room temperature | 482–586 | 172–310 | 35–55 | Manufacturer typical ranges; elongation in 2 in. |
Manufacturer reference data is shown for comparison. Use the selected AMS 4544 edition and certified material test results for acceptance. Confirm specimen direction, gauge length, thickness and heat treatment.
AMS 4544 Grade Reference
N04400
| Material specification | AMS 4544 |
|---|---|
| Product / supply condition | Annealed. |
| Comparison tables | View the AMS 4544 comparison tables |
| Material overview | View Monel 400 in Materials |
| Publisher reference | AMS 4544 publisher reference |
| Source reference | Special Metals — MONEL alloy 400 technical bulletin, composition, mechanical data and product specifications |
Specify Monel 400 for your gasket
Share your gasket dimensions, service conditions and quantity for Monel 400 material options and pricing.