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.
Legacy British sheet and plate specification with manufacturer-documented nickel and nickel-alloy designations.
| Material specification | BS 3072 |
|---|---|
| Material identification | NA13 / N04400 |
| Product / supply condition | Historical sheet and plate; confirm temper and heat treatment. |
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 BS 3072 edition and certified material test results for acceptance. Confirm specimen direction, gauge length, thickness and heat treatment.
BS 3072 Grade Reference
NA13 / N04400
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