Monel 400 Alloy
Trusted supplier of superior Monel 400 alloy products for global applications, optimal performance and exceptional durability.
About Monel 400
Trusted supplier of superior Monel 400 alloy products for global applications, optimal performance and exceptional durability.
Monel 400 (UNS N04400) is a solid-solution nickel-copper alloy containing roughly 63% nickel and 30% copper. It resists flowing seawater, hydrofluoric acid, sulphuric and alkaline media, and retains strength and toughness from cryogenic temperatures up to about 480 °C, making it a standard for marine, offshore and HF-alkylation service.
Steelco Metal & Alloys stocks Monel 400 (UNS N04400) in Mumbai, India as a stockist, importer and exporter, and ships to 40+ countries. Every dispatch carries EN 10204 3.1 (3.2 on request) mill test certificates, PMI verification and is open to third-party inspection.
Available forms and size range for Monel 400
Available Forms
- Sheet
- Plate
- Round Bar
- Pipe
- Tube
- Flanges
- Fittings
- Forgings
Size Range
- Sheets 0.3–100 mm
- Coils 0.3–12 mm
- Bars 0.5–300 mm
- Pipes 1/2"–32" NB
Chemical composition of Monel 400 (% by weight)
Values are per the governing ASTM / ASME product specification. A single value means a maximum; a range shows the specified minimum and maximum. Balance is iron.
| Ni | Cu | Fe | Mn | C | Si | S |
|---|---|---|---|---|---|---|
| 63.0–Balance | 28.0–34.0 | ≤ 2.50 | ≤ 2.00 | ≤ 0.30 | ≤ 0.50 | ≤ 0.024 |
| range | range | max | max | max | max | max |
Mechanical properties of Monel 400 (annealed, room temperature)
| Property | Typical Value |
|---|---|
| Tensile Strength (min) | 480 MPa (70 ksi) |
| Yield Strength (0.2%) | 170 MPa (25 ksi) |
| Elongation in 50 mm | 35% min |
| Hardness (Rockwell B) | 75 approx |
Monel 400 specifications and international equivalents
| Attribute | Details |
|---|---|
| ASTM / ASME | ASTM B127 / B164 / B165 / B366 · UNS N04400 |
| EN / DIN | 2.4360 (NiCu30Fe) |
| JIS | NW 4400 |
| UNS | UNS N04400 |
| Density | 8.80 g/cm³ |
| Size Range | Sheets 0.3–100 mm · Coils 0.3–12 mm · Bars 0.5–300 mm · Pipes 1/2"–32" NB |
| Certifications | EN 10204 3.1 / 3.2 MTC · PMI · Third-party inspection |
Use our free metal weight calculator — bars, sheets, plates, pipes and sections.
Typical applications for Monel 400
Every dispatch is traceable, tested and certified.
Material is supplied with EN 10204 3.1 (3.2 on request) mill test certificates, PMI and spectro verification, and is open to third-party inspection by TUV, SGS, BV, Lloyd’s and IRS from our Mumbai warehouse.
EN 10204 3.1 / 3.2
Mill test certificate with every consignment.
PMI & Spectro
Positive material identification before dispatch.
Third-party Inspection
TUV · SGS · BV · Lloyd's · IRS welcome.
Export Documentation
Full set prepared for 40+ countries.
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