At Namo Alloy, we are specialized stockists of Monel 400 Round Bars, Pipes, and Pipe Fittings. This Nickel-Copper solid-solution alloy is globally recognized for its exceptional resistance to a wide variety of corrosive conditions, ranging from rapidly flowing seawater to highly volatile hydrofluoric acid. Unlike standard steels, Monel 400 retains its superior toughness over a broad temperature range, from sub-zero cryogenic levels up to 450°C. Our range of Seamless Pipes and precision-machined Fittings is designed for high-stress applications in marine engineering, chemical processing, and hydrocarbon industries. Every product is 100% mill-certified to ASTM B164 (Bars) and B165 (Pipes), ensuring the metallurgical integrity required for critical oil and gas refineries and salt production plants.
| Grade | Ni (Nickel) | Cu (Copper) | Fe (Iron) | Mn (Manganese) | Si (Silicon) | C (Carbon) | Al (Aluminum) | Ti (Titanium) |
|---|---|---|---|---|---|---|---|---|
| Monel 400 | 63.0% Min | 28.0 - 34.0% | 2.5% Max | 2.0% Max | 0.5% Max | 0.3% Max | - | - |
| Monel K500 | 63.0% Min | 27.0 - 33.0% | 2.0% Max | 1.5% Max | 0.5% Max | 0.25% Max | 2.30 - 3.15% | 0.35 - 0.85% |
| Grade | Tensile Strength (MPa) min. | Yield Strength 0.2% Proof (MPa) min. | Elongation (%) min. | Density (g/cm³) | Melting Range (°C) | Hardness (Brinell) |
|---|---|---|---|---|---|---|
| Monel 400 | 550 MPa | 240 MPa | 28% | 8.80 | 1300 - 1350°C | 135 - 200 HB |
| Monel K500 | 965 MPa | 690 MPa | 20% | 8.44 | 1315 - 1350°C | 265 - 340 HB |
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ASTM B164, ASME SB164, QQ-N-281 |
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Size Range
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5mm to 350mm Diameter (Round) | 6mm to 80mm (Hex) |
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Finish
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Cold Drawn, Bright Polished, Centerless Ground, Hot Rolled |
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Length
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Random, Fix Length (Up to 6000mm) |
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ASTM B165 (Seamless), ASTM B725 (Welded), ASME SB165 |
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1/8" NB to 12" NB |
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Schedules
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SCH 5, 10, 20, 40, 80, 120, 160, XXS |
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Manufacturing
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Seamless, ERW, Welded, Fabricated |
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ASTM B366 / ASME SB366, MSS SP-43 |
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Available Types
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Elbows (45/90/180°), Tees (Equal/Unequal), Reducers (Con/Ecc), Caps, Stub Ends |
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Size
Range
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1/2" to 24" (Buttweld) | 1/8" to 4" (Forged/Threaded) |
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Radiography Test, Pitting Corrosion Test, Micro Analysis |
Quality Assurance: All Monel 400 products are supplied with original Mill Test Certificates (MTC) as per EN 10204 3.1. We offer Third Party Inspection (TPI) from agencies like SGS, TUV, and Lloyd's.
Namo Alloy is a leading stockist and global exporter of premium Stainless Steel, Carbon Steel, and High Nickel Alloys.
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