ZYTC Alloy is an ISO 9001 and AS 9120B certified superalloy manufacturer and supplier, offering Alloy 400 (NiCu30Fe) at factory-direct prices with full material traceability and fast global delivery. Nickel-copper alloy 400 (UNS N04400 / W.Nr. 2.4360 / NiCu30Fe) is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments. Alloy 400 is widely used in many fields, especially marine and chemical processing applications.
Product Forms & Availability – Alloy 400 (NiCu30Fe / UNS N04400)| Product Form | ASTM Standard | Stock Status |
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| Seamless Tubes | ASTM B163 | In stock | | Welded Tubes | ASTM B725 | In stock | | Plates | ASTM B127 | In stock | | Bars | ASTM B164 | In stock | | Flanges | ASTM B564 | In stock | | Fittings | ASTM B366 | In stock |
For all stock availability, contact Sales.
Specifications – Alloy 400 (UNS N04400 / 2.4360 / NiCu30Fe)| Product Form | ASTM Specification |
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| Seamless Tubes | ASTM B163 | | Welded Tubes | ASTM B725 | | Plates | ASTM B127 | | Bars | ASTM B164 | | Flanges | ASTM B564 | | Fittings | ASTM B366 |
Chemical Composition | Chemical Composition (Weight %) | Alloy 400 (UNS N04400) Specification |
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| Nickel (Ni) | 63.0 - 70.0 | | Copper (Cu) | 28.0 - 34.0 | | Iron (Fe) | 2.5 max. | | Manganese (Mn) | 2.0 max. | | Silicon (Si) | 0.5 max. | | Carbon (C) | 0.3 max. | | Sulfur (S) | 0.024 max. |
| Physical Properties | Metric | Imperial |
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| Density | 8.80 g/cm³ | 0.318 lb/in³ | | Melting Range | 1300 - 1350°C | 2370 - 2460°F | | Modulus of Elasticity | 179 GPa | 26.0 × 10⁶ psi | | Thermal Conductivity | 21.8 W/m·K | 151 BTU·in/hr·ft²·°F | | Coefficient of Expansion (20-100°C) | 13.9 µm/m·°C | 7.7 µin/in·°F | | Electrical Resistivity | 0.547 µΩ·m | 0.547 µΩ·m | | Magnetic Properties | Weakly magnetic at room temperature | — |
| Mechanical Properties (Bar – Annealed) | Metric | Imperial |
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| Tensile Strength (min.) | 480 MPa | 70 ksi | | Yield Strength (0.2% offset, min.) | 170 MPa | 25 ksi | | Elongation (min.) | 35% | 35% | | Hardness (Annealed) | 110 HB | 110 HB |
Thermal Treatment| Process | Temperature | Cooling | Purpose |
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| Soft Annealing | 700 - 900°C (1292 - 1652°F) | Fast air cool | Relieve stresses, restore ductility | | Stress-Relief Annealing | 550 - 650°C (1022 - 1202°F) | Air cool | Reduce residual stresses | | Hot Forming | 800 - 1000°C (1472 - 1832°F) | — | Shape material at elevated temperature |
Fabrication Summary – Quick Reference| Process | Key Recommendations |
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| Welding | TIG, MIG, plasma, SAW; low heat input; ≤150°C interpass | | Machining | Low speed/feed; constant engagement; water-based coolant | | Cold forming | Excellent; work hardens; stress-relief after; intermediate anneal for heavy forming | | Soft annealing | 700–900°C / fast air cool | | Stress-relief annealing | 550–650°C | | Hot forming | 800–1000°C |
Applications| Industry | Typical Applications |
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| Marine Engineering | Seawater piping, propeller shafts, pump components, valve parts, marine fasteners | | Chemical Processing | Hydrocarbon processing equipment, chlorinated solvent handling, crude oil distillation towers | | Oil & Gas | Crude petroleum stills, downhole components, wellhead equipment | | Power Generation | Boiler feed water heaters, de-aerating heaters, industrial heat exchangers | | General Industrial | Gasoline and freshwater tanks, valves, pumps, shafts, fittings, fasteners |
Delivery Lead Times (after pre-payment confirmation)| Stock Status | Delivery Time |
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| Products in stock | Within 3 days | | Raw material in stock | Within 10 days | | Re-melting required | 15 – 25 days |
Contact UsRequest a quote for NiCu30Fe / Alloy 400 (UNS N04400 / 2.4360 / Monel 400) – Solid-Solution Nickel-Copper Alloy – High Strength & Toughness – Excellent Corrosion Resistance – Marine & Chemical Processing . Please provide: 📧 Email: daisy@zytcsteel.com
📱 WhatsApp / WeChat: +86 17335753350 |
