Alloy K500，Monel K500 Sheet，UNS N05500，EFORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA18，American Specs:AMS 4676 Bar and Forgings QQ-N-286，German Specs:WS 2.4375

### **Alloy K-500 / Monel K-500 Sheet / UNS N05500 - Age-Hardenable Nickel-Copper Alloy Sheet** **Product Overview** Monel K-500 Sheet (UNS N05500) is a premium precipitation-hardenable nickel-copper alloy supplied in thin sheet form, combining the excellent corrosion resistance of Monel 400 with significantly enhanced strength and hardness through age-hardening treatment. This product is specifically designed for applications requiring lightweight, formable components that maintain high strength and superior corrosion resistance in demanding environments, from marine to chemical processing industries. **Chemical Composition (ASTM B865)** | Element | Content (%) | |---------|-------------| | **Nickel (Ni)** | 63.0 min (Balance) | | **Copper (Cu)** | 27.0-33.0 | | **Aluminum (Al)** | 2.30-3.15 | | **Titanium (Ti)** | 0.35-0.85 | | **Iron (Fe)** | 2.0 max | | **Manganese (Mn)** | 1.5 max | | **Carbon (C)** | 0.25 max | | **Silicon (Si)** | 0.5 max | | **Sulfur (S)** | 0.01 max | *Age-hardening occurs through precipitation of Ni₃(Ti,Al) intermetallic compounds during thermal treatment.* **Physical Properties** | Property | Value | |----------|-------| | **Density** | 8.44 g/cm³ (0.305 lb/in³) | | **Melting Range** | 1315-1350°C (2400-2460°F) | | **Electrical Resistivity** | 65.0 μΩ·cm (Annealed) | | **Thermal Conductivity** | 17.0 W/m·K (at 100°C) | | **Thermal Expansion Coefficient** | 13.9 μm/m·°C (20-100°C) | | **Modulus of Elasticity** | 179 GPa (26,000 ksi) | | **Magnetic Permeability** | <1.005 (Essentially non-magnetic) | **Mechanical Properties (Sheet - Aged Condition)** *Aging Treatment: 1100°F (593°C) for 16 hours, furnace cool* | Property | Solution Annealed | Age-Hardened | |----------|-------------------|--------------| | **Tensile Strength** | 620-760 MPa (90-110 ksi) | 930-1130 MPa (135-164 ksi) | | **Yield Strength (0.2% Offset)** | 275-415 MPa (40-60 ksi) | 620-895 MPa (90-130 ksi) | | **Elongation in 2"** | 35-45% | 22-32% | | **Hardness** | 70-85 HRB | 24-33 HRC | | **Shear Strength** | 380 MPa (55 ksi) | 585 MPa (85 ksi) | **Available Sheet Specifications** **Product Forms** - Cold-rolled sheet - Hot-rolled sheet - Annealed and pickled finish - Polished finish (various grades) **Thickness Ranges** - **Standard Sheet**: 0.5 mm to 6 mm (0.020" to 0.250") - **Thin Sheet**: 0.1 mm to 0.5 mm (0.004" to 0.020") - **Width**: Up to 1500 mm (60") - **Length**: Up to 3000 mm (120") **Surface Finish Options** - No. 1 - Hot-rolled, annealed, and pickled - No. 2D - Cold-rolled, dull finish - No. 2B - Cold-rolled, bright finish - Polished finishes (various grits) **Key Characteristics & Advantages** 1. **High Strength-to-Weight Ratio**: Excellent mechanical properties in thin sections 2. **Superior Corrosion Resistance**: Outstanding performance in seawater, acids, and alkaline environments 3. **Excellent Formability**: Good bending and forming characteristics in annealed condition 4. **Age-Hardenable**: Can be strengthened after forming operations 5. **Low Magnetic Permeability**: Essentially non-magnetic in all conditions 6. **Good Weldability**: Can be welded using standard techniques with proper procedures **Product Applications** **Marine & Offshore** - Boat hull and deck components - Marine instrumentation panels - Seawater system covers and guards - Marine hardware components **Chemical Processing** - Chemical tank linings and covers - Reactor vessel jackets - Acid storage container components - Process equipment covers **Aerospace & Defense** - Aircraft structural panels - Missile body sections - Radar component housings - Electronic enclosure panels **Industrial Equipment** - Heat exchanger shrouds and covers - Pump diaphragms and covers - Spring components - Electrical connector components **Architecture & Construction** - Marine architecture panels - Chemical plant wall panels - Specialty roofing applications - Decorative marine fixtures **International Standards** | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | **N05500** | Unified Numbering System | | **ASTM** | B865 | Standard Specification for Precipitation Hardening Nickel-Copper-Aluminum-Titanium Alloy Plate, Sheet, and Strip | | **ASTM** | B906 | Standard Specification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip | | **ASME** | SB865 | Boiler and Pressure Vessel Code Specification | | **AMS** | 4676 | Aerospace Material Specification (Reference for sheet applications) | | **DIN** | 2.4375 | German Standard Designation | | **EN** | NiCu30Al | European Standard | **Heat Treatment Specifications** - **Solution Annealing**: 1600-1650°F (870-900°C) followed by rapid cooling - **Aging Treatment**: 1100-1150°F (595-620°C) for 12-16 hours, furnace cooling - **Stress Relieving**: 1000-1100°F (540-595°C) for 1-2 hours, air cooling **Fabrication & Forming** **Forming Operations** - **Bending**: Minimum bend radius 2T (annealed), 4T (aged) - **Drawing**: Good deep drawing characteristics in annealed condition - **Stamping**: Suitable for blanking and punching operations - **Spinning**: Excellent for spun components in annealed condition **Welding & Joining** - **Welding Methods**: GTAW (TIG), GMAW (MIG), SMAW - **Filler Metals**: Monel 60, Monel 67, or matching composition - **Post-Weld Aging**: Required to restore full strength in HAZ **Surface Treatment** - **Pickling**: Nitric-hydrofluoric acid mixture - **Passivation**: Not required but can be bright dipped - **Plating**: Can be plated with nickel or other metals if required **Quality Assurance** All Monel K-500 sheet supplied with complete documentation: - Mill Test Certificates to ASTM/EN standards - Chemical analysis certificates - Mechanical test reports - Heat treatment records - Surface quality certifications - Dimensional inspection reports **Packaging & Handling** - Protective coating applied (paper or plastic) - Wooden crates for shipment - Moisture-proof wrapping for international transport - Edge protection for precision sheets **Conclusion** Monel K-500 Sheet (UNS N05500) offers an exceptional combination of high strength, excellent corrosion resistance, and good formability in thin sheet form. Its age-hardening capability allows manufacturers to form components in the soft condition and subsequently strengthen them through heat treatment. This versatility makes it ideal for applications across marine, aerospace, chemical processing, and industrial sectors where lightweight, corrosion-resistant, and high-strength sheet material is required for demanding service conditions.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 1708 gallon liquid totes Special package is available on request.