Alloy 401,Monel 401 Foil,Shim,,E FORU

British Specs:，American Specs:，German Specs:

**Technical Datasheet: Monel® 401 Foil & Shim (UNS N04401)** --- ### **Overview** Monel® 401 Foil and Shim (UNS N04401) are precision thin-gauge products manufactured from nickel-copper alloy, specifically engineered for applications requiring controlled thermal expansion characteristics and excellent electrical conductivity. These products offer unique thermal properties combined with good corrosion resistance, making them ideal for electronic, electrical, and precision engineering applications. --- ### **Chemical Composition (Weight %)** | Element | Content (%) | Role | |---------|-------------|------| | Nickel (Ni) | 40.0-45.0 | Base element, provides matrix structure | | Copper (Cu) | Balance (~52-57) | Electrical conductivity, corrosion resistance | | Iron (Fe) | 1.0-2.0 | Strength enhancement | | Manganese (Mn) | 1.5-2.5 | Deoxidizer, improves hot workability | | Silicon (Si) | 0.1-0.5 | Deoxidizer | | Carbon (C) | 0.1-0.25 | Strength enhancement | | Sulfur (S) | ≤0.015 | Controlled impurity | | Magnesium (Mg) | 0.05-0.20 | Desulfurization, grain refinement | --- ### **Physical Properties** | Property | Value | |----------|-------| | Density | 8.83 g/cm³ (0.319 lb/in³) | | Melting Range | 1300-1350°C (2370-2460°F) | | Thermal Conductivity | 25.2 W/m·K (at 20°C) | | Coefficient of Thermal Expansion | 14.5 μm/m·°C (20-100°C) | | Specific Heat Capacity | 440 J/kg·K | | Electrical Resistivity | 0.49 μΩ·m | | Modulus of Elasticity | 179 GPa (26 × 10⁶ psi) | | Magnetic Permeability | <1.005 (slightly magnetic when cold worked) | --- ### **Mechanical Properties** **Annealed Condition:** - **Tensile Strength**: 480-550 MPa (70-80 ksi) - **Yield Strength (0.2% Offset)**: 170-240 MPa (25-35 ksi) - **Elongation**: 35-45% - **Hardness**: HRB 65-75 **Cold Rolled Condition:** - **Tensile Strength**: 620-690 MPa (90-100 ksi) - **Yield Strength**: 480-550 MPa (70-80 ksi) - **Elongation**: 15-25% - **Hardness**: HRB 85-95 --- ### **Product Specifications** **Foil (Thickness < 0.1 mm):** - **Thickness Range**: 0.025-0.1 mm (0.001-0.004 inches) - **Width Range**: 50-600 mm (2-24 inches) - **Standard Tolerance**: ±10% of thickness **Shim (Thickness 0.1-1.0 mm):** - **Thickness Range**: 0.1-1.0 mm (0.004-0.040 inches) - **Width Range**: 50-600 mm (2-24 inches) - **Standard Tolerance**: ±0.005 mm for precision shims --- ### **Product Applications** **Foil Applications:** - Electronic shielding components - Precision instrument diaphragms - Glass-to-metal seals - Electrical insulation layers - Thermal management systems - Cryogenic container seals - Vacuum system gaskets - Semiconductor packaging **Shim Applications:** - Precision alignment shims - Bearing and bushing shims - Electronic component spacing - Machinery calibration shims - Aerospace structural shims - Instrumentation spacers - Thermal expansion compensators - Vibration damping elements **Industry-Specific Applications:** - **Electronics**: RF shielding, connector components, circuit board shields - **Aerospace**: Engine shims, thermal barriers, electronic housing seals - **Medical**: Surgical instrument components, implantable device parts - **Automotive**: Sensor shims, electrical system components - **Industrial**: Precision machinery shims, alignment fixtures --- ### **Fabrication Characteristics** **Stamping & Blanking:** - Excellent for precision stamping operations - Clean edge quality when blanked - Suitable for progressive die operations - Minimal burr formation - Good dimensional stability **Forming & Bending:** - Excellent cold forming characteristics - Predictable springback characteristics - Minimum bend radius: 1× thickness for foil, 2× thickness for shim - Suitable for complex formed shapes **Heat Treatment:** - **Annealing Temperature**: 870-980°C (1600-1800°F) - **Soaking Time**: 5-15 minutes - **Cooling**: Rapid air or water quench - **Stress Relieving**: 480-650°C (900-1200°F) when required --- ### **International Standards** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | **ASTM** | B127 | Standard Specification for Nickel-Copper Alloy Sheet, Strip, and Foil | | **ASME** | SB-127 | Code-approved version | | **SAE** | AMS 7232 | Electronic Components, Glass Sealing Alloy | | **UNS** | N04401 | Unified Numbering System | | **DIN** | 2.4360 | Material Number 2.4360 | | **ISO** | 6208 | Nickel alloy foil and strip specifications | --- ### **Quality Assurance** **Testing and Certification:** - Dimensional accuracy verification - Chemical composition certification - Mechanical property testing - Surface quality inspection - Edge condition examination - Heat treatment certification - EN 10204 3.1/3.2 certification available **Special Testing Available:** - Flatness testing - Surface roughness measurement - Electrical conductivity testing - Thermal expansion coefficient verification - Corrosion resistance testing --- ### **Key Advantages** 1. **Controlled thermal expansion** matching glass and ceramic materials 2. **Excellent electrical conductivity** for electronic applications 3. **Good corrosion resistance** in various environments 4. **Precision dimensional tolerances** for critical applications 5. **Superior fabricability** for complex component manufacturing --- ### **Packaging and Handling** **Standard Packaging:** - Protective interleaved coils for foil - Flat sheets in protective wrapping for shim stock - Custom cut shapes in sealed packages - Moisture-resistant packaging available **Storage Recommendations:** - Store in clean, dry conditions - Protect from surface damage and contamination - Avoid exposure to corrosive atmospheres - Maintain in original packaging until use --- **Notes:** - "Monel" is a registered trademark of Special Metals Corporation - All foil and shim products supplied with material certification - Custom sizes and special tolerances available upon request - Technical data represents typical values *For specific application requirements and technical assistance, consult with materials engineering specialists.*

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 2935 gallon liquid totes Special package is available on request.