Alloy 405，Monel 405 Wire，UNS N04405，EFORU

British Specs:，American Specs:AMS 4674 Bar and Forgings AMS 7234 QQ-N-281 MIL-N-894，German Specs:

### **Alloy 405 / Monel 405 Wire (UNS N04405) - Product Introduction** **Overview** **Alloy 405** (Monel 405) is a free-machining nickel-copper alloy specifically engineered with controlled sulfur content to provide superior machinability while maintaining good corrosion resistance. **Monel 405 Wire** is manufactured to precise dimensional standards, offering exceptional versatility for applications requiring extensive machining operations combined with reliable performance in corrosive environments. This product form maintains the alloy's enhanced machining characteristics while providing consistent quality for automated production processes. The UNS **N04405** designation ensures consistent material quality with optimized machining performance. Monel 405 wire is particularly valuable for high-volume production of small components requiring complex machining operations and good corrosion resistance. --- ### **Chemical Composition** | Element | Content (%) | | :--- | :--- | | **Nickel (Ni)** | 63.0 (Minimum) | | **Copper (Cu)** | 28.0 - 34.0 | | **Iron (Fe)** | 2.5 (Maximum) | | **Manganese (Mn)** | 2.0 (Maximum) | | **Carbon (C)** | 0.3 (Maximum) | | **Silicon (Si)** | 0.5 (Maximum) | | **Sulfur (S)** | 0.025 - 0.060 | **Key Feature:** The controlled sulfur addition (0.025-0.060%) significantly improves machinability by promoting the formation of manganese sulfide inclusions that act as chip breakers during machining operations. --- ### **Physical Properties** | Property | Value | | :--- | :--- | | **Density** | 8.80 g/cm³ (0.318 lb/in³) | | **Melting Point** | 1350 °C (2460 °F) | | **Electrical Resistivity** | 51 μΩ·cm at 20°C | | **Thermal Conductivity** | 22 W/m·K at 20°C | | **Thermal Expansion Coefficient** | 13.9 μm/m·°C (20-100°C) | | **Magnetic Permeability** | Essentially non-magnetic | --- ### **Mechanical Properties** Typical mechanical properties for Monel 405 wire: | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation (%) | Hardness (Rockwell B) | | :--- | :--- | :--- | :--- | :--- | | **Annealed** | 550-690 MPa (80-100 ksi) | 240-380 MPa (35-55 ksi) | 35-45 | 65-80 | | **Hard Drawn** | 690-965 MPa (100-140 ksi) | 620-895 MPa (90-130 ksi) | 5-25 | 85-100 | **Machinability Rating:** 30% (Compared to 20% for Monel 400) --- ### **International Standards** | Standard Organization | Standard Number | Specification | | :--- | :--- | :--- | | **ASTM** | ASTM B164 | Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire | | **ASME** | SB-164 | Boiler and Pressure Vessel Code | | **SAE** | AMS 4674 | Free-Machining Nickel-Copper Alloy Wire | | **DIN** | 2.4362 | NiCu30FeS | | **EN** | EN 2.4362 | Nickel-Copper Alloy Wire | | **UNS** | N04405 | Alloy 405 | --- ### **Product Specifications & Applications** **Wire Specifications:** - **Diameter Range:** 0.010" to 0.500" (0.25mm to 12.7mm) - **Spool Sizes:** Standard 10lb, 25lb, 50lb, 100lb spools - **Temper:** Annealed, Quarter Hard, Half Hard, Full Hard - **Tolerance:** Standard commercial or precision tolerances - **Surface Finish:** Bright, Pickled, or Coated **Automated Machining Applications:** - Screw machine products - CNC machined components - Electrical connectors - Fastener production - Precision instrument parts **Electronic Components:** - Lead frames - Connector pins - Spring contacts - Relay components - Battery contacts **Industrial Applications:** - Wire cloth and weaving - Filter elements - Screening materials - Spring manufacturing - Fastener production **Marine Applications:** - Marine cable weaving - Fishing gear components - Netting and mesh for aquaculture - Corrosion-resistant fasteners - Marine hardware components --- ### **Machining Advantages** **Superior Machinability Characteristics:** - **Chip Formation:** Produces small, broken chips for easy disposal - **Surface Finish:** Excellent surface quality in machining operations - **Tool Life:** Extended tool life compared to Monel 400 - **Production Efficiency:** Higher machining speeds and feeds achievable - **Consistent Performance:** Uniform machining characteristics **Recommended Machining Parameters:** - **Turning Speed:** 40-70 SFM - **Drilling Speed:** 30-50 SFM - **Feed Rates:** 0.003-0.010 inches per revolution - **Tool Material:** Carbide with positive rake angles - **Coolant:** Water-soluble oils recommended --- ### **Fabrication Capabilities** **Wire Forming:** - **Bending:** Excellent in annealed condition - **Coiling:** Suitable for spring production - **Heading:** Good for cold heading operations - **Swaging:** Suitable for reduction operations - **Threading:** Excellent thread formation **Joining Methods:** - **Resistance Welding:** Good for spot and projection welding - **Brazing:** Excellent results with silver-based alloys - **Soldering:** Good with appropriate fluxes - **Mechanical Joining:** Suitable for crimped connections --- ### **Key Advantages** - **Enhanced Machinability:** 50% better machining characteristics than Monel 400 - **Good Corrosion Resistance:** Suitable for seawater, acids, and alkaline solutions - **Precision Dimensional Control:** Consistent diameter and roundness - **Non-Magnetic Properties:** Essential for electronic applications - **High Strength:** Good mechanical properties in various tempers - **Economic Production:** Reduced machining time and tooling costs - **Consistent Quality:** Uniform properties throughout wire length - **Versatile Applications:** Suitable for both machining and forming operations **Design Considerations:** - Not recommended for high-temperature oxidizing applications above 400°C - Welding requires special procedures due to sulfur content - Optimal for automated machining and high-volume production - Suitable for most corrosive services except highly oxidizing conditions --- ### **Quality Assurance** **Testing and Certification:** - Chemical analysis certification - Mechanical testing verification - Dimensional accuracy certification - Surface quality inspection - Spooling quality verification - Traceability documentation **Special Testing Available:** - Corrosion testing per ASTM standards - Machinability testing - Surface roughness measurement - Mechanical property testing at temperature Monel 405 Wire (UNS N04405) provides manufacturers with an optimal combination of superior machinability, good corrosion resistance, and consistent quality in wire form. Its enhanced machining characteristics make it particularly valuable for high-volume production of electronic components, fasteners, connectors, and precision mechanical parts requiring reliable performance in corrosive environments. The wire form offers excellent versatility for both machining operations and formed wire applications across multiple industries including electronics, automotive, marine, and general industrial sectors.

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 1688 gallon liquid totes Special package is available on request.