MP35N,MP35N Wire,UNS R30035,E FORU

British Specs:，American Specs:AMS 5844 VIM VAR Bar AMS 5845 VIM VAR Bar AMS 5758 VIM VAR Bar，German Specs:

### Technical Data Sheet: MP35N / MP35N Wire / UNS R30035 **Cobalt-Nickel-Chromium-Molybdenum Superalloy Wire Product** --- ### 1. Product Overview **MP35N Wire** (UNS R30035) is manufactured from the advanced cobalt-nickel-chromium-molybdenum superalloy in wire form, strengthened through cold working and aging treatments. This product offers an exceptional combination of **ultra-high strength** (up to 2200 MPa), excellent corrosion resistance, and non-magnetic properties, making it ideal for fasteners, springs, and critical components operating in demanding environments across medical, aerospace, and industrial sectors. --- ### 2. Chemical Composition (Weight %) | Element | Content (%) | Key Characteristics | |---------|-------------|---------------------| | **Cobalt (Co)** | 35.0 | Matrix element providing strength and corrosion resistance | | **Nickel (Ni)** | 35.0 | Austenitic structure and corrosion resistance | | **Chromium (Cr)** | 20.0 | Oxidation and corrosion resistance | | **Molybdenum (Mo)** | 10.0 | Strength enhancement and corrosion resistance | | **Titanium (Ti)** | 1.0 | Precipitation strengthening | | **Iron (Fe)** | ≤ 1.0 | Residual element | | **Manganese (Mn)** | ≤ 0.15 | Residual element | | **Silicon (Si)** | ≤ 0.15 | Residual element | | **Carbon (C)** | ≤ 0.025 | Controlled for carbide formation | --- ### 3. Physical Properties | Property | Value | |----------|-------| | **Density** | 8.43 g/cm³ (0.304 lb/in³) | | **Melting Range** | 1315–1440°C (2400–2625°F) | | **Thermal Conductivity** | 12.9 W/m·K at 100°C | | **Mean CTE (20-100°C)** | 12.8 µm/m·°C | | **Electrical Resistivity** | 1.04 µΩ·m at 25°C | | **Magnetic Permeability** | Essentially non-magnetic (μ < 1.002) | --- ### 4. Mechanical Properties **Solution Annealed Condition:** - **Tensile Strength**: 800–1000 MPa (116–145 ksi) - **Yield Strength (0.2% Offset)**: 380–550 MPa (55–80 ksi) - **Elongation**: 50–60% - **Reduction of Area**: 55–65% - **Hardness**: 90–100 HRB **Cold Worked + Aged Condition:** - **Tensile Strength**: 1900–2200 MPa (276–319 ksi) - **Yield Strength (0.2% Offset)**: 1790–2000 MPa (260–290 ksi) - **Elongation**: 8–12% - **Reduction of Area**: 35–45% - **Hardness**: 50–55 HRC --- ### 5. Product Specifications **Wire Size Range:** - **Diameter**: 0.1 mm to 6.0 mm (0.004" to 0.236") - **Tolerance**: ±0.005 mm for fine wire, ±0.02 mm for heavy wire - **Spool Sizes**: 1 kg to 50 kg standard **Available Forms:** - **Bright Finish**: Smooth, oxide-free surface - **Pickled Finish**: Matte surface for improved adhesion - **Coated Variants**: Special coatings available **Packaging Options:** - Plastic or wooden spools - Protective coil packaging - Straight lengths (1-3 meters) --- ### 6. Applications **Medical Devices:** - Orthopedic fixation wires - Surgical suture wires - Dental arch wires - Implantable device components - Medical fastener wire **Aerospace & Defense:** - Aircraft control cables - Engine spring components - Fastener manufacturing - Instrumentation springs **Oil & Gas Industry:** - Downhole tool components - Valve spring wire - Corrosion-resistant fasteners - Well completion equipment **Industrial Applications:** - High-strength springs - Chemical processing components - Marine equipment fasteners - Precision instrument springs --- ### 7. International Standards | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | R30035 | Material designation | | **AMS** | 5844 | Bar and wire applications | | **ASTM** | F562 | Wrought cobalt-nickel alloy | | **ISO** | 5832-6 | Implants for surgery | | **AWS** | Special | Welding applications | --- ### 8. Fabrication Characteristics **Forming & Processing:** - **Cold Forming**: Excellent in solution-annealed condition - **Springback**: Predictable and consistent - **Wire Drawing**: Requires intermediate annealing - **Heat Treatment**: Essential for optimal properties **Heat Treatment:** - **Solution Treatment**: 1010–1065°C (1850–1950°F) - **Aging Treatment**: 480–650°C (900–1200°F) for 4–8 hours - **Quenching**: Water quench after solution treatment **Surface Preparation:** - **Cleaning**: Essential before heat treatment - **Pickling**: For oxide removal - **Coating**: Special coatings for specific applications --- ### 9. Quality Assurance **Standard Testing:** - Dimensional verification - Surface quality inspection - Tensile testing by lot - Hardness testing - Chemical analysis certification **Special Testing Available:** - Fatigue testing for spring applications - Stress rupture testing - Microstructural examination - Corrosion resistance testing --- ### 10. Technical Advantages - **Ultra-high strength** in wire form - **Excellent corrosion resistance** in harsh environments - **Non-magnetic properties** - **Superior fatigue performance** in spring applications - **Biocompatible** for medical applications - **Maintains mechanical properties** in corrosive media - **Reliable performance** in critical applications --- ### 11. Special Considerations **Wire Drawing:** - Multiple passes with intermediate annealing - Proper die design essential - Adequate lubrication required - Controlled reduction per pass **Spring Manufacturing:** - Form in solution-treated condition - Age after forming for optimal properties - Consider springback in design - Proper heat treatment essential **Medical Applications:** - Additional cleanliness requirements - Special packaging for sterile applications - Full traceability essential - Biocompatibility certification --- **Note:** MP35N Wire offers exceptional performance for high-strength applications where corrosion resistance and non-magnetic properties are required. The material requires specialized processing and proper heat treatment to achieve optimal mechanical properties. Custom sizes, special tempers, and specific packaging requirements are available upon request. Consult with our technical team for application-specific recommendations and processing guidance.

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 2286 gallon liquid totes Special package is available on request.