MP35N,MP35N Strip,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 Strip / UNS R30035 **Cobalt-Nickel-Chromium-Molybdenum Superalloy Strip Product** --- ### 1. Product Overview **MP35N Strip** (UNS R30035) is precision-rolled from the advanced cobalt-nickel-chromium-molybdenum superalloy family, 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 in thin gauge materials, making it ideal for precision components requiring high reliability in medical, aerospace, and electronic applications. --- ### 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% - **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% - **Hardness**: 50–55 HRC --- ### 5. Product Specifications **Strip Dimensions:** - **Thickness**: 0.05 mm to 2.0 mm (0.002" to 0.079") - **Width**: 10 mm to 400 mm (0.394" to 15.75") - **Length**: Coils up to 800 meters, cut lengths available **Tolerance Standards:** - **Thickness Tolerance**: ±0.003 mm for precision grades - **Width Tolerance**: ±0.1 mm for slit edges - **Camber**: 1 mm per meter maximum - **Flatness**: 2 mm/m maximum **Available Conditions:** - **Solution Annealed**: Optimal for forming and stamping - **Cold Worked**: Various reduction levels available - **Aged**: Full mechanical properties - **Temper Rolled**: Improved flatness and surface finish **Surface Finish Options:** - **Standard Mill Finish** - **Bright Annealed** - **Special Polished** (upon request) - **Pickled Finish** --- ### 6. Applications **Medical Devices:** - Surgical staple stock - Implantable device components - Medical instrument springs - Orthopedic fixation devices **Aerospace & Defense:** - Aircraft control system springs - Missile guidance components - Electronic connector components - Instrumentation springs **Electronics & Precision Instruments:** - High-reliability connector springs - Watch and instrument springs - Precision spring components - Electronic contact strips **Industrial Applications:** - Chemical processing diaphragms - High-strength spring components - Marine equipment springs - Oil field instrument components --- ### 7. International Standards | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | R30035 | Material designation | | **AMS** | 5844 | Strip and foil applications | | **ASTM** | F562 | Wrought cobalt-nickel alloy | | **ISO** | 5832-6 | Implants for surgery | | **ASTM** | B248 | Tolerances for strip products | --- ### 8. Fabrication Characteristics **Forming & Stamping:** - **Blankability**: Excellent in annealed condition - **Minimum Bend Radius**: 2T for 90° bends - **Punch Clearance**: 5–7% of material thickness - **Springback**: 15–20% typical - **Deep Drawing**: Good with proper tool design **Joining Methods:** - **Resistance Welding**: Suitable with proper parameters - **Laser Welding**: Preferred for precision joints - **Brazing**: Using specialized high-temperature alloys - **Adhesive Bonding**: With high-strength epoxies **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 --- ### 9. Quality Assurance **Standard Testing:** - Dimensional verification with laser scanners - Surface roughness measurement - Tensile testing by lot - Hardness testing per ASTM E18 - Chemical analysis certification **Special Testing Available:** - Microstructural examination per ASTM E112 - Grain size measurement and analysis - Fatigue testing for spring applications - Corrosion resistance testing --- ### 10. Technical Advantages - **Ultra-high strength** in thin strip configurations - **Excellent corrosion resistance** in various environments - **Non-magnetic properties** - **Superior fatigue performance** in spring applications - **Biocompatible** for medical applications - **Precision thickness control** for consistent manufacturing - **Maintains mechanical properties** in harsh environments --- ### 11. Special Considerations **Medical Applications:** - Enhanced cleanliness standards - Special packaging for sterile applications - Full material traceability - Biocompatibility certification **Spring Manufacturing:** - Form in solution-treated condition - Age after forming for optimal properties - Consider springback in design - Proper heat treatment essential --- **Note:** MP35N Strip offers exceptional performance for high-strength precision 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, tolerances, and special processing are available upon request. Consult with our technical team for application-specific recommendations.

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 2281 gallon liquid totes Special package is available on request.