MP35N,MP35N ,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 / UNS R30035 **Cobalt-Nickel-Chromium-Molybdenum Superalloy** --- ### 1. Product Overview **MP35N** (UNS R30035) is a cobalt-nickel-chromium-molybdenum superalloy known for its unique combination of **ultra-high strength**, excellent corrosion resistance, and non-magnetic properties. The alloy achieves its exceptional mechanical properties through a combination of cold working and aging treatments, making it suitable for the most demanding applications in aerospace, medical, and oil and gas industries. --- ### 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 | | **Melting Range** | 1315–1440°C | | **Thermal Conductivity** | 12.9 W/m·K at 100°C | | **Coefficient of Thermal Expansion** | 12.8 μm/m·°C (20–100°C) | | **Electrical Resistivity** | 1.04 μΩ·m | | **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 Forms & Applications **Available Forms:** - Bar, rod, and wire - Sheet, strip, and foil - Forgings and rings - Tubing and pipe **Typical Applications:** - **Aerospace**: Fasteners, springs, landing gear components - **Medical**: Implants, surgical instruments, orthopedic devices - **Oil & Gas**: Downhole tools, valve components, springs - **Marine**: Fasteners, connectors, and springs --- ### 6. International Standards | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | R30035 | Material designation | | **AMS** | 5844 | Bar, forgings, and ring | | **ASTM** | F562 | Wrought cobalt-nickel alloy | | **ISO** | 5832-6 | Implants for surgery | --- ### 7. Heat Treatment **Solution Treatment:** - 1010–1065°C (1850–1950°F) - Rapid cooling (water quench) **Aging Treatment:** - 480–650°C (900–1200°F) - 4–8 hours at temperature --- ### 8. Fabrication Notes **Machining:** - Use carbide tools with positive rake angles - Moderate speeds with heavy feeds - Adequate coolant required **Welding:** - Not generally recommended for fusion welding - Resistance and friction welding possible with proper techniques **Cold Working:** - Excellent cold formability in annealed condition - Requires intermediate annealing for severe deformation --- ### 9. Corrosion Resistance - **Excellent resistance** to stress corrosion cracking - **Good pitting and crevice corrosion** resistance - **Resistant** to salt water and many chemical environments - **Maintains properties** in sour gas environments --- ### 10. Key Advantages - **Ultra-high strength** with good toughness - **Excellent corrosion resistance** - **Non-magnetic properties** - **Good fatigue strength** - **Maintains properties** at elevated temperatures - **Proven reliability** in critical applications --- **Note:** MP35N is a premium high-strength alloy suitable for the most demanding applications. Proper processing and heat treatment are essential to achieve optimal properties. Consult with our technical team for specific application 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 2274 gallon liquid totes Special package is available on request.