MP159,MP159 Forgings,UNS R30159,E FORU

British Specs:，American Specs:AMS 5841 Bar AMS 5845 Bar AMS 5843 Bar，German Specs:

### Technical Data Sheet: MP159 / MP159 Forgings / UNS R30159 **Cobalt-Nickel-Chromium Superalloy Forgings** --- ### 1. Product Overview **MP159 Forgings** (UNS R30159) are manufactured through controlled thermomechanical processes that optimize the microstructure and mechanical properties of this advanced cobalt-nickel-chromium superalloy. The forging process enhances grain structure, eliminates porosity, and improves directional strength, resulting in components with superior performance at temperatures up to **650°C (1200°F)**. --- ### 2. Chemical Composition (Weight %) | Element | Content (%) | Key Characteristics | |---------|-------------|---------------------| | **Cobalt (Co)** | 25.0–30.0 | Matrix element providing high-temperature stability | | **Nickel (Ni)** | 25.0–30.0 | Austenitic structure formation | | **Chromium (Cr)** | 18.0–20.0 | Corrosion and oxidation resistance | | **Iron (Fe)** | 7.0–11.0 | Solid solution strengthening | | **Molybdenum (Mo)** | 6.0–8.0 | Solid solution and precipitation hardening | | **Titanium (Ti)** | 2.5–3.25 | Gamma prime (γ') precipitate formation | | **Niobium (Nb)** | 1.0–1.7 | Carbide and intermetallic formation | | **Aluminum (Al)** | 0.1–0.5 | Precipitation strengthening | | **Carbon (C)** | ≤ 0.04 | Controlled carbide formation | | **Manganese (Mn)** | ≤ 0.50 | Residual element | | **Silicon (Si)** | ≤ 0.50 | Residual element | --- ### 3. Physical Properties | Property | Value | |----------|-------| | **Density** | 8.31 g/cm³ (0.300 lb/in³) | | **Melting Range** | 1350–1400°C (2460–2550°F) | | **Thermal Conductivity** | 14.0 W/m·K at 100°C | | **Mean CTE (20-100°C)** | 12.8 µm/m·°C | | **Electrical Resistivity** | 1.12 µΩ·m at 25°C | | **Magnetic Permeability** | Essentially non-magnetic | --- ### 4. Mechanical Properties **Room Temperature Properties (Aged Condition):** - **Tensile Strength**: 1620–1790 MPa (235–260 ksi) - **Yield Strength (0.2% Offset)**: 1515–1655 MPa (220–240 ksi) - **Elongation**: 10–15% - **Reduction of Area**: 35–50% - **Hardness**: 44–48 HRC **Elevated Temperature Performance:** - **Stress Rupture Strength**: Excellent up to 650°C - **Creep Resistance**: Good maintained properties - **Fatigue Strength**: Outstanding in high-cycle applications --- ### 5. Forging Process & Capabilities **Forging Methods:** - **Open-Die Forgings**: For large, simple shapes - **Closed-Die Forgings**: For complex geometries - **Ring Rolling**: For circular components - **Press Forgings**: For high-volume production **Size Range:** - **Weight**: 1 kg to 1000 kg - **Maximum Dimensions**: 2000 mm length - **Ring Sizes**: 200 mm to 2500 mm OD **Heat Treatment:** - **Solution Treatment**: 1040–1065°C (1900–1950°F) - **Aging Treatment**: 650–760°C (1200–1400°F) - Multistage - **Quenching**: Water quench after solution treatment --- ### 6. Applications **Aerospace & Defense:** - Turbine shafts and disks - Engine mounting components - Afterburner parts - Rocket motor components **Power Generation:** - Gas turbine wheels - Turbine blades and vanes - Combustion chamber components - Nuclear reactor core components **Industrial Equipment:** - High-temperature valves - Pump shafts and impellers - Heat treatment fixtures - Chemical processing equipment **Medical Devices:** - Surgical instrument components - Orthopedic implants - Medical fastener forgings - Dental instrument parts --- ### 7. International Standards | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | R30159 | Material designation | | **AMS** | 5842 | Bar and Forgings | | **ASTM** | F562 | Wrought Cobalt-Nickel Alloy | | **ISO** | 5832-6 | Implants for Surgery | | **ASME** | - | Code Case Applications | --- ### 8. Quality Assurance **Testing & Inspection:** - **Ultrasonic Testing**: per ASTM A388 - **Liquid Penetrant Inspection**: per ASTM E165 - **Radiographic Examination**: per ASTM E94 - **Macro-Etch Testing**: for grain flow verification - **Mechanical Testing**: per applicable specifications **Certification:** - Mill Test Certificate EN 10204 3.1/3.2 - Chemical and Mechanical Property Reports - Heat Treatment Documentation - Non-Destructive Testing Reports --- ### 9. Design Advantages - **Superior grain structure** and directional properties - **Enhanced fatigue resistance** - **Improved stress rupture strength** - **Better impact toughness** - **Reduced material anisotropy** - **Elimination of casting defects** - **Optimized mechanical properties** --- ### 10. Machining & Fabrication **Machining Guidelines:** - **Tool Material**: Carbide recommended - **Cutting Speeds**: 10–15 m/min for roughing - **Feed Rates**: 0.1–0.2 mm/rev - **Coolant**: Heavy-duty soluble oil required - **Chipbreaker Inserts**: Recommended **Post-Forging Processing:** - **Solution Annealing** after rough machining - **Stress Relief** after heavy machining - **Final Machining** to required dimensions - **Surface Treatment** as specified **Welding Characteristics:** - **Not generally recommended** for fusion welding - **Specialized techniques** required if necessary - **Post-weld heat treatment** essential if welded --- ### 11. Technical Advantages - **Ultra-high strength** with maintained toughness - **Excellent fatigue performance** in cyclic loading - **Good corrosion resistance** in various environments - **Superior strength-to-weight ratio** - **Maintains mechanical properties** at elevated temperatures - **Enhanced reliability** through forged structure - **Proven performance** in life-critical applications --- **Note:** MP159 Forgings offer exceptional performance for the most demanding high-strength applications. The material requires specialized processing and heat treatment to achieve its renowned properties. All forgings are supplied with complete traceability and certification. Custom forging designs and heat treatment cycles are available to meet specific application requirements. Consult with our technical team for design optimization and manufacturing 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 2270 gallon liquid totes Special package is available on request.