MP159,MP159 Tube,UNS R30159,E FORU

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

### Technical Data Sheet: MP159 / MP159 Tube / UNS R30159 **Cobalt-Nickel-Chromium Superalloy Tubular Products** --- ### 1. Product Overview **MP159 Tube** (UNS R30159) represents the tubular form of this advanced cobalt-nickel-chromium superalloy, designed for applications requiring ultra-high strength and excellent corrosion resistance in extreme environments. These tubes maintain exceptional mechanical properties (up to 1790 MPa tensile strength) at temperatures up to **650°C (1200°F)**, making them suitable for critical fluid conveyance, structural, and instrumentation applications. --- ### 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% - **Hardness**: 44–48 HRC **Elevated Temperature Performance:** - **Useful Temperature Range**: Up to 650°C (1200°F) - **Stress Rupture Strength**: Excellent maintained properties - **Creep Resistance**: Good performance under load --- ### 5. Product Specifications **Tube Size Range:** - **Outside Diameter**: 3 mm to 50 mm (0.125" to 2") - **Wall Thickness**: 0.5 mm to 5 mm (0.020" to 0.197") - **Length**: Standard 3-6 meters, custom lengths available **Manufacturing Processes:** - **Seamless Tube**: Cold drawn for high integrity - **Welded Tube**: Available for specific applications - **Surface Finish**: Bright annealed, pickled, or polished **Tolerance Standards:** - **OD Tolerance**: ±0.05 mm for precision tubes - **Wall Tolerance**: ±10% standard, ±5% special - **Straightness**: 1.5 mm/m maximum --- ### 6. Applications **Aerospace & Defense:** - Aircraft hydraulic tubing - Missile guidance system components - Engine sensor conduits - High-pressure fluid lines **Medical Devices:** - Surgical instrument tubing - Orthopedic device components - Medical gas delivery systems - Implantable device housings **Industrial Applications:** - High-pressure instrumentation - Chemical processing equipment - Oil and gas downhole tools - Power generation components **Special Applications:** - Nuclear instrumentation - Research equipment - Semiconductor manufacturing - Precision mechanical components --- ### 7. International Standards | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | R30159 | Material designation | | **AMS** | 5842 | Bar and forgings (base material) | | **ASTM** | F562 | Wrought cobalt-nickel alloy | | **ISO** | 5832-6 | Implants for surgery | --- ### 8. Fabrication & Installation **Tube Bending & Forming:** - **Minimum Bend Radius**: 3 × OD for aged condition - **Bending Methods**: Mandrel bending recommended - **Forming Temperature**: Cold forming preferred - **Springback Allowance**: 15–20% typical **Joining Methods:** - **Mechanical Fittings**: Swage-type and compression fittings - **Brazing**: Using specialized high-temperature alloys - **Welding**: Generally not recommended - **Adhesive Bonding**: With high-strength epoxies **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 --- ### 9. Quality Assurance **Standard Testing:** - Hydrostatic or pneumatic testing - Eddy current examination per ASTM E309 - Ultrasonic testing for wall thickness verification - Dimensional inspection per ASTM A450 **Special Testing Available:** - Flare testing for ductility verification - Flattening testing for weld quality - Grain size evaluation - High-temperature performance testing --- ### 10. Technical Advantages - **Ultra-high strength** in thin-wall configurations - **Excellent fatigue resistance** in cyclic pressure service - **Good corrosion resistance** in various media - **Maintains mechanical properties** at elevated temperatures - **Superior strength-to-weight ratio** - **Reliable performance** in critical applications --- ### 11. Special Considerations **Material Handling:** - Protect from surface damage during handling - Store in clean, dry environment - Avoid contamination from other metals **Processing Notes:** - Final heat treatment after forming operations - Careful handling to prevent surface defects - Proper cleaning before assembly --- **Note:** MP159 Tube products offer exceptional performance for high-strength, high-temperature tubular applications. The material requires specialized processing and proper heat treatment to achieve optimal properties. Consult with our technical team for specific application recommendations and fabrication 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 2265 gallon liquid totes Special package is available on request.