MP159,MP159 Fittings,UNS R30159,E FORU

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

### Technical Data Sheet: MP159 / MP159 Fittings / UNS R30159 **Cobalt-Nickel-Chromium Superalloy Fittings** --- ### 1. Product Overview **MP159 Fittings** (UNS R30159) are precision-engineered components manufactured from the advanced cobalt-nickel-chromium superalloy, strengthened by multistage aging treatment. These fittings offer an exceptional combination of **ultra-high strength** (up to 1790 MPa), excellent corrosion resistance, and outstanding fatigue properties, making them ideal for critical piping and fluid handling systems operating in extreme conditions 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% - **Hardness**: 44–48 HRC **Pressure-Temperature Ratings:** - **Maximum Working Pressure**: Varies with fitting size and temperature - **Temperature Range**: -250°C to +650°C (-420°F to +1200°F) - **Excellent creep and stress rupture properties** --- ### 5. Product Range & Specifications **Available Fitting Types:** - **Elbows**: 45°, 90°, 180° - **Tees**: Equal and Reducing - **Reducers**: Concentric and Eccentric - **Caps** and **Stub Ends** - **Crosses** and **Laterals** - **Union** and **Coupling** fittings **Size Range:** - **Diameter**: 1/8" to 4" NPS - **Wall Thickness**: Schedule 5S to XXS - **Connection Types**: Buttweld, Socket Weld, Threaded **Standards Compliance:** - **ASME B16.9**: Factory-Made Wrought Buttwelding Fittings - **ASME B16.11**: Forged Steel Fittings, Socket-Welding and Threaded - **ASME B16.28**: Wrought Steel Buttwelding Short Radius Elbows and Returns - **MSS SP-43**: Wrought Stainless Steel Buttwelding Fittings --- ### 6. Applications **Aerospace & Defense:** - Aircraft hydraulic systems - Missile fuel systems - Engine fuel manifolds - High-pressure air systems **Medical & Pharmaceutical:** - High-pressure gas systems - Surgical instrument air lines - Pharmaceutical processing equipment - Medical gas delivery systems **Industrial Applications:** - High-pressure instrumentation - Chemical processing systems - Oil and gas equipment - Power generation systems **Special Applications:** - Nuclear instrumentation - Semiconductor manufacturing - Research equipment - Cryogenic systems --- ### 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 | | **ASME** | - | Code case applications | --- ### 8. Fabrication & Installation **Manufacturing Methods:** - Hot forging and machining - Precision investment casting - CNC machining from bar stock - Special forming processes **Installation Guidelines:** - **Proper Alignment**: Critical during installation - **Support Requirements**: Adequate for system weight - **Thermal Expansion**: Allow for proper clearance - **Handling**: Careful to prevent surface damage **Joint Preparation:** - **Butt Weld Ends**: Prepared per ASME B16.25 - **Socket Weld**: Proper clearance essential - **Threaded**: NPT threads standard --- ### 9. Quality Assurance **Testing & Certification:** - Material traceability documentation - Dimensional verification per applicable standards - Liquid penetrant or magnetic particle inspection - Pressure testing as required - PMI (Positive Material Identification) verification **Quality Standards:** - ISO 9001:2015 certified manufacturing - NADCAP accredited testing - ASME Quality System Certificate - PED 2014/68/EU certified **Documentation:** - Mill Test Certificate EN 10204 3.1/3.2 - Material Test Reports - Heat Treatment Records - Non-Destructive Testing Reports --- ### 10. Technical Advantages - **Ultra-high strength** in pressure applications - **Excellent fatigue resistance** in cyclic service - **Good corrosion resistance** in various media - **Maintains mechanical properties** at elevated temperatures - **Superior strength-to-weight ratio** - **Reliable performance** in critical systems - **Long service life** in demanding environments --- ### 11. Special Considerations **Pressure-Temperature Ratings:** - Consult manufacturer for specific ratings - Ratings vary with fitting size and configuration - Consider thermal expansion in system design **Compatibility:** - Compatible with MP159 piping and tubing - Suitable for use with various flange materials - Proper gasket selection essential --- **Note:** MP159 Fittings offer exceptional performance for high-pressure, high-temperature applications where conventional materials are inadequate. All fittings are supplied with full material certification and are manufactured according to applicable international standards. Custom configurations and special requirements are available upon request. Consult with our engineering team for specific application recommendations and technical support.

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 2269 gallon liquid totes Special package is available on request.