Multimet N155,Multimet Strip,UNS R30155,E FORU

British Specs:，American Specs: AMS 5532 Sheet, Plate and Strip AMS 5769 Bars, Rings and Forgings AMS 5794 Welding Wire AMS 5795 Coated Electrodes，German Specs:

### Technical Data Sheet: Multimet N155 / Multimet Strip / UNS R30155 **Iron-Nickel-Chromium-Cobalt Superalloy Strip Product** --- ### 1. Product Overview **Multimet N155 Strip** (UNS R30155) is precision-rolled from the iron-nickel-chromium-cobalt superalloy family, designed for high-temperature applications requiring excellent strength and oxidation resistance in thin gauge materials up to **980°C (1800°F)**. This product offers outstanding high-temperature mechanical properties with precise dimensional control, making it ideal for precision components in aerospace, electronics, and industrial applications. --- ### 2. Chemical Composition (Weight %) | Element | Content (%) | Key Characteristics | |---------|-------------|---------------------| | **Iron (Fe)** | Balance | Matrix element | | **Chromium (Cr)** | 20.0–22.0 | Oxidation and corrosion resistance | | **Nickel (Ni)** | 19.0–21.0 | Austenitic structure stability | | **Cobalt (Co)** | 18.0–20.0 | Solid solution strengthening | | **Tungsten (W)** | 2.0–3.0 | Solid solution strengthening | | **Molybdenum (Mo)** | 2.0–3.0 | Solid solution strengthening | | **Niobium (Nb)** | 0.75–1.25 | Carbide formation and strengthening | | **Carbon (C)** | 0.05–0.10 | Carbide strengthening | | **Nitrogen (N)** | 0.10–0.20 | Solid solution strengthening | | **Manganese (Mn)** | 1.0–2.0 | Hot workability | | **Silicon (Si)** | ≤ 0.75 | Residual element | --- ### 3. Physical Properties | Property | Value | |----------|-------| | **Density** | 8.23 g/cm³ (0.297 lb/in³) | | **Melting Range** | 1370–1425°C (2500–2600°F) | | **Thermal Conductivity** | 14.2 W/m·K at 100°C | | **Mean CTE (20-100°C)** | 14.5 µm/m·°C | | **Electrical Resistivity** | 1.05 µΩ·m at 25°C | | **Magnetic Permeability** | Essentially non-magnetic | --- ### 4. Mechanical Properties **Standard Properties (Solution Annealed):** - **Tensile Strength**: 790–930 MPa (115–135 ksi) - **Yield Strength (0.2% Offset)**: 415–550 MPa (60–80 ksi) - **Elongation**: 30–40% - **Hardness**: 90–95 HRB **Elevated Temperature Performance:** - **Stress Rupture Strength**: 100 MPa at 815°C for 100 hours - **Creep Strength**: Excellent up to 980°C - **Oxidation Resistance**: Excellent up to 980°C --- ### 5. Product Specifications **Strip Dimensions:** - **Thickness**: 0.05 mm to 2.0 mm (0.002" to 0.079") - **Width**: 10 mm to 600 mm (0.394" to 23.6") - **Length**: Coils up to 1000 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 Rolled**: Various tempers available - **Temper Rolled**: Improved flatness and surface finish **Surface Finish Options:** - **Standard Mill Finish** - **Bright Annealed** - **Special Polished** (upon request) - **Pickled Finish** --- ### 6. Applications **Precision Components:** - Turbine blade sealing shims - Combustion chamber gaskets - High-temperature spring components - Instrumentation spacers **Electronics & Electrical:** - High-temperature connector components - Electrical resistance elements - Thermocouple compensation strips - Electronic shielding components **Industrial Processing:** - Furnace conveyor belts - Heat treatment fixture components - High-temperature filter elements - Chemical processing gaskets **Aerospace & Defense:** - Aircraft control system shims - Missile guidance components - Engine sensor mounts - Thermal protection system components --- ### 7. International Standards | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | R30155 | Material designation | | **ASTM** | B435 | Sheet, Plate, and Strip | | **AMS** | 5768 | Bar and forgings (strip applications) | | **ASTM** | B248 | Tolerances for Strip Products | --- ### 8. Fabrication Characteristics **Forming & Stamping:** - **Blankability**: Excellent in annealed condition - **Minimum Bend Radius**: 1.5T for 90° bends - **Punch Clearance**: 5–8% of material thickness - **Springback**: 10–15% typical - **Deep Drawing**: Suitable with proper tool design **Joining Methods:** - **Resistance Welding**: Excellent suitability - **Laser Welding**: Preferred for precision joints - **Brazing**: Using nickel-based filler metals - **Adhesive Bonding**: With high-temperature adhesives **Heat Treatment:** - **Solution Treatment**: 1175–1205°C (2150–2200°F) - **Aging Treatment**: 730–760°C (1350–1400°F) for 16 hours - **Cooling**: 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 - High-temperature oxidation testing --- ### 10. Technical Advantages - **Precision thickness control** for consistent manufacturing - **Excellent high-temperature strength** in thin strip configurations - **Outstanding oxidation resistance** up to 980°C - **Good thermal fatigue resistance** in cyclic conditions - **Excellent formability** for complex component shapes - **Consistent mechanical properties** throughout coils - **Good surface quality** for critical applications --- ### 11. Special Considerations **High-Temperature Applications:** - Maximum continuous service: 980°C (1800°F) - Consider thermal expansion in design - Proper support for thermal cycling **Material Handling:** - Protect from surface damage during handling - Store in dry, controlled environment - Avoid contamination from other metals - Clean handling environment recommended --- **Note:** Multimet N155 Strip offers excellent performance for high-temperature precision applications where oxidation resistance and elevated temperature strength are required in thin gauge materials. The material demonstrates good fabricability and can be readily formed into complex components. 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 2294 gallon liquid totes Special package is available on request.