Cobalt Alloy 6b,Stellite 6b Foil,Shim,UNS R30016,E FORU

British Specs:，American Specs: AMS 5894 Bar, Sheet, Plate，German Specs:

**Technical Data Sheet: Cobalt Alloy 6B / Stellite 6B Foil & Shim (UNS R30016)** **1.0 Product Overview** Cobalt Alloy 6B Foil and Shim, commercially known as Stellite 6B Foil and Shim (UNS R30016), are thin-gauge product forms of this premium cobalt-chromium-tungsten superalloy. These precision-engineered materials combine exceptional wear resistance, excellent corrosion resistance, and precise dimensional control, making them ideal for critical sealing, spacing, and wear surface applications in extreme environments where conventional materials would rapidly degrade. **2.0 Chemical Composition** | Element | Content (%) | Primary Function | |---------|-------------|------------------| | Co | Balance | Matrix Element, provides inherent wear resistance | | Cr | 27.0-32.0 | Corrosion & Oxidation Resistance, forms carbides | | W | 3.0-5.0 | Solid Solution Strengthener, enhances hot hardness | | C | 0.9-1.4 | Primary carbide former for wear resistance | | Si | 1.0 max | Deoxidizer, improves fluidity | | Fe | 3.0 max | - | | Ni | 3.0 max | Austenite stabilizer | | Mn | 1.0 max | Deoxidizer | | Mo | 1.0 max | Secondary strengthener | **3.0 Physical Properties** | Property | Metric Value | Imperial Value | Condition | |----------|--------------|----------------|-----------| | Density | 8.53 g/cm³ | 0.308 lb/in³ | Room Temperature | | Melting Range | 1290-1395°C | 2350-2540°F | - | | Thermal Conductivity | 14.9 W/m·K | 103.0 Btu·in/(hr·ft²·°F) | 21°C | | Mean Coefficient of Thermal Expansion | 14.2 × 10⁻⁶/°C | 7.9 × 10⁻⁶/°F | 20-540°C | | Modulus of Elasticity | 211 GPa | 30.6 × 10⁶ psi | Room Temperature | **4.0 Mechanical Properties** **4.1 Foil Properties (Thickness: 0.025-0.125 mm)** - Hardness: 35-40 HRC - Tensile Strength: 620-760 MPa (90-110 ksi) - Yield Strength (0.2% Offset): 480-550 MPa (70-80 ksi) - Elongation: 3-8% **4.2 Shim Properties (Thickness: 0.15-1.5 mm)** - Hardness: 37-42 HRC - Tensile Strength: 690-830 MPa (100-120 ksi) - Yield Strength (0.2% Offset): 550-620 MPa (80-90 ksi) - Elongation: 2-5% **5.0 Product Specifications** **5.1 Foil Specifications** - **Thickness Range:** 0.025 mm to 0.125 mm (0.001" to 0.005") - **Width Range:** 50 mm to 300 mm (2" to 12") - **Standard Tolerance:** ±0.0025 mm (±0.0001") - **Surface Finish:** Bright annealed, rolled finish **5.2 Shim Specifications** - **Thickness Range:** 0.15 mm to 1.5 mm (0.006" to 0.060") - **Width Range:** Up to 600 mm (24") - **Standard Tolerance:** ±0.01 mm (±0.0004") - **Available Forms:** Plain, pre-cut shapes, custom configurations **6.0 Manufacturing Processes** **6.1 Production Methods** - Precision cold rolling - Intermediate annealing cycles - Surface conditioning - Precision slitting and shearing - Heat treatment in controlled atmosphere **6.2 Quality Control** - 100% thickness verification - Surface defect inspection - Dimensional accuracy checking - Mechanical property testing **7.0 Heat Treatment** **7.1 Standard Treatment** - Solution Annealing: 1150-1200°C (2100-2190°F) - Stress Relieving: 650-750°C (1200-1380°F) - Atmosphere controlled to prevent oxidation **7.2 Special Considerations** - Reduced aging times for thin sections - Special fixtures to prevent distortion - Controlled cooling rates - Protective atmosphere essential **8.0 Product Applications** **8.1 Aerospace & Defense** - Turbine case sealing shims - Combustion chamber seals - Exhaust system gaskets - Bearing isolation shims - Thermal protection layers **8.2 Industrial Applications** - Pump wear shims and spacers - Valve stem packing rings - Machinery alignment shims - High-temperature gaskets - Wear washers and spacers **8.3 Special Applications** - Nuclear reactor shim stock - Chemical processing gaskets - Food processing wear strips - Medical device components **9.0 International Standards & Specifications** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | ASTM International | ASTM F1376 | Cobalt Alloy Strip and Foil | | AMS | AMS 5385 | Cobalt Alloy Castings (derived from) | | ISO | 5832-4 | Implants for Surgery | | UNS | R30016 | Unified Numbering System | | DIN | 2.4778 | German Material Number | **10.0 Fabrication Characteristics** **10.1 Forming & Cutting** - Good formability in annealed condition - Can be stamped, blanked, and formed - Suitable for precision etching - Laser cutting and water jet cutting suitable **10.2 Joining Methods** - Weldable using micro-welding techniques - Braze compatible with nickel-based filler metals - Adhesive bonding possible with surface preparation - Mechanical fastening recommended **11.0 Quality Assurance** **11.1 Testing Requirements** - Dimensional verification - Surface quality inspection - Mechanical property testing - Chemical composition verification - Flatness measurement **11.2 Certification** - Mill Test Certificates per EN 10204 3.1 - Material traceability - Heat treatment certification - Compliance certificates **12.0 Performance Characteristics** **12.1 Wear & Corrosion Performance** - Excellent metal-to-metal wear resistance - Superior galling resistance - Good corrosion resistance in various media - Outstanding oxidation resistance up to 980°C - Excellent erosion resistance **12.2 Special Features** - Consistent gauge control - Excellent surface finish - Uniform mechanical properties - Good thermal stability - Maintains properties at elevated temperatures Cobalt Alloy 6B Foil and Shim (Stellite 6B) offer unparalleled performance for precision applications requiring thin, wear-resistant components. Their unique combination of high-temperature strength, oxidation resistance, and exact dimensional control makes them essential for critical sealing and spacing applications in the most demanding aerospace, power generation, and industrial environments. The foil and shim product forms provide design engineers with versatile solutions for applications where conventional materials prove inadequate.

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 2350 gallon liquid totes Special package is available on request.