High Standard Stainless Steel With Strict Inspection
Stellite 6
Complete Technical Data Sheet for Stellite 6 Chemical Composition Mechanical Properties Physical Properties International Standards & Grade Equivalents Mechanical Properties of Stellite 6 Hardness Ratings and Wear Resistance Stellite 6 is known for its hardness and wear resistance, making it suitable for high-abrasion environments. Common applications include valve seats and industrial cutting tools, where its […]
Description
Stellite 6 Available Product Forms
Cobalt-Based Superalloy Plates
Stellite 6 plates are used in applications requiring high wear and corrosion resistance, such as industrial machinery and heat exchangers.
Cobalt-Based Superalloy Bars/Rods
Stellite 6 bars are ideal for manufacturing components like pump shafts and valve stems, offering durability and resistance to mechanical degradation.
Cobalt-Based Superalloy Tubes
Stellite 6 tubes are utilized in high-temperature and corrosive environments, such as chemical processing and power generation industries.
Cobalt-Based Superalloy Wire
Stellite 6 wires are commonly used in welding and hardfacing applications, providing a robust coating for wear-prone surfaces.
Complete Technical Data Sheet for Stellite 6
| Property | Specification | Unit |
|---|---|---|
| Cobalt (Co) | Balance | % |
| Chromium (Cr) | 27-32 | % |
| Tungsten (W) | 4~6 | % |
| Carbon (C) | 0.9-1.4 | % |
| Nickel (Ni) | <3 | % |
| lron (Fe) | <3 | % |
| Silicon (Si) | <2 | % |
| Manganese (Mn) | <1 | % |
| Molybdenum (Mo) | <1.5 | % |
| Property | Specification | Unit |
|---|---|---|
| Hardness (as-cast) | 36-46 | HRC |
| Ultimate Tensile Strength | 850 | MPa |
| Yield Stress (Rp0.2%) | 700 | MPa |
| Elongation | <1 | % |
| Elastic Modulus | 209 | GPa |
| Property | Specification | Unit |
|---|---|---|
| Density | 8.44 | g/cm³ |
| Melting Range | 1285-1410 | °C |
| Thermal Conductivity (RT) | 14.82 | W/m·K |
| Electrical Resistivity (RT) | 106 | μΩ·cm |
| Thermal Expansion (20-100°C) | 11.35 | μm/m·K |
| Standard/Equivalent | Specification | Description |
|---|---|---|
| UNS R30006 | Rod, Castings | United Numbering System |
| AWS A5.21 ERCoCr-A | Rod | American Welding Society |
| AWS A5.13 ECoCr-A | Electrode | American Welding Society |
| AMS 5788 | Rod, Wire | Aerospace Material Specification |
| DIN 2.4778 | Equivalent Grade | German Standard |
What are the excellent characteristics of Stellite 6?
Unique Metallurgical Features
The Stellite 6 alloy consists mainly of cobalt, chromium, and tungsten, with molybdenum and carbon. Its unique metallurgical composition forms a hard matrix of carbides, enhancing hardness and wear resistance. The distribution of these carbides is vital for its mechanical properties, making Stellite 6 ideal for hardfacing applications.
Microstructure and Mechanical Properties
The microstructure of Stellite 6 alloy coatings features a blend of α-Co and (Cr, Fe)7C3 phases, with a cellular-dendritic structure that enhances hardness and wear resistance. These properties are crucial for application in harsh environments, providing superior protection against wear and mechanical stress, ensuring component longevity.
Phase Analyses of Stellite 6
Stellite 6 exhibits a multiphase structure, including α -Co and M7C6 phases, enhancing its hardness. Advanced techniques like the Rigaku ULTIMA IV and EBSD confirm its complex phase composition. This structure, featuring CrCo solutions and cobalt–tungsten carbides, highlights Stellite 6’s suitability for high-performance coating applications.
Mechanical Properties of Stellite 6
Hardness Ratings and Wear Resistance
Stellite 6 is known for its hardness and wear resistance, making it suitable for high-abrasion environments. Common applications include valve seats and industrial cutting tools, where its unique cobalt, chromium, and tungsten composition enhances durability and reliability against wear and corrosion.
Coefficient of Friction and Corrosion Resistance
Stellite 6 features a low friction coefficient and high chromium content, ensuring excellent corrosion resistance in harsh conditions. Its cobalt alloy plates provide a durable protective layer, making Stellite 6 ideal for applications in severe chemical and thermal environments, ensuring reliability and longevity in material solutions.
Comparative Performance with Other Alloys
Stellite 6 outperforms conventional stainless steels with superior wear resistance, high-temperature strength, and corrosion resistance. Its exceptional hardness makes it ideal for industries needing durable solutions for equipment in harsh chemical and thermal environments.
What Our Clients Say
“Stellite 6 is a game-changer. Its exceptional wear and corrosion resistance have significantly improved the durability of our industrial equipment, saving time and reducing maintenance costs.”
John Carter
Mechanical Engineer
“I highly recommend Stellite 6. Its outstanding high-temperature performance has been invaluable for our production processes, ensuring reliable operations and extending the lifespan of critical components.”
Emily Davis
Manufacturing Specialist
Our Latest Blogs
Alloy 625 Severe Sour Gas Service: Complete Guide
Alloy 625 is the default nickel-based alloy for severe sour gas service, qualified under NACE MR0175/ISO 15156 for all H2S…
Super 13Cr Stainless Steel: CO2 & Sour Service Guide
Super 13Cr stainless steel is a low-carbon, nickel- and molybdenum-strengthened martensitic grade (UNS S41425, S41426, S41427) built to outlast conventional…
Inconel 718 vs 725 vs 925: The Complete Selection Guide
Inconel 718, 725, and 925 are all age-hardenable nickel alloys, but each is built for a different job. Choose Inconel…
Duplex Stainless Steel Sour Service: 2205 vs 2507 Limits
Yes, duplex stainless steel sour service is practical and proven, but only within defined NACE MR0175/ISO 15156 limits. Standard duplex…
What Is Sour Service? H2S Environments Explained
Sour service is oil and gas equipment exposure to hydrogen sulfide (H2S) that can crack steel and other alloys. Under…
Sulfide Stress Cracking: Hardness Limits & Prevention
Sulfide stress cracking (SSC) is a form of hydrogen embrittlement that occurs when high-hardness steel under tensile stress is exposed…
NACE MR0175/ISO 15156 Explained: Sour Service Guide
NACE MR0175/ISO 15156 is the international standard that governs metallic materials for oil and gas production environments containing hydrogen sulfide…
How to Select Corrosion-Resistant Alloys for Sour Service
To select a corrosion-resistant alloy for sour service, characterize the environment first, classify sour severity by H2S partial pressure, screen…
Frequently Asked Questions
What is Cobalt-Based Superalloy Stellite 6?
Cobalt-Based Superalloy Stellite 6 is a wear-resistant and corrosion-resistant material widely used in industries that require high performance under extreme conditions. It is known for its remarkable ability to maintain hardness and toughness at elevated temperatures, making it ideal for applications such as cutting tools, valve seats, and engine components.
What are the main properties of Stellite 6?
Stellite 6 is characterized by its excellent resistance to wear, galling, and corrosion. It retains mechanical strength and performance even at temperatures exceeding 500°C, making it suitable for high-temperature environments and demanding operational conditions.
What industries typically use Stellite 6?
Stellite 6 sees extensive use in industries such as aerospace, oil and gas, automotive, energy production, and manufacturing. It is particularly favored in applications where components are exposed to severe abrasion, elevated temperatures, and corrosive media.
How can Stellite 6 components be customized for specific applications?
We provide tailored solutions for Stellite 6 components, including custom machining, coating, and surface treatments, to meet specific industry requirements. These services ensure optimal performance and durability for your unique applications.
What forms are available for Stellite 6?
Stellite 6 is available in a variety of forms, including castings, wrought products, powders, rods, and coatings. This versatility enables it to be used across a wide range of applications to suit diverse customer needs.
What services do you offer for manufacturing Stellite 6 parts?
We offer precision engineering and manufacturing services, including CNC machining, thermal spraying, and casting. Our team works closely with customers to produce high-quality Stellite 6 components that align with their operational requirements.
Why is Stellite 6 preferred over other alloys?
Stellite 6 is preferred due to its exceptional balance of wear resistance, corrosion resistance, and strength at high temperatures. Its ability to perform reliably under extreme conditions often surpasses that of other materials, making it a cost-effective and efficient choice.
Can Stellite 6 be coated or welded?
Yes, Stellite 6 is suitable for coatings and welding processes. We offer specialized coating services, such as HVOF or plasma spraying, and welding solutions to enhance the material’s performance and longevity in your specific applications.
Shipping and Delivery
MAECENAS IACULIS
Vestibulum curae torquent diam diam commodo parturient penatibus nunc dui adipiscing convallis bulum parturient suspendisse parturient a.Parturient in parturient scelerisque nibh lectus quam a natoque adipiscing a vestibulum hendrerit et pharetra fames nunc natoque dui.
ADIPISCING CONVALLIS BULUM
- Vestibulum penatibus nunc dui adipiscing convallis bulum parturient suspendisse.
- Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
- Diam parturient dictumst parturient scelerisque nibh lectus.
Scelerisque adipiscing bibendum sem vestibulum et in a a a purus lectus faucibus lobortis tincidunt purus lectus nisl class eros.Condimentum a et ullamcorper dictumst mus et tristique elementum nam inceptos hac parturient scelerisque vestibulum amet elit ut volutpat.
