Stellite 6K is a hot-rolled cobalt-chromium-tungsten alloy developed for industrial cutting, scraping, and slitting components. It is supplied as sheet, strip, plate, flat stock, rectangular blanks, and profile-cut blade material. The sections below address the technical questions most often associated with Stellite 6K flat products.
What Is Stellite 6K Sheet?
Stellite 6K sheet is the wrought flat form of the 6K alloy. Hot rolling produces a material suitable for industrial knife blanks, scraper blades, slitters, and other components that require a stable wear-resistant edge. The grade is normally specified by its chemical composition, hardness, dimensions, and agreed material condition.
Stellite 6K plate, Stellite 6K sheet, and Stellite 6K flat stock are similar flat forms of the same alloy, with the terminology varying by product dimensions and supplier convention. Products sold under the same name may also differ in thickness, width, length, flatness, and surface condition. Standard sizes and custom dimensions are available for different component and processing requirements.
What Is the Chemical Composition of Stellite 6K?
Published Stellite 6K product data typically specifies 28.00-32.00% chromium, 3.50-5.50% tungsten, and 1.40-1.90% carbon by weight, with cobalt as the balance. Nickel is normally limited to 3.00% maximum, silicon to 2.00% maximum, and iron to 3.00% maximum. Other controlled elements may include manganese and molybdenum.
| Cobalt | balance |
| Chromium | 28.00-32.00 wt.% |
| Tungsten | 3.50-5.50 wt.% |
| Carbon | 1.40-1.90 wt.% |
What Is the Hardness of Stellite 6K Sheet?
Typical hardness range of Stellite 6K is HRC 43-47. This higher hardness supports edge retention in industrial cutting and scraping service.
What Is the Difference Between Stellite Sheet, Stellite Plate, and Stellite Flat Stock?
These terms describe product form rather than different alloy chemistry. Stellite Sheet generally refers to thinner flat-rolled material supplied in larger widths or cut sheets. Stellite Plate generally refers to a thicker flat section. Stellite Flat Stock normally means a rectangular strip or blank cut to a specified width and length for machining or finishing.
Suppliers use different thickness conventions for sheet and plate, so drawings normally specify the exact thickness, width, and length. Stellite 6K flat stock can also be supplied with custom dimensions, flatness requirements, surface conditions, and grinding allowances.
What Is Stellite 6K Sheet Used For?
Stellite 6K sheet and flat stock are mainly used to manufacture cutting, scraping, and slitting components that require durable edges together with wear, corrosion, and heat resistance. Typical applications include:
Industrial knives and cutting blades: Used for cutting rubber, plastics, paper, board, textiles, food products, and other materials in continuous production lines.
Scraper and doctor blades: Installed against rolls, drums, conveyors, and processing surfaces to remove deposits, control material thickness, or maintain a clean surface.
Food-processing blades: Used in slicing, trimming, portioning, and other cutting operations exposed to moisture, cleaning chemicals, or elevated temperatures.
Fiber and textile-processing equipment: Used for cutting, scraping, and handling viscose fibers, synthetic fibers, yarns, and abrasive textile materials.
Industrial filtration equipment: Used for scraper edges and wear components that continuously remove solids or deposits from filter surfaces.
How Does Stellite 6K Compare to Stellite 6B?
Stellite 6K contains more carbon than Stellite 6B and typically has higher hardness. The increased carbide content supports a durable cutting or scraping edge, which is why 6K is associated with knives, slitters, and scrapers. The trade-off is lower ductility and less tolerance for severe bending or impact than the more general-purpose wrought 6B grade.
Stellite 6B is commonly used for turbine erosion shields, bearings, valve parts, and sliding wear components where toughness and broader fabrication capability are important. Stellite 6K is used when edge retention is the defining function, particularly in industrial knives, slitters, and scraper blades.
How to Order Stellite 6K Sheet, Plate, or Flat Stock
A complete Stellite 6K inquiry should include:
- Stellite 6K grade and any required chemistry or hardness limits
- Thickness, width, length, quantity, flatness, and tolerances
- Required form: full sheet, plate, strip, rectangular flat stock, or profile-cut blank
- Blade profile, hole pattern, edge angle, grinding allowance, and final surface finish
- Material certificate, hardness report, traceability, and inspection requirements
- Drawing and operating details for custom knives, slitters, or scrapers
We supply Stellite 6K sheet, Stellite 6K plate, and Stellite 6K flat stock in standard and custom dimensions. Send an inquiry using the form on this page, email sales@stecometals.com, or contact us on WhatsApp at +86 136 7477 1335.
