Description

Stellite CAS NO 12638-07-2 is a family of cobalt-chromium superalloys renowned for their exceptional resistance to wear, corrosion, and high temperatures. These properties make them critical for components operating in extreme environments where failure is not an option. This material is essential for industries such as aerospace, chemical processing, power generation, and oil & gas, where it is used to manufacture valves, pump seals, turbine blades, and cutting tools.

Application

• Aerospace Components: Used in turbine blades, vanes, and other hot-section parts due to its high-temperature strength and oxidation resistance.
• Industrial Valves and Seats: Ideal for severe-service valves, valve seats, and trim in chemical processing and oil & gas applications to combat erosion and corrosion.
• Wear-Resistant Parts: Employed in the manufacture of bushings, bearings, and cutting tools where extreme abrasion and galling resistance are required.
• Chemical Processing Equipment: Used for pump seals, nozzles, and reactor components that are exposed to highly corrosive media.
• Power Generation: Applied in components for coal-fired boilers, nuclear reactors, and gas turbines to extend service life under thermal stress.
• Medical Implants: Certain grades are utilized in orthopedic implants like hip and knee replacements due to biocompatibility and wear resistance.

Basic Information

Product Name	Stellite
CAS No.	12638-07-2
Molecular Formula	Alloy (Co-Cr base)
Molecular Weight	N/A (Alloy)
Synonyms	Stellite Alloy; Cobalt-Chromium Alloy; Co-Cr Alloy; Haynes Stellite; Tribaloy (related series); Deloro Stellite; Cobalt-base Superalloy; Wear-Resistant Cobalt Alloy
EINECS	Contact for details

Quality Control

Our Stellite alloys are produced under stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Material composition and mechanical properties are verified against established industry and customer-specific specifications, such as ASTM, AMS, or proprietary grade standards. A comprehensive Certificate of Analysis (COA) detailing chemical composition, hardness, and microstructure is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids and oxidizing agents. For long-term storage, ensure packaging is intact to prevent surface oxidation or contamination.

Specification

Item	Specification
Appearance	Metallic solid (powder, rod, casting)
Primary Composition (Typical)	Cobalt (Co) base, Chromium (Cr), Tungsten (W), Carbon (C)
Chromium Content	25 - 33 %
Tungsten Content	4 - 15 %
Carbon Content	0.25 - 2.5 %
Hardness (Rockwell C)	30 - 55 HRC (grade dependent)
Density	8.3 - 8.8 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.