Key features

· High wear and abrasion resistance for long service life in harsh media.

· Excellent anti-galling behavior for metal-to-metal contact.

· Suitable for corrosive and high-temperature environments (depending on grade and service conditions).

· Stable performance for valves, sealing, and flow-control components.

Typical applications

· Ball valves, check valves, needle valves, safety valves (ball/trim components)

· Pumps and flow-control parts exposed to slurry/erosion

· Oil & gas and chemical processing components

· High-temperature mechanical assemblies requiring anti-galling and wear resistance

Why Choose Eurasian

Certified quality for demanding industries

Our manufacturing and quality systems are certified to IATF 16949:2016 and other international standards, which are widely recognized by global automotive and precision industries. This allows us to apply strict automotive-level process control to aluminum balls, stellite alloy balls, and other industrial balls, ensuring stable performance batch after batch.

Strong Heat Treatment and Materials Know-how

Eurasian has long experience in producing high-precision chrome steel, stainless steel, carbon steel balls, and cobalt alloy balls, supported by CQI-9-based heat treatment and advanced inspection equipment. The same metallurgical and process expertise is applied when developing and manufacturing aluminum balls and stellite balls (called stellite balls), so you benefit from consistent hardness, microstructure, and dimensional accuracy across all materials.

Full Range of Precision Balls from One Source

From bearing steel balls (GCr15 / AISI 52100) to stainless steel, aluminum, carbon steel, and special balls, Changzhou Eurasian can support multiple projects and platforms with one consolidated supply base. This helps you simplify supplier management, align quality standards, and reduce total procurement and logistics costs. Our stellite alloy balls and cobalt alloy balls are available in a wide range of sizes and grades to meet various industrial needs.

Experience with Global OEM and Export Customers

Changzhou Eurasian supplies precision balls for automotive seat systems, wheel bearings, industrial equipment, and other export applications through long-term cooperation with overseas customers. Our team is familiar with international documentation, packaging, and inspection requirements, making your aluminum ball, stellite balls, and cobalt alloy balls sourcing smoother and more predictable.

Stable Capacity and Flexible Cooperation

With established production lines and daily capacity measured in tons, we can support both trial orders and large-volume programs with reliable delivery times. Flexible MOQs, customized packaging, and responsive communication help you introduce aluminum balls, stellite alloy balls, and cobalt alloy balls into new projects while controlling risk and lead time.

Q1: What is a Stellite ball?

A Stellite ball is a ball made from Stellite (a cobalt-based alloy family), selected for severe wear, corrosion, erosion, and anti-galling requirements in demanding industrial service. Changzhou Eurasian, as a leading stellite balls factory, produces precision stellite alloy balls and cobalt alloy balls for high-performance applications.

Q2: What is Stellite used for in valves?

Stellite balls are widely used in valves (especially severe service) to resist wear and galling and to maintain stable sealing/flow-control performance under abrasive or high-temperature conditions. Changzhou Eurasian’s stellite alloy balls ensure reliable performance in these demanding valve applications.

Q3: Which Stellite grade should be used (Stellite 6 vs Stellite 12)?

Grade selection depends on your wear mechanism (abrasion vs erosion), corrosion media, and temperature. Provide service conditions, and the matched grade can be recommended and confirmed by spec/sample approval. Our cobalt alloy balls and called stellite balls can be supplied in the proper grade to match your application.

Q4: Are Stellite balls stainless?

No—Stellite is a different alloy family from stainless steel; stainless balls are typically categorized into martensitic (e.g., SUS440C) and austenitic (e.g., SUS304/316) types. Stellite balls, including precision stellite alloy balls, are chosen when wear, temperature, or anti-galling needs go beyond typical stainless options.

Q5: Are Stellite balls corrosion resistant?

Many Stellite grades offer strong corrosion resistance in industrial media, but the best choice depends on the exact chemical environment, temperature, and concentration. Sharing your media details allows Changzhou Eurasian’s stellite balls factory to confirm the most suitable cobalt alloy balls for your project.

Q6: Can Stellite balls be supplied in precision grades (e.g., G10/G20)?

They can be produced with controlled sphericity and surface finish, but achievable precision depends on diameter, manufacturing route, and inspection standard. Precision stellite alloy balls from Changzhou Eurasian can meet tight tolerances based on your drawing/specification.

Q7: What information is needed for a quotation?

Please provide ball diameter, tolerance/finish requirement, Stellite grade (or application details for recommendation), quantity, operating temperature/pressure, media type (corrosion/slurry), and any required test reports. Called stellite balls and cobalt alloy balls can be quoted precisely based on these details.

Q8: What test reports can be provided?

Common options include dimensional inspection, hardness testing, surface inspection, and material traceability. Additional tests can be discussed based on your project requirements. Changzhou Eurasian’s stellite balls factory can provide reports for both precision stellite alloy balls and cobalt alloy balls