Key Features & Benefits

Superior Corrosion Resistance

• Outperforms 316 and 317 stainless steel in marine, chemical, and chloride environments

• PREN (Pitting Resistance Equivalent Number) exceeds 34, comparable to duplex stainless steel

• Excellent resistance to sulfide stress corrosion and intergranular attack

• Ideal for saltwater, chemical processing, and corrosive industrial applications

Exceptional Mechanical Properties

• Double the yield strength of 304 and 316 SS in annealed condition

• Enhanced wear resistance through nitrogen strengthening

• Superior impact strength across wide temperature ranges (-196°C to 400°C)

• Non-magnetic properties retained even after severe cold work

• Hardness up to 35 HRC in high-strength condition

Premium Precision Manufacturing

• Manufactured to ABEC/ISO precision grades

• Sphericity and surface finish meet stringent bearing standards

• Available in grades from G10 to G100 for various precision requirements

• Diameter tolerance within ±0.0001 inch (±0.0025 mm)

Extended Service Life

• Significantly reduced maintenance costs

• Minimal wear and deformation under high loads

• Excellent fatigue resistance for long-term reliability

• Reduced replacement frequency compared to standard materials

Technical Specifications

Available Sizes & Grades

Standard Diameter Ranges

• Miniature: 0.5mm - 6mm

• Small: 6.35mm (1/4") - 12.7mm (1/2")

• Medium: 15.875mm (5/8") - 25.4mm (1")

• Large: 28.575mm (1-1/8") - 50.8mm (2")

• Custom sizes available upon request

Precision Grades

Applications

Marine & Offshore

• Marine pump shafts and bearings

• Valve stems for subsea equipment

• Deck hardware and fixtures

• Propeller shaft bearings

• Underwater vehicle components

Chemical & Petrochemical

• Pump bearings in corrosive media

• Valve trim components

• Chemical processing equipment

• Fertilizer plant machinery

• Acid handling systems

Oil & Gas Industry

• Downhole equipment bearings

• Wellhead valves

• Pipeline equipment

• Drilling equipment components

• High-pressure applications

Aerospace & Defense

• Aircraft control systems

• Helicopter components

• Precision instruments

• Non-magnetic requirement applications

Food & Pharmaceutical

• Food processing equipment

• Sanitary pumps and valves

• FDA-compliant applications

• Clean room equipment

Pulp & Paper Industry

• Valve components

• Pump bearings

• Corrosion-resistant fittings

Comparison with Other Bearing Materials

Quality Assurance

• 100% dimensional inspection

• Surface finish verification

• Material composition testing

• Hardness testing per batch

• Magnetic property verification

• Certified to international standards

• Full traceability documentation

• Certificate of Compliance included

Why Choose XM-19 Steel Balls?

? Cost-Effective: Reduced maintenance and replacement costs offset higher initial investment
? Reliable Performance: Proven track record in harsh environments
? Extended Life: Significantly longer service life than standard materials
? Versatile: Suitable for diverse industrial applications
? Non-Magnetic: Critical for sensitive applications
? Temperature Resistant: Maintains properties across extreme temperature ranges
? Standards Compliant: Meets ASTM and international specifications

Why Choose Eurasian

Certified quality for demanding industries

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

Strong heat treatment and materials know-how

Eurasian has long experience as a chrome steel ball manufacturer, producing high-precision chrome steel balls, stainless steel balls, and carbon steel 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, providing consistent hardness, microstructure, and dimensional accuracy across all materials.

Full range of precision balls from one source

From chrome steel balls (bearing steel, GCr15 / AISI 52100) to stainless steel, aluminum, carbon steel, and special balls, Eurasian can support multiple projects and platforms with one consolidated supply base. This helps simplify supplier management, align quality standards, and reduce total procurement and logistics costs.

Experience with global OEM and export customers

Eurasian supplies precision balls for automotive seat systems, wheel bearings, industrial equipment, and other export applications, including chrome steel balls and high chrome steel grinding media balls, through long-term cooperation with overseas customers. Our team is familiar with international documentation, packaging, and inspection requirements, making your 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 chrome steel balls into new projects while controlling risk and lead time.

Frequently Asked Questions (FAQ)

General Questions

Q1: What is XM-19 steel, and how is it different from regular stainless steel?

A: XM-19 (also known as Nitronic 50 or UNS S20910) is a nitrogen-strengthened austenitic stainless steel with significantly enhanced properties compared to standard 300-series stainless steels. It contains higher levels of chromium, molybdenum, and nitrogen, providing approximately twice the yield strength of 316 stainless steel while offering superior corrosion resistance. The key difference is its combination of high strength and excellent corrosion resistance in a single material.

Q2: Why are XM-19 steel balls more expensive than standard stainless steel balls?

A: XM-19 steel balls command a higher price due to their enhanced alloying elements (higher nitrogen, chromium, and molybdenum content), specialized manufacturing processes, and superior performance characteristics. However, the total cost of ownership is often lower because of extended service life, reduced maintenance, and fewer replacements needed compared to standard materials.

Q3: Are XM-19 steel balls suitable for food-grade applications?

A: Yes, XM-19 stainless steel is FDA-compliant and suitable for food processing and pharmaceutical applications. The material provides excellent corrosion resistance to food acids and cleaning chemicals while maintaining sanitary surface properties.

Technical Questions

Q4: What is the maximum operating temperature for XM-19 steel balls?

A: XM-19 steel balls can operate continuously at temperatures up to 400°C (752°F) while maintaining their mechanical properties. They also perform exceptionally well at cryogenic temperatures down to -196°C (-320°F), making them versatile for both high and low-temperature applications.

Q5: Are XM-19 steel balls magnetic?

A: No, XM-19 steel balls are non-magnetic in all conditions, including after severe cold working. This makes them ideal for applications where magnetic interference must be avoided, such as aerospace instruments, medical devices, and precision measuring equipment. This is a significant advantage over materials like 17-4 PH or 440C, which are magnetic.

Q6: How does the hardness of XM-19 compare to other bearing materials?

A: In the annealed condition, XM-19 has a hardness of 25-30 HRC. In the high-strength condition, it reaches 30-35 HRC. While not as hard as heat-treated 440C (58-62 HRC) or 52100 chrome steel (60-64 HRC), XM-19 compensates with superior corrosion resistance and work hardening properties that increase surface hardness during operation.

Q7: Can XM-19 steel balls be used in saltwater or marine environments?

A: Absolutely. XM-19 is one of the best materials for marine applications. Its high chromium and molybdenum content, combined with nitrogen strengthening, provides exceptional resistance to pitting and crevice corrosion in chloride-rich environments like seawater. It significantly outperforms 316 and 317 stainless steel in these conditions.

Q8: What precision grades are available for XM-19 steel balls?

A: XM-19 steel balls are available in precision grades ranging from G10 (ultra-precision) to G100 (general industrial). The grade selection depends on your application requirements. Higher-precision grades (lower numbers) have tighter tolerances on diameter, sphericity, and surface finish.

Application Questions

Q9: What are the most common applications for XM-19 steel balls?

A: The most common applications include:

• Marine pump and valve components

• Chemical processing equipment bearings

• Oil and gas downhole equipment

• Food processing machinery

• Valve stems and trim components

• Aerospace instruments

• Pump shafts in corrosive environments

• Any application requiring both high strength and corrosion resistance

Q10: Can XM-19 steel balls be used in high-speed bearing applications?

A: Yes, XM-19 steel balls are suitable for high-speed applications, though the operating speed should be determined based on the complete bearing assembly design, lubrication system, and load conditions. While ceramic balls may be preferred for ultra-high-speed applications, XM-19 offers an excellent balance of speed capability and corrosion resistance.

Q11: Are XM-19 steel balls suitable for cryogenic applications?

A: Yes, XM-19 maintains excellent impact strength and mechanical properties at cryogenic temperatures down to -196°C. Unlike some materials that become brittle at low temperatures, the austenitic structure of XM-19 ensures reliable performance in cryogenic service.

Q12: How do XM-19 steel balls perform under heavy loads?

A: XM-19 steel balls excel under heavy loads due to their high yield strength—approximately double that of 316 stainless steel. The work hardening characteristics of the material also mean that surface hardness increases during operation, enhancing wear resistance over time.

Maintenance & Performance Questions

Q13: What is the expected service life of XM-19 steel balls compared to standard materials?

A: Service life depends on operating conditions, but XM-19 typically provides 2-5 times longer service life than 316 stainless steel balls in corrosive environments. In non-corrosive applications with high loads, the superior strength extends bearing life significantly. The exact improvement varies based on specific application parameters.

Q14: Do XM-19 steel balls require special lubrication?

A: XM-19 steel balls are compatible with standard bearing lubricants including mineral oils, synthetic oils, and greases. No special lubrication is required, though proper lubricant selection based on operating temperature and environment is always recommended for optimal performance.

Q15: How resistant is XM-19 to stress corrosion cracking?

A: XM-19 has good resistance to stress corrosion cracking. While it can crack under extreme conditions (like boiling magnesium chloride solutions), it performs similarly to or better than 316 stainless steel in most practical applications. For sour gas environments, XM-19 has excellent resistance to sulfide stress cracking and is included in NACE MR-01-75 standards.

Q16: Can XM-19 steel balls be used in acidic environments?

A: Yes, XM-19 provides excellent corrosion resistance to many acids, particularly those that cause pitting corrosion in standard stainless steels. However, specific acid type, concentration, and temperature should be evaluated. XM-19 is particularly effective against phosphoric acid, nitric acid, and organic acids commonly found in food processing.

Manufacturing & Ordering Questions

Q17: What is the lead time for XM-19 steel balls?

A: Lead times vary based on size, quantity, and precision grade. Standard sizes in G100 grade may be available from stock or within 2-4 weeks. Custom sizes or higher precision grades (G10-G50) typically require 6-10 weeks. We recommend contacting us for specific lead time information for your requirements.

Q18: What quality certifications are provided with XM-19 steel balls?

A: Each order includes:

• Certificate of Compliance confirming material grade (UNS S20910)

• Chemical composition analysis

• Dimensional inspection report

• Hardness test results

• Lot traceability documentation

• ASTM compliance certification Additional certifications (3.1, 3.2) available upon request.

Q19: What is the minimum order quantity for XM-19 steel balls?

A: Minimum order quantities vary by size and grade. Standard sizes typically have lower minimums (10-100 pieces), while custom sizes or special grades may require larger quantities. Please contact us for specific MOQ information for your application.

Q20: Can I get custom sizes or special specifications for XM-19 steel balls?

A: Yes, we offer custom manufacturing services for XM-19 steel balls. We can produce non-standard diameters, special tolerance requirements, or specific surface finishes. Custom orders typically require technical discussions to ensure specifications meet your application needs and are feasible to manufacture.

Comparison Questions

Q21: When should I choose XM-19 over 440C stainless steel balls?

A: Choose XM-19 when:

• Corrosion resistance is critical (marine, chemical environments)

• Non-magnetic properties are required

• High impact strength is needed

• Operating temperatures vary widely

• Combination of strength and corrosion resistance is essential

Choose 440C when:

• Maximum hardness is required

• Dry or mildly corrosive environments

• Lower cost is a priority

• Magnetic properties are acceptable

Q22: How does XM-19 compare to ceramic balls?

A: XM-19 offers:

• Lower cost (typically 60-70% less expensive)

• Better impact resistance (less brittle)

• Easier machinability

• Good but not exceptional high-speed performance

Ceramic balls offer:

• Higher hardness and stiffness

• Better performance at extreme speeds

• Lower density

• Higher cost

• More brittle (can crack under shock loads)

Choose based on whether you prioritize cost-effectiveness and toughness (XM-19) or ultra-high speed and extreme conditions (ceramic).

Contact & Ordering Information

For technical specifications, custom requirements, or to place an order, please contact our sales team:

Technical Support AvailableOur engineering team can assist with:

• Material selection guidance

• Application-specific recommendations

• Performance calculations

• Custom specifications

Volume Discounts AvailableContact us for pricing on bulk orders and partnership opportunities.

Additional Resources

• Full technical data sheets available upon request

• Material test certificates

• Application engineering support

• Cross-reference guides to competitor materials

• CAD models for bearing design

Note: Specifications and properties are typical values and may vary based on manufacturing conditions and heat treatment. Always consult with our technical team for critical application requirements.