AISI 904L Balls
Ball Bearing
Austenitic Stainless Steel, Corrosion & Acid Resistant
AISI 904L balls from Atlas Ball & Bearing are precision-engineered from super austenitic stainless steel, offering outstanding corrosion resistance, particularly in aggressive and acidic environments. These balls are ideal for highly demanding applications where standard stainless steels such as 304 or 316 are not sufficient.
Manufactured from high-alloy AISI 904L stainless steel, these balls provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Their durability and reliability make them well suited to chemical processing, marine, and offshore industries.
150
Precision Ball Diameter
Why Choose AISI 904L Balls?
AISI 904L is a low-carbon, high-alloy austenitic stainless steel with added nickel, chromium, and molybdenum, as well as copper for enhanced resistance to strong acids such as sulphuric acid. It is specifically designed for use in highly corrosive environments where standard stainless steels would degrade over time.
AISI 904L balls provide exceptional longevity, corrosion resistance, and structural integrity, making them a premium solution for critical applications.
Key Benefits
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Exceptional corrosion resistance in aggressive environments
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Outstanding resistance to acids, including sulphuric acid
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High resistance to pitting and crevice corrosion
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Excellent resistance to stress corrosion cracking
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Long service life in harsh chemical conditions
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Non-magnetic in the annealed condition
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Suitable for extreme industrial and marine applications
Manufacturing & Supply
We are capable of manufacturing and supplying loose AISI 904L stainless steel balls in nearly every variation of grade, maintaining an extensive stock with sizes ranging from 0.2mm to 150mm in diameter.
Please feel free to rate our products and service or send us your comments by using our form opposite →
Additionally, we offer a bespoke ball manufacturing service, which follows the same process controls and traceability but uses a customer’s own material. For further details, please email us or call +44 (0) 1922 710515.
Applications
AISI 904L balls are widely used in environments requiring maximum corrosion resistance and chemical durability.
Typical applications include:
- Chemical processing equipment
- Marine and offshore systems
- Oil and gas industry components
- Acid handling and storage systems
- Pumps, valves, and fittings in corrosive environments
- Pharmaceutical and food processing equipment
AISI 904L balls are available in a range of sizes and tolerances to meet both standard and high-precision engineering requirements.
Why Atlas Ball & Bearing?
- UK-based manufacturer and global supplier of precision steel balls
- Extensive stock with fast UK and international delivery
- Wide range of sizes, grades, and tolerances
- Expertise in high-alloy and super austenitic stainless steels
- Consistent quality, surface finish, and full material traceability
Related Materials
Useful terms and definitions
Batch or Lot:
A defined quantity of balls manufactured under conditions presumed to be uniform and which is considered an entity.
Nominal Ball Diameter:
The diameter value that is used for the general identification of a ball size.
Single Ball Diameter:
The distance between two parallel planes tangential to the actual ball surface.
Diameter Tolerance per Batch:
The allowed difference between the smallest measured ball diameter and the largest ball diameter within the same batch or lot quantity.
Sphericity:
A measure of roundness expressed as the difference between the measured roundness of a ball and a theoretically perfectly round ball.
Surface Finish or Roughness:
A measure of the texture of a surface. It is quantified by the vertical deviations of the actual surface from its ideal form. If these deviations are large, the surface is rough; if they are small, the surface is smooth.
Ball Grades
| Grade | Diameter Tolerance per Ball | Sphericity | Diameter Tolerance per Unit Container | Basic Diameter Tolerance | Maximum Surface Roughness Micro | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Inch | µ | Inch | µ | Inch | µ | Inch | µ | Inch | µ | |
| 3 | .000003 | 0.076 | .000003 | 0.076 | .000005 | 0.127 | ±.00003 | ± 0.076 | 0.5 | 0.013 |
| More details about Grade 3... | ||||||||||
| 5 | .000005 | 0.127 | .000005 | 0.127 | .00001 | 0.25 | ±.00005 | ± 0.127 | 0.8 | 0.02 |
| More details about Grade 5... | ||||||||||
| 10 | .000010 | 0.25 | .000010 | 0.25 | .00002 | 0.51 | ±.0001 | ± 2.5 | 1.0 | 0.025 |
| More details about Grade 10... | ||||||||||
| 15 | .000015 | 0.38 | .000015 | 0.38 | .00003 | 0.76 | ±.0001 | ± 2.5 | 1.2 | 0.03 |
| More details about Grade 15... | ||||||||||
| 25 | .000025 | 0.63 | .000025 | 0.63 | .00005 | 1.27 | ±.0001 | ± 2.5 | 1.5 | 0.038 |
| More details about Grade 25... | ||||||||||
| 50 | .00005 | 1.27 | .00005 | 1.27 | .0001 | 2.5 | ±.0002 | ± 5 | 3.0 | 0.075 |
| More details about Grade 50... | ||||||||||
| 100 | .0001 | 2.5 | .0001 | 2.5 | .0002 | 5 | ±.0005 | ± 5 | 5.0 | 0.125 |
| More details about Grade 100... | ||||||||||
| 200 | .0002 | 5 | .0002 | 5 | .0004 | 10 | ±.0010 | ± 10 | 8.0 | 0.2 |
| More details about Grade 200... | ||||||||||
| 300 | .0003 | 7.5 | .0003 | 7.5 | .0006 | 15 | ±.0015 | ± 37.5 | N/A | N/A |
| More details about Grade 300... | ||||||||||
| 500 | .0005 | 12.5 | .0005 | 12.5 | .001 | 25 | ±.002 | ± 50 | N/A | N/A |
| More details about Grade 500... | ||||||||||
| 1000 | .001 | 25 | .001 | 25 | .002 | 50 | ±.005 | ± 125 | Not Applicable | Not Applicable |
| More details about Grade 1000... | ||||||||||
| 2000 | .002 | 50 | .002 | 50 | .004 | 100 | ±.005 | ± 125 | N/A | N/A |
| More details about Grade 2000... | ||||||||||
Sample Our Work!
Take the first step towards precision and quality with our expert services. At Atlas Ball & Bearing, we’re committed to delivering top-notch precision balls and rollers for a wide range of industries, including gas, oil, medical, and transportation. Our dedicated team is ready to assist you with custom solutions tailored to your specific needs. Experience the Atlas Ball & Bearing difference now!