13-8 VIM-VAR Stainless Steel Balls
Ball Bearing
High Strength Stainless Steel
Our 13-8 VIM-VAR stainless steel ball range is engineered for applications requiring high strength, excellent toughness, and dependable corrosion resistance. Produced using Vacuum Induction Melting (VIM) and Vacuum Arc Remelting (VAR) processes, 13-8 VIM-VAR delivers enhanced cleanliness, improved structural integrity, and consistent material properties. These characteristics make it highly suitable for demanding aerospace, defence, medical, and precision engineering applications where performance and reliability are critical. At Atlas Ball & Bearing, we supply 13-8 VIM-VAR balls to precise specifications with full manufacturing capability and technical support.
150
Precision Ball Diameter
Why Choose 13-8 VIM-VAR Stainless Steel Balls?
13-8 VIM-VAR stainless steel balls are designed for applications requiring exceptional mechanical properties combined with excellent material consistency. The alloy offers high strength through precipitation hardening while maintaining good toughness and corrosion resistance across demanding operating conditions.
Key Benefits
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High strength and hardness
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Excellent toughness and ductility
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Good corrosion resistance
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Enhanced material cleanliness through VIM-VAR processing
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Excellent fatigue performance
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Reliable mechanical properties under demanding conditions
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Good resistance to stress-related cracking
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Suitable for precision and high-performance applications
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Consistent dimensional accuracy for precision engineering
Manufacturing & Supply
We are capable of manufacturing and supplying loose 13-8 VIM-VAR stainless steel balls in nearly every variation of grade, maintaining an extensive stock with sizes ranging from 0.2mm to 150mm in diameter.
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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
13-8 VIM-VAR stainless steel balls are commonly used in applications requiring high strength, excellent reliability, and superior material consistency.
Typical applications include:
- Aerospace components and systems
- Aircraft bearing assemblies
- Defence equipment and systems
- Medical devices and equipment
- High-performance fasteners and mechanical components
- Precision engineering assemblies
- Industrial machinery
- High-load bearing applications
- Motorsport engineering systems
- Specialist manufacturing applications
13-8 VIM-VAR balls are available in a wide range of sizes and tolerances to meet both standard and precision engineering requirements, particularly where high mechanical performance and material quality are essential.
Why Atlas Ball & Bearing?
- UK-based manufacturer and supplier of precision-engineered stainless steel balls
- Extensive stock across specialist stainless steel grades and advanced alloys
- Consistent quality control and dimensional accuracy
- Technical support for aerospace and high-performance engineering applications
- Fast UK and international delivery
- Bespoke manufacturing to exact customer requirements
Related Materials
Cronidur 30 Balls
440C Stainless Steel Balls
Biodur 108 Balls
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!