AISI 416 Stainless Steel Balls

Ball Bearing

High Machinability & Moderate Corrosion Resistance

Our AISI 416 stainless steel ball range is designed to deliver excellent machinability, good strength, and reliable performance in applications where ease of manufacturing and moderate corrosion resistance are required. As a free-machining martensitic stainless steel, AISI 416 is ideal for precision components that require efficient production and consistent quality. At Atlas Ball & Bearing, we supply AISI 416 balls to precise specifications with full manufacturing capability and technical support.

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Precision Ball Diameter

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Why Choose AISI 416 Stainless Steel Balls?

AISI 416 stainless steel balls are designed for applications where high machinability and good mechanical properties are essential. They offer improved machining performance over other martensitic stainless steels, making them a cost-effective solution for high-volume production and precision components.

Key Benefits

  • Excellent machinability for efficient and cost-effective production
  • Good strength and hardness after heat treatment
  • Moderate corrosion resistance in mild environments
  • Suitable for precision-machined components
  • Good dimensional stability
  • Cost-effective alternative to higher alloyed stainless steels
  • Performs well in dry or controlled environments
  • Reliable consistency for engineering applications

Manufacturing & Supply

We are capable of manufacturing and supplying loose AISI 416 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.

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Applications

AISI 416 stainless steel balls are commonly used in applications requiring excellent machinability, good strength, and moderate corrosion resistance in controlled environments.

Typical applications include:

  • Precision-engineered components
  • Automotive and mechanical systems
  • Industrial machinery
  • Valve and pump components
  • Fasteners and fittings
  • General engineering and manufacturing

 

AISI 416 balls are available in a wide range of sizes and tolerances to meet both standard and precision engineering requirements, particularly where machining efficiency and cost-effectiveness are key considerations.

Why Atlas Ball & Bearing?

  • UK-based manufacturer and supplier of precision-engineered stainless steel balls
  • Extensive stock across a wide range of stainless steel grades
  • Consistent quality control and dimensional accuracy
  • Technical support for engineering and industrial applications
  • Fast UK and international delivery
  • Bespoke manufacturing to exact customer requirements

Related Materials

420 Stainless Steel Balls

High hardness martensitic stainless steel suitable for precision bearings.

430F Stainless Steel Balls

Good machinability with moderate corrosion resistance for general engineering use.

316 Stainless Steel Balls

Superior corrosion resistance for chemical, marine, and industrial environments.
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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 Grade Table (Sticky 1st Column)

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!

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