Tel: 860-571-3602  |
Tel: 860-571-3602  |

Chrome Steel Balls

Chrome Steel Balls - Hartford Technologies

View Sizes, Grades, and Tolerance


Chrome steel is a bearing grade alloy steel. This material is known as 52100 steel in the US, 100Cr6 in Europe, SUJ2 in Japan and GCr15 in China. This fine-grain martensitic steel has high hardness, exceptional wear, surface characteristics and is exceptional for the creation of chrome steel balls. Chrome steel is an excellent material for balls used in various applications such as food grinding systems, vibratory finishing, linear motion components, and check valves.

Manufacture valves? Hartford has extensive capabilities and expertise for the design and manufacturing of balls for valves.


  • Tumbling media
  • Spray can agitation
  • Ball bearings
  • Drawer slides
  • Writing instruments
  • Locking mechanisms


A chrome steel ball demonstrates high hardness, resistance to deformation, and excellent wear characteristics. Chrome balls from Hartford are manufactured from the highest quality chrome alloy electric furnace steel and through-hardened for maximum strength and service life. Our SPC process assures the highest dimensional accuracy and surface finish.

Carbon =0.95 – 1.1%
Chromium = 1.3 -1.6%


Rockwell C – 60 to 66


1/32″ to 2″ in grades 10 through 1000.

Optional Finishes

  • Zinc
  • Nickel
  • Phosphate
  • Black Oxide
  • Colored Finishes

Tell us your requirements for chrome steel balls and let us provide a solution. Hartford Technologies is proud to be a preferred supplier of standard and custom chrome balls for OEMs and Tier 1s. Let us put our 80+ years of experience to work for you!

Hartford Technologies is a multinational supplier of chrome steel balls for applications including automotive steering and seating systems, industrial machinery and bearings, pumps, valves, and agricultural equipment.

Hartford Technologies’ design engineers are among the most knowledgeable in the industry, and our ability to manufacture on both sides of the globe gives Hartford customers a substantial advantage in cost and flexibility. We produce more than one billion balls per year for high-volume OEM applications and can provide fast turn-around to meet stringent delivery requirements.

Request a consultation today for quick, expert application assistance with your next chrome steel ball requirement.

Hartford Technologies is ISO 9001, IATF 16949, ISO 14001, and WBENC (woman-owned) certified.

Request a Quote

Request a Quote