- 52100 alloy steel provides high strength, high resistance to corrosion and wear, and good machinability
- Meets ASTM A295 specifications
- Meets grade 25 sphere tolerance
- Reflective finish provides a bright, mirror-like appearance
- Precision tolerance
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52100 Chromium Steel Sphere, Grade G25, Reflective Finish, Precision Tolerance, Inch, ASTM A295
|Price:||$3.75 - $53.71|
|Material Type||Alloy Steel|
|System of Measurement||Inch|
|Specification Met||ASTM A295|
The 52100 chromium steel sphere has a reflective finish, meets American Soc... See more product details
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The 52100 chromium steel sphere has a reflective finish, meets American Society for Testing and Materials International ASTM A295 specifications, meets grade 25 sphere tolerance standards, and has a precision tolerance. The 52100 alloy steel grade has a high carbon and chromium content for high strength, high resistance to corrosion and wear, and good machinability. This material can be heat treated for higher hardness. The reflective finish provides a bright, mirror-like appearance.
Steel is an iron alloy with carbon and other elements that modify the steel to achieve specific properties. In general, steels with higher carbon content have greater strength, hardness, and wear resistance, while those with lower carbon content have more formability, weldability, and toughness. Carbon steels, which include most AISI-SAE grades in the 1000 range, are classified by their level of carbon content as low (below 0.3%), medium (0.3% to 0.6%) and high (0.6% and above). Alloy steels, which include AISI-SAE grades in the 1300 and 4000 ranges and above, incorporate elements such as chromium, molybdenum, and nickel to modify properties like machinability and corrosion resistance. Tool steels, which include most grades with a letter and number grade designation, have high carbide content for wear resistance, high hardness, and the ability to hold a cutting edge. Some tool steels are designed to resist deformation when used in elevated temperatures.
Tensile strength, used to indicate a material’s overall strength, is the peak stress it can withstand before it breaks. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Toughness describes the material's ability to absorb energy before breaking, while hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation. Formability indicates how easily the material can be permanently shaped. Machinability describes how easily it can be cut, shaped, finished, or otherwise machined, while weldability characterizes the ability to be welded.
Top Customer Reviews
The balls are smooth and have a nice heavy weight to them. They are about the same size as a standard shooter marble. For what I needed excellent value.
In reading the reviews it seems like these can solve many a problem when applied to the right application.
Grade 25 are very high quality, the same as other very high-end "bicycle-specific" bearings that cost much more for a smaller quantity.
All of the sizes that I bought came in packs of 100 and each of them have the Lot Number listed on the package label (along with the size), which is nice in case you need to combine bearings for your use from more than one pack. As I understand it, you shouldn't mix bearings from different lot numbers since their tolerances may be slightly different.
Most Recent Customer Reviews
as expected. not much to say about quality or reliability. they are exactly as described. flawless to my view.Published 2 months ago by Joe
Used these balls to make monkey fist key chains, great size and weight no issues herePublished 3 months ago by P. Varney
Bought these after seeing the monkey fist key fobs at a gun show. I know how to make them and thought to give this size a try.Published 15 months ago by Steve Dogen
Just what you would expect. Some nice quality balls. I used them for making some munkyfists that came out really nice!Published 17 months ago by Davy