Las bolas de acero cromado se utilizan ampliamente como rodamientos de bolas, incluida la industria de vehículos de motor. DPPC selecciona estrictamente sus fuentes (productores) de acero y controla el proceso de tratamiento térmico aplicado a las bolas de acero cromado, y es capaz de garantizar que las bolas tengan una buena composición y dureza. .Las bolas pequeñas se fabrican con alambre de acero; Las bolas grandes se forjan en caliente a partir de barras de acero.
Chrome steel is made to extremely high purity, and via appropriate heat treatment it is easy to obtain an evenly distributed spherical arrangement (of carbon particles) and to achieve even structure and hardness. Chrome steel possesses comparatively high resistance to contact fatigue and friction. Appropriate heat treatment also enables excellent stability of size to be attained.
Material Conversion Chart
| GB/T 18254 | AISI | DIN | JIS |
| GCr15 | E52100 | 100Cr6 | SUJ2 |
GCr15SiMn 100CrMn6
Chemical Analysis
| AISI E52100 | GB/T 18254 GCr15 | |
| C | 0.98~1.10 | 0.95~1.05 |
| Cr | 1.30~1.60 | 1.40~1.65 |
| Mn | 0.25~0.45 | 0.25~0.45 |
| Si | 0.15~0.35 | 0.15~0.35 |
| Si | 0.025max | 0.025max |
| P | 0.025max | 0.025max |
Size range and Grade
| Grade | Size Range（Metric） | Size Range（Inch） |
| G10 | 1.5875~19.05 | 1/16~3/4 |
| G16 | 1.5875~25.4 | 1/16~1 |
| G20 | 1.5875~38.1 | 1/16 ~ 1-1 / 2 |
| G24 | 1,5875 ~ 38,1 | 1/16 ~ 1-1 / 2 |
| G28 | 1,5875 ~ 50,8 | 1/16 ~ 2 |
| G40 | 1,5875 ~ 76,2 | 1/16 ~ 3 |
| G60 | 1,5875 ~ 76,2 | 1/16 ~ 3 |
| G100 | 1,5875 ~ 76,2 | 1/16 ~ 3 |
| G200 | 1,5875 ~ 150 | 1/16 ~ 6 |
| G500 | 1,5875 ~ 250 | 1/16 ~ 10 |
