This steel ball is composed of a small percentage of molybdenum, which gives it optimal hardness and excellent wear resistance. Choose this ball for applications requiring increased robustness and exceptional longevity, especially in the field of bearings. With over 40 years of experience, Marteau- Lemarie guarantees fast delivery from our stock in France.
Chemical composition of 100CrMo7-3 chrome steel ball
| Element | C | If | Mn | P | S | Cr | Mo | Cu | Al | O |
|---|---|---|---|---|---|---|---|---|---|---|
| % | 0,93-1,05 | 0,15-0,45 | 0,60-0,80 | 0.025 max | 0.015 max | 1,65-1,95 | 0,20-0,35 | max. 0.30 | 0.050 max | 0.0015 max |
Physical characteristics of 100CrMo7-3 chrome steel ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 7.82 | g/cm3 |
| Young Module | 205 | GPA |
| Thermal expansion coefficient | 13.1 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 42.7 | W/m·K |
| Electrical resistivity | 218 | × 10 - 9 D·m |
| Specific heat | 477 | J/kg·K |
| Relative magnetic permeability | > 300 | — |
| Magnetic behaviour | Ferromagnetic | — |
Hardness and mechanical resistance of 100CrMo7-3 chrome steel ball
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 57-65 | HRC |
| Exercise temperatures | -60/150 | ° C |
| Exercise temperatures | -76/302 | °F |
Available diameters and grades for 100CrMo7-3 chrome steel ball
| Parameter | Value |
|---|---|
| Minimum diameter | 45 mm — 1-3/4′′′ |
| Maximum diameter | 300 mm — 12′′ |
| Grades available | See International Standards |
| Precision standards | ISO 3290-1 / DIN 5401 / AFBMA |
International Standards for Chrome Steel Ball 100CrMo7-3
| ITA | USA (AISI) | DIN (GER) | AFNOR (FRA) | UK | GOST (RUS) | GB (CHN) | JIS (JPN) |
|---|---|---|---|---|---|---|---|
| 100CrMo7-3 | K19965 | 1.3536 | 100CrMo7-3 | 100CrMo7-3 | – | 100CrMo7-3 | SUBJ5 |
Applications of 100CrMo7-3 chrome steel ball
As with other bearing steels, they are ideal for applications requiring high hardness, wear and stress resistance.
