100CrMnSi6-4, 100CrMn6, 1.3520 - Bearing alloy structural chrome-molybdenum-silicon steel for roling bearing according to EN ISO 683-17.
| Standard | Steel Grade | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | ||||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Al: | Mo: | Ni: | Ti: | Cu: | O: | |
| PN | ŁH15SG | |||||||||||
| 0.95 - 1.10 | 0.95 - 1.25 | 0.40 - 0.65 | <0.027 | <0.02 | 1.30 - 1.65 | - | - | <0.3 | - | <0.25 | - | |
| ISO | 100CrMnSi6-4 - 1.3520 - 3520 | |||||||||||
| 0.93 - 1.05 | 1.0 - 1.2 | 0.45 - 0.75 | <0.025 | <0.03 | 1.40 - 1.65 | <0.05 | <0.1 | - | - | <0.3 | <0.0015 | |
| DIN | 100CrMn6 - 100 CrMn 6 | |||||||||||
| 0.93 - 1.05 | 1.0 - 1.2 | 0.45 - 0.75 | <0.025 | <0.015 | 1.40 - 1.65 | <0.05 | - | - | - | <0.3 | - | |
| UNE | F-1312 - F1312 | |||||||||||
| 0.95 - 1.10 | 0.95 - 1.25 | 0.45 - 0.75 | <0.03 | <0.025 | 1.40 - 1.65 | - | - | - | - | - | - | |
| AFNOR | 100 CM 6 - 100CM6 | |||||||||||
| 0.90 - 1.05 | 1.00 - 1.20 | 0.50 - 0.70 | <0.025 | <0.015 | 1.40 - 1.65 | <0.05 | <0.1 | <0.25 | - | <0.3 | - | |
| GOST TU | ShCh15SG - SHKH15SG - ШХ15СГ - SHH15SG | |||||||||||
| 0.95 - 1.05 | 0.9 - 1.2 | 0.40 - 0.65 | <0.027 | <0.02 | 1.30 - 1.65 | - | - | <0.3 | <0.01 | <0.025 | <0.0015 | |
| PN | NCMS | |||||||||||
| 0.95 - 1.10 | 0.90 - 1.20 | 0.40 - 0.70 | <0.03 | <0.03 | 1.30 - 1.65 | - | - | - | - | - | - | |
| UNS | K 19195 - K19195 - ASTM A485 - A 485 | |||||||||||
| 0.85 - 1.00 | 1.40 - 1.70 | 0.50 - 0.80 | <0.025 | <0.025 | 1.40 - 1.80 | - | <0.1 | <0.25 | - | <0.35 | - | |
| ČSN | ČSN 14 209 - ČSN 14209 | |||||||||||
| 0.90 - 1.10 | 0.90 - 1.20 | 0.35 - 0.65 | <0.027 | <0.03 | 1.30 - 1.65 | - | - | <0.3 | - | <0.25 | - | |
100CrMnSi6-4, 100CrMn6, 1.3520 - application and specification
High-carbon steel for ball bearings with higher hardenability than, for example, ŁH15, 100Cr6, for elements with a cross section of more than 30mm, for balls and bearing needles, roller bearing rings and discs, precision bearings and shafts. The steel is suitable for working at elevated temperatures and corrosive environment. It is characterized by high resistance to abrasion and tempering. It is hardened transverselly to a thickness of 50mm
100CrMnSi6-4, 1.3520, 100CrMn6 - Mechanical and physical properties, heat treatment
| Mechanical properties | ||
|---|---|---|
| Heat treatment | Tensile strength | Hardness |
| After annealing with limited hardness | - | ≤ 241 HB |
| After spheroidizing annealing | 570 - 720 MPa | 179 - 217 HB |
| After heat hardening and spheroidizing annealing | 590 - 780 MPa | 179 - 235 HB |
| After hardening and tempering | - | ≤ 61 HRC |
| Physical properties | ||
| Density, ρ | ~7,85 kg/dm³ | |
| Linear expansion coefficient - α | ~11,9 ⋅ 10⁻⁶ K⁻¹ | |
| Process of heat treatment | ||
| Softening annealing | 750 - 800℃ | |
| Hardening | 830 - 870℃ | in oil or water |
| Tempering at | 150 - 170℃ | |
Thermal properties of 100CrMnSi6-4, 1.3520
Thermal conductivity coefficient
| Delivery condition | The λ value at temperatures | |
|---|---|---|
| 20℃ | 100℃ | |
| Normalized | 0.42 W/(cm ⋅ K) | - |
| after annealing on a spheroidite | - | 0.607 W/(cm ⋅ K) |
- Specific heatcp
| Value cp | ||||||
|---|---|---|---|---|---|---|
| Temperature range | 20℃ | 45℃ | 525℃ | 981℃ | ||
| kJ/(kg ⋅ K) | 0.50 | 0.510 | 0.787 | 0.727 | ||
| cal/(g ⋅ K) | 0.12 | 0.122 | 0.188 | 0.174 | ||
In the grade of 100CrMnSi6-4, 1.3520 the company provides:
- Rolled and forged bars 100CrMn6, 100CrMnSi6-4, 1.3520
- Flat bars 100CrMn6, 100CrMnSi6-4, 1.3520
- Forgings and forged rings 100CrMn6, 100CrMnSi6-4, 1.3520
The list of equivalents and other designations of ŁH15SG:
100CrMnSi6-4, 1.3520, 3520, 100CrMn6, 100 CrMn 6, F-1312, F1312, 100 CM 6, 100CM6, ShCh15SG, SHKH15SG, ШХ15СГ, SHH15SG, NCMS, K 19195, K19195, ASTM A485, A 485, ČSN 14 209, ČSN 14209