NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
NEW-ERA STEEL TUBE HOLDING NINGBO PIPEWAY TRADE CO.,LTD
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| Chinese | American | German | Japanese |
| GB | AISI | DIN | JIS |
| GCr15 | SAE52100 | 100Cr6 | SUJ2 |
3. Chemical Composition
| Grades | C | Si | Mn | P | S | Cr | Mo | Cu | Ni |
| GCr15/52100 | 0.95-1.05 | 0.15-0.35 | 0.2-0.4 | ≤0.027 | ≤0.02 | 1.3-1.65 | ≤0.1 | ≤0.25 | ≤0.3 |
| 100Cr6 | 0.95-1.05 | 0.15-0.35 | 0.25-0.45 | ≤0.025 | ≤0.025 | 1.4-1.65 | ≤0.08 | ≤0.25 | ≤0.3 |
4. Heat Treatment
| Quenching | Tempering | ||||
| Heating Temperature/ºC | Cooling | Hardness/HRC | Heating Temperature/ºC | Cooling | Hardness/HRC |
| 830-850 | Oil | 62-65 | 150-190 | Air | 58-62 |
5. Mechanical Properties of ASTM A295 52100 Bearing Steel
| Properties | Metric | Imperial |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Hardness, Brinell | - | - |
| Hardness, Knoop (converted from Rockwell C hardness) | 875 | 875 |
| Hardness, Rockwell C (quenched in oil from 150°C tempered) | 62 | 62 |
| Hardness, Rockwell C (quenched in water from 150°C tempered) | 64 | 64 |
| Hardness, Rockwell C (quenched in oil) | 64 | 64 |
| Hardness, Rockwell C (quenched in water) | 66 | 66 |
| Hardness, Vickers (converted from Rockwell C hardness) | 848 | 848 |
| Machinability (spheroidized annealed and cold drawn. Based on 100 machinability for AISI 1212 steel) | 40 | 40 |
Production Steel BearingTube 100Cr6/GCr15/52100 :
Tags: Bearing pipes, 51200, GCr15, 100Cr6, Bearing steel pipe