1.6523 case hardening steel
1.6523 steel is a low alloy nickel, chromium, molybdenum case hardening steel,1.6523 alloy steel has good external and internal strength, so there with high wear-resistant. As a carburized steel, it is usually used to make many medium-strength tools.
1.6523 Steel equivalent standards:
| DIN | ASTM | EN | BS | JIS |
| 1.6523/ 21NiCrMo2 |
8620 | 1.6523/ 20NiCrMo2-2 |
805M20 | SNCM220 |
1.6523 steel Mechanical Properties:
| Tensile strength: 530 MPa |
| Yield strength:385 MPa |
| Elastic modulus:190-210 GPa |
| Bulk modulus (typical for steel):140 GPa |
| Shear modulus (typical for steel):80 GPa |
| Poisson’s ratio: 0.27-0.30 |
| Izod Impact:115 J |
| Hardness, Brinell:149 |
| Hardness, Knoop (converted from Brinell hardness):169 |
| Hardness, Rockwell B (converted from Brinell hardness): 80 |
| Hardness, Vickers (converted from Brinell hardness): 155 |
