SCM420 Steel — Specifications & Listings
JIS G4105 — Japanese case hardening chrome molybdenum steel
Grade Details
| Grade | SCM420 |
| Standard | JIS G4105 |
| Description | Japanese case hardening chrome molybdenum steel |
| Applications | Case hardened gears, cams, pins, shafts |
Equivalent / Similar Grades
Chemical Composition (%)
| C |
Si |
Mn |
Cr |
Mo |
| 0.18–0.23 |
0.15–0.35 |
0.60–0.90 |
0.90–1.20 |
0.15–0.30 |
Mechanical Properties
| Tensile Strength |
≥830 MPa |
| Case Hardness HRC |
58–62 |
| Core Hardness HB |
235–293 |
Typical Available Sizes
| Round Bar |
16mm–200mm dia |
| Flat Bar |
20×8mm–150×40mm |
Sizes are indicative. Contact seller for exact availability.
Active SCM420 Listings on M-EX