JIS SMnC420 Steel — Specifications & Listings
JIS — Japanese case hardening Mn-Cr steel per JIS G4053. Close equivalent to 20MnCr5 with similar chemistry and case hardening properties.
Grade Details
| Grade | JIS SMnC420 |
| Standard | JIS |
| Description | Japanese case hardening Mn-Cr steel per JIS G4053. Close equivalent to 20MnCr5 with similar chemistry and case hardening properties. |
| Applications | Case hardened gears, shafts, cams, pins, automotive components |
Chemical Composition (%)
| C |
Mn |
Cr |
Si |
S |
P |
| 0.17–0.23 |
1.15–1.55 |
0.35–0.70 |
0.15–0.35 |
≤0.030 |
≤0.030 |
Mechanical Properties
| Tensile Strength |
785–980 MPa |
| Case Hardness HRC |
58–62 |
| Core Hardness HB |
217–277 |
| Elongation |
≥10% |
Typical Available Sizes
Sizes are indicative. Contact seller for exact availability.
Active JIS SMnC420 Listings on M-EX