SACM645 Steel — Specifications & Listings
JIS G4202 — Japanese aluminium chrome molybdenum nitriding steel
Grade Details
| Grade | SACM645 |
| Standard | JIS G4202 |
| Description | Japanese aluminium chrome molybdenum nitriding steel |
| Applications | Nitrided gears, crankshafts, cylinder liners, gauges |
Equivalent / Similar Grades
Chemical Composition (%)
| C |
Si |
Mn |
Cr |
Mo |
Al |
| 0.40–0.50 |
0.15–0.50 |
0.55–0.90 |
1.30–1.70 |
0.15–0.30 |
0.70–1.20 |
Mechanical Properties
| Tensile Strength |
930–1080 MPa |
| Surface Hardness HV |
≥900 (nitrided) |
| Core Hardness HB |
269–321 |
Typical Available Sizes
| Round Bar |
20mm–200mm dia |
| Flat Bar |
25×10mm–150×50mm |
Sizes are indicative. Contact seller for exact availability.
Active SACM645 Listings on M-EX