SUM25 Steel — Specifications & Listings
JIS G4804 — Japanese free cutting steel, higher S than SUM22
Grade Details
| Grade | SUM25 |
| Standard | JIS G4804 |
| Description | Japanese free cutting steel, higher S than SUM22 |
| Applications | High volume automatic machining, precision parts |
Equivalent / Similar Grades
Chemical Composition (%)
| C |
Mn |
S |
P |
| ≤0.15 |
0.85–1.15 |
0.26–0.35 |
0.04–0.09 |
Mechanical Properties
| Tensile Strength |
390–510 MPa |
| Hardness |
≤163 HB |
Typical Available Sizes
| Round Bar |
6mm–100mm dia |
| Hex Bar |
10mm–75mm A/F |
Sizes are indicative. Contact seller for exact availability.
Active SUM25 Listings on M-EX