SUM43 Steel — Specifications & Listings
JIS G4804 — Japanese resulfurized free cutting steel
Grade Details
| Grade | SUM43 |
| Standard | JIS G4804 |
| Description | Japanese resulfurized free cutting steel |
| Applications | High speed automatic machining, automotive parts |
Equivalent / Similar Grades
Chemical Composition (%)
| C |
Mn |
S |
P |
| 0.40–0.48 |
1.35–1.65 |
0.034–0.070 |
≤0.040 |
Mechanical Properties
| Tensile Strength |
540–690 MPa |
| Elongation |
≥9% |
| Hardness |
163–207 HB |
Typical Available Sizes
| Round Bar |
10mm–100mm dia |
| Hex Bar |
13mm–75mm A/F |
Sizes are indicative. Contact seller for exact availability.
Active SUM43 Listings on M-EX