Description
SUM43 Round Bars
SUM 43 is a Free Cutting Steels Manufactured by adding sulfur to carbon steel, or by combining phosphorus and /or lead with sulfur, especially in order to improve machinability.
SUM 43 comes under Japanese Standard of JIS G4804.
SUM43 Chemical Composition :
| Elements | Min. | Max. |
| C | 0.40 | 0.48 |
| Mn | 1.35 | 1.65 |
| P | – | 0.04 |
| S | 0.24 | 0.33 |
