INTRODUCTION
A new deoxidizing material, silicon manganese ball, is used to meet the needs of users to reduce costs and improve benefits. The product is a spherical block (specification 4.5 · 2.5cm) made of silicon manganese powder particles, with the quality and chemical composition of 55-15.
| Brand | chemical composition |
| Mn | Si | C | P | S |
| I | II | III |
| ≤ |
| FeMn64Si27 | 60.0-67.0 | 25.0-28.0 | 0.5 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn67Si23 | 63.0-70.0 | 22.0-25.0 | 0.7 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn68Si22 | 65.0-22.0 | 20.0-23.0 | 1.2 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn64Si23 | 60.0-67.0 | 20.0-25.0 | 1.2 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn68Si18 | 65.0-22.0 | 17.0-20.0 | 1.8 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn64Si18 | 60.0-67.0 | 17.0-20.0 | 1.8 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn68Si16 | 65.0-22.0 | 14.0-17.0 | 2.5 | 0.10 | 0.15 | 0.25 | 0.04 |
| FeMn64Si16 | 60.0-67.0 | 14.0-17.0 | 2.5 | 0.20 | 0.25 | 0.30 | 0.05 |
