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Graphite Steel Roll (GS)
The characteristics of graphite steel rolls are similar to those of adamite rolls. The main character is that it contains a small amount of fine graphite in its microstructure, which will increase its resistance to fire crack and prevent oxidized scales from adhering. They are suitable for blooming and roughing stands.
Table.1 Chemical Composition %
| Symbol | C | Si | Mn | Cr | Ni | Mo |
| GS140 | 1.30-1.50 | 1.20-1.60 | 0.50-1.00 | 0.40-1.00 | 0.20-0.50 | |
| GS160 | 1.50-1.70 | 0.80-1.50 | 0.60-1.00 | 0.60-1.00 | 0.20-1.00 | 0.20-0.80 |
| GS190 | 1.80-2.00 | 0.80-1.50 | 0.60-1.00 | 0.50-2.00 | 0.60-2.20 | 0.20-0.80 |
Table.2 Prosperities & Application
| Symbol | Hardness HS |
Tensile Strength MPa |
Elongation % | Dimension MM |
Unit N.W KGS |
Application |
| GS140 | 36-46 | ≥540 | ≥1.0 | ￠400-1400 | 1000-40000 | Roughing stands of small and medium section mills , bar and wire mills and hot strip mills, roll sleeves for universal mills |
| GS160 | 40-60 | ≥500 | ≥1.0 | |||
| GS190 | 55-65 | ≥450 | ≥0.4 |
