Complaint
| Designation des rouleaux | C | Si | Mn | P | S | Ni | Cr | Mo | V | W | Nb |
| CrMo indefinite chilled cast iron rolls | 2.9/3.6 | 0.6/1.2 | 0.4/1.2 | ≤0.2 | ≤0.1 | 0.6/1.2 | 0.2/0.6 | ||||
| NiCrMo indefinite chilled cast iron rolls (I) | 2.9/3.6 | 0.6/1.2 | 0.4/1.2 | ≤0.2 | ≤0.1 | 0.5/1.0 | 0.7/1.2 | 0.2/0.6 | |||
| NiCrMo indefinite chilled cast iron rolls (II) | 2.9/3.6 | 0.6/1.2 | 0.4/1.2 | ≤0.2 | ≤0.1 | 1.0/2.0 | 0.7/1.2 | 0.2/0.6 | |||
| NiCrMo indefinite chilled cast iron rolls (III) | 2.9/3.6 | 0.6/1.2 | 0.4/1.2 | ≤0.2 | ≤0.1 | 2.0/3.0 | 0.7/1.2 | 0.2/1.0 | |||
| NiCrMo indefinite chilled cast iron rolls (IV) | 2.9/3.6 | 0.6/1.5 | 0.4/1.2 | ≤0.1 | ≤0.05 | 3.0/4.8 | 1.0/2.0 | 0.2/1.0 | |||
| NiCrMo indefinite chilled cast iron rolls (V) | 2.9/3.6 | 0.6/1.5 | 0.4/1.2 | ≤0.1 | ≤0.05 | 3.0/4.8 | 1.0/2.0 | 0.2/2.0 | 0.2/2.0 | 0/2.0 | 0/2.0 |
| Designation of rolls | Barrel hardness (HSD) | Neck hardness (HSD) | Résistance à la traction (MPa) |
| CrMo indefinite chilled cast iron rolls | 55~70 | 35~55 | >160 |
| NiCrMo indefinite chilled cast iron rolls (I) | 60~72 | 35~55 | >160 |
| NiCrMo indefinite chilled cast iron rolls (II) | 62~72 | 35~55 | >160 |
| NiCrMo indefinite chilled cast iron rolls (III) | 65~75 | 35~55 | >350 |
| NiCrMo indefinite chilled cast iron rolls (IV) | 70~83 | 35~55 | >350 |
| NiCrMo indefinite chilled cast iron rolls (V) | 77~85 | 35~55 | >350 |
| Designation of rolls | Microstructure |
| CrMo indefinite chilled cast iron rolls | Pearlite + cementite + small percentage graphite |
| NiCrMo indefinite chilled cast iron rolls (I) | Pearlite + cementite + small percentage graphite |
| NiCrMo indefinite chilled cast iron rolls (II) | Fine pearlite + cementite + small percentage graphite |
| NiCrMo indefinite chilled cast iron rolls (III) | Sorbite + cementite + small percentage graphite |
| NiCrMo indefinite chilled cast iron rolls (IV) | Sorbite + cementite + small percentage graphite |
| NiCrMo indefinite chilled cast iron rolls (V) | Tempered martensite + small percentage bainite + cementite + small percentage graphite |
| Designation of rolls | Application |
| CrMo indefinite chilled cast iron rolls | Section mill, bar mill, intermediate and finishing stands of wire-rod mill |
| NiCrMo indefinite chilled cast iron rolls (I) | Section mill, bar mill, intermediate and finishing stands of wire-rod mill |
| NiCrMo indefinite chilled cast iron rolls (II) | Section mill, bar mill, intermediate and finishing stands of wire-rod mill |
| NiCrMo indefinite chilled cast iron rolls (III) | Section mill, bar mill, intermediate and finishing stands of wire-rod mill, tube stretch reducing mill |
| NiCrMo indefinite chilled cast iron rolls (IV) | Work roll for finishing stands of hot strip mill, Intermediate plate mill, tempered mill |
| NiCrMo indefinite chilled cast iron rolls (V) | Work roll for finishing stands of hot strip mill, Intermediate plate mill, tempered mill |
