Audited Supplier
rm
Special Casting
Metal
Cast Iron
Permanent
Galvanized
Ra0.05
Zinc oxide
+/-0.15mm
GB
ISO 9001:2000
1500mm
3000mm
Sinya
Steel Frame
ISO
China
84553000
Product Description
Ductile Iron Roller, rolling mill for casting and rolling
Mill rolls are the main spare parts and are consumed in a large amount for steel mills. We started our business first from this material since the inception. Now they are our star products. From many years' experience for the full production process, we provide our customers all the technology support from roll's melting, casting, forging, heat treatment, machining and packing. Now we have built up a world-wide reputation for carrying out both domestic and overseas markets. Our worldwide customers covered some multinational iron and steel groups in America, Southeast Asia and Europe. Our max export is 3600 tons in 2019.
| Mechanical Property | Centrifugal Castings | Static Castings |
| Hardness of Body | HSD50-80 | HSD40-75 |
| Hardness of Neck | HSD35-48 | HSD-32-55 |
| Tensile Srength of Core | >450MPa | >300Mpa |
| Grade | Hardness (HSD) | C | Si | Mn | Ni | Cr | Mo | Mg | P | S |
| SGI | 40-55 | 3.2-3.7 | 1.0-2.5 | 0.5-1.0 | 0.2-0.6 | 0.2-0.6 | >0.04 | <0.2 | <0.03 | |
| SGII | 55-70 | 3.2-3.7 | 1.2-205 | 0.5-1.0 | 0.2-0.6 | 0.2-0.6 | >0.04 | <0.2 | <0.03 | |
| SGIV | 48-70 | 3.2-3.7 | 1.0-2.5 | 0.5-1.0 | 0.5-1.0 | 0.2-0.6 | 0.2-0.6 | >0.04 | <0.2 | <0.03 |
| SGV | 48-70 | 3.2-3.7 | 1.0-2.5 | 0.5-1.0 | 1.0-3.0 | 0.3-1.2 | 0.2-0.8 | >0.04 | <0.2 | <0.03 |
| SGVI | 42-52 | 2.9-3.5 | 1.5-2.4 | 0.4-0.8 | 1.0-2.5 | 0.1-0.5 | 0.4-0.8 | >0.04 | <0.2 | <0.03 |
| SGVII | 55-75 | 2.9-3.5 | 1.5-2.4 | 0.4-0.8 | 2.5-.5 | 0.1-0.5 | 0.4-1.0 | >0.04 | <0.2 | <0.03 |
For roughing or finishing stands rolling mill of section mill, wire and rods, bars mills, finishing stands and back up rolls of strip and narrow strip mills
