Product Name: Ductile Iron Rolls Application Fields: Bar, Wire Rod, Hot Rolling, Finishing Rolling Processing Technology: Centrifugal Casting + Heat Treatment, Quenching and Tempering, Surface Nondestructive Testing Delivery Method: Lathe Machining as Required, Delivered with Nondestructive Inspection Passed
product presentation
Acicular Bainite Nodular Cast Iron Roll is made of Ni, Mn, Cr, Mo and other alloy, it has acicular structure (Bainite+ some martensite) matrix, with higher strength than pearlite spheroidal graphite cast iron roll, as well as higher wearable resistance. Static casting and centrifuge casting are available.
Product Parameters
Size | Ф200mm≤body diametr≤Ф1200mm | |
Mill stand | Section mills | Finished |
H-shaped mills | ||
Wire & rod mills | Middle Finished ，Finished | |
Strip mills | Finished | |
Chemical Composition
Material | C% | Si% | Mn% | Cr% | Ni% | Mo% |
SGB I | 3.00-3.50 | 1.40-2.40 | 0.20-0.80 | ≤0.50 | 2.30-3.50 | 0.40-1.00 |
SGB II | 3.00-3.50 | 1.20-2.00 | 0.20-0.80 | 0.20-1.00 | 3.00-4.50 | 0.40-1.00 |
Performance and application
Mark | Hardness（HS） | tensile strength（Mpa） | Bending strength（Mpa） | purpose |
SGB I | 55-70 | ≥400 | 600-800 | Finishing rack light profile steel,rod materials and ribbon steel High-speed wrie pre-finishing |
SGB II | 62-80 | ≥400 | 600-800 |
