
Our Products
High-performance rolling mill rolls custom-engineered for heavy manufacturing and global industrial applications.
SGI (Spheroidal Graphite Iron)
C.K Alloys offers high-performance SGI (Spheroidal Graphite Iron) Rolls, engineered for durability, strength, and superior wear resistance. Designed for demanding rolling mill operations, SGI rolls combine the toughness of steel with the versatility of cast iron, ensuring long-lasting performance and reliability in the steel industry.
| Size | Hardness | Application |
|---|---|---|
| 200–400 mm | 65–85 HRC | High-Speed Rolling |
| 450–750 mm | 60-78 HRC | Roughing / Intermediate |
Chemical Composition Range
| C% | Mn% | Si% | P% | S% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| Min1.20 | Min0.50 | Min0.40 | Min- | Min- | Min0.80 | Min0.80 | Min0.30 |
| Max2.00 | Max1.20 | Max1.20 | Max0.5(MAX) | Max0.05(MAX) | Max2.00 | Max2.50 | Max1.00 |
SG Acicular Rolls (Spheroidal Graphite Acicular Iron Rolls)
C.K Alloys offers advanced SG Acicular Rolls, engineered with a bainitic (acicular) microstructure that delivers superior strength, thermal fatigue resistance, and wear performance. These rolls are specially designed for high-speed and heavy-load rolling mill operations where conventional SGI rolls may not perform optimally.
| Size | Hardness | Application |
|---|---|---|
| 250-450 mm | 60–80 HRC | Hot Rolling |
| 400–600 mm | 58–75 HRC | Roughing |
Chemical Composition Range
| C% | Mn% | Si% | P% | S% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| Min0.80 | Min0.60 | Min0.30 | Min- | Min- | Min0.50 | Min0.80 | Min0.25 |
| Max2.00 | Max1.20 | Max0.80 | Max0.5(MAX) | Max0.05(MAX) | Max1.30 | Max1.60 | Max0.60 |
SG Iron Rolls (Spheroidal Graphite Iron Rolls – Standard Grade)
C.K Alloys manufactures reliable and cost-effective SG Iron Rolls, designed for light to medium-duty rolling applications. These rolls offer a balanced combination of strength, wear resistance, and machinability, making them an economical choice for general rolling mill operations.
| Size | Hardness | Application |
|---|---|---|
| 150-300 mm | 50–70 HRC | Light Rolling |
| 300–500 mm | 45–65 HRC | Medium Rolling |
Chemical Composition Range
| C% | Mn% | Si% | P% | S% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| Min2.20 | Min0.40 | Min1.50 | Min- | Min- | Min0.20 | Min0.20 | Min0.05 |
| Max3.60 | Max1.00 | Max2.80 | Max0.8(MAX) | Max0.06(MAX) | Max0.80 | Max0.80 | Max0.30 |
WSG Rolls (White Spheroidal Graphite Iron Rolls)
C.K Alloys manufactures premium WSG Rolls, designed specifically for finishing stands where superior surface finish and extreme wear resistance are critical. These rolls combine the hardness of white iron with the toughness of nodular graphite, ensuring excellent performance in final rolling stages.
| Size | Hardness | Application |
|---|---|---|
| 200-400 mm | 75–90 HRC | Finishing |
| 400–600 mm | 70–85 HRC | Precision Finishing |
Chemical Composition Range
| C% | Mn% | Si% | P% | S% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| Min2.80 | Min0.40 | Min0.50 | Min- | Min- | Min0.50 | Min1.00 | Min0.20 |
| Max3.80 | Max1.00 | Max1.50 | Max0.05(MAX) | Max0.05(MAX) | Max1.50 | Max2.50 | Max0.80 |
Alloy Steel Graphite Rolls
C.K Alloys offers high-performance Alloy Steel Graphite Rolls, engineered for extreme rolling conditions requiring superior strength, toughness, and heat resistance. These rolls combine alloy steel properties with graphite dispersion to provide excellent thermal stability, reduced friction, and long operational life in heavy-duty applications.
| Size | Hardness | Application |
|---|---|---|
| 300-600 mm | 60–85 HRC | Finishing |
| 600–900 mm | 50–75 HRC | Precision Finishing |
Chemical Composition Range
| C% | Mn% | Si% | P% | S% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| Min0.80 | Min0.50 | Min0.50 | Min- | Min- | Min0.80 | Min1.00 | Min0.30 |
| Max1.80 | Max1.20 | Max1.50 | Max0.05(MAX) | Max0.05(MAX) | Max2.50 | Max3.50 | Max1.20 |
Adamite Rolls
C.K Alloys manufactures high-quality Adamite Rolls, an intermediate material combining the properties of cast iron and steel. These rolls offer an excellent balance of wear resistance and toughness, making them ideal for roughing and intermediate rolling applications where both strength and durability are required.
| Size | Hardness | Application |
|---|---|---|
| 300-600 mm | 55–75 HRC | Roughing |
| 600–1000 mm | 45–65 HRC | Intermediate |
Chemical Composition Range
| C% | Mn% | Si% | P% | S% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| Min1.20 | Min0.50 | Min0.50 | Min- | Min- | Min0.50 | Min0.80 | Min0.20 |
| Max2.20 | Max1.20 | Max1.50 | Max0.05(MAX) | Max0.05(MAX) | Max1.50 | Max2.00 | Max0.80 |







