Tungsten Carbide rolls, also known as TC rings, are composite tools made from tungsten carbide and a metal binder like cobalt or nickel. These rings are renowned for their exceptional hardness and wear resistance, making them ideal for applications such as wire rod finishing blocks, strip rolling, and high-efficiency shaping processes.
What Are Tungsten Carbide Roll Rings?
Tungsten Carbide (TC) rings are mill roll components made by combining tungsten carbide powder with a metallic binder like cobalt. Their exceptional hardness, wear resistance, and heat tolerance make them ideal for wire rod finishing and long rolling campaigns.
Key Advantages of TC Rings.
High hardness (Mohs 9).
Excellent wear resistance.
Long service life.
Enhanced efficiency for continuous production.
Technical Properties of TC Rings
Structural Strength.
Forms a dense hexagonal crystal structure.
Young’s modulus ≈ 550 GPa (about twice that of steel).
High Temperature Resistance
Low thermal expansion.
Maintains strength under high heat and high-speed conditions.
Corrosion Resistance
Chemically stable in air at room temperature.
Resistant to hydrochloric and sulfuric acid.
Dissolves only in nitric acid.
Oxidation Behavior
Starts oxidizing at 300°C.
Rapid oxidation at 700°C forming tungsten oxide (WO₃).
Reactivity
Reacts with chlorine at 400°C.
Reacts with fluorine even at 18°C.
Common Applications.
Wire rod finishing blocks.
Narrow strip mills.
Rebar shaping stands.
High-speed rolling mills.
Long campaign rolling operations.
Conclusion
Tungsten Carbide roll rings are essential tools in modern metallurgy, combining extreme hardness with outstanding durability. Their physical and chemical properties ensure consistent performance in harsh industrial environments.
Looking for reliable and durable TC rings for your rolling mill?
Contact CYKC today to find the best solution for your production needs.