Tungsten Carbide (TC) Rings
Supplier in India
Engineered for maximum wear resistance and operational longevity, our premium TC Rings are the trusted choice for high-performance steel rolling mills across India and international markets.
Premium Tungsten Carbide Rings for Rolling Mills
At Kathuria Techmech Pvt. Ltd., we supply precision-engineered Tungsten Carbide (TC) Rings — the industry standard for high-speed finish rolling applications in steel mills. Manufactured with a WC (tungsten carbide) hard phase and a Co-Ni-Cr or pure cobalt binder, these rings deliver an exceptional balance of hardness, toughness, and wear resistance.
With over 40 years of engineering expertise expertise backing our product selection, we source TC Rings that meet exacting metallurgical standards, ensuring each ring performs reliably under the thermal and mechanical stresses of continuous rolling operations. Our rings are widely used across wire rod mills, bar mills, and section mills in all over India and worldwide.
Superior Wear Resistance
WC content up to 94% for maximum surface hardness
Corrosion Resistance
Co-Ni-Cr binder resists mill cooling water attack
Custom Dimensions
Plain, grooved, and notched profiles available
Pan-India Delivery
Fast supply from our Ghaziabad, NCR base
Your Trusted TC Rings Supplier in India
Backed by 40+ years in the rolling mill supply chain, we combine deep technical knowledge with a commitment to quality that keeps India's leading steel producers running at peak efficiency.
40+ Years of Excellence
Decades of experience serving steel rolling mills with engineering products that meet the most demanding operational requirements.
Stringent Quality Control
Each TC Ring is verified against national and industry-standard metallurgical benchmarks before supply — no compromises.
Expert Technical Support
Our engineers advise on grade selection, cooling arrangement, and installation to maximise ring service life at your facility.
Pan-India & Export Supply
Headquartered in Ghaziabad, NCR, we supply clients across most states of India and support international rolling mill projects.
Wide Grade Portfolio
General (R-Series) and High-Cobalt (H-Series) grades covering WC content from 68% to 94% to suit every rolling application.
Competitive Pricing
Direct sourcing relationships allow us to offer premium-grade TC Rings at competitive market prices with reliable lead times.
TC Ring Grade Tables
We supply two primary series of Tungsten Carbide Rings, each optimised for different site conditions and performance demands. Select a series below to view full grade data.
| Grade | Chemical Composition (Wt%) | Physical & Mechanical Properties | |||
|---|---|---|---|---|---|
| WC (%) | Co+Ni+Cr (%) | Density g/cm³ ±0.15 | Hardness ≥ HRA ±0.5 | Bending Strength ≥ N/mm² | |
| KTPL08R | 92 | 8 | 14.7 | 88.0 | 2800 |
| KTPL10R | 90 | 10 | 14.5 | 87.5 | 2750 |
| KTPL12R | 88 | 12 | 14.2 | 86.0 | 2700 |
| KTPL15R | 85 | 15 | 14.1 | 85.0 | 2650 |
| KTPL18R | 82 | 18 | 13.7 | 83.5 | 2650 |
| KTPL20R | 80 | 20 | 13.5 | 83.0 | 2600 |
| KTPL25R | 75 | 25 | 13.1 | 82.0 | 2500 |
| KTPL30R | 70 | 30 | 12.7 | 80.0 | 2400 |
| KTPL32R | 68 | 32 | 12.5 | 79.0 | 2400 |
Typical physical & & mechanical properties are listed with variation ranges per relevant national and industry standards. Parameters are for reference only; final supply is subject to technical confirmation.
| Grade | Chemical Composition (Wt%) | Physical & Mechanical Properties | |||
|---|---|---|---|---|---|
| WC (%) | Co+Ni+Cr (%) | Density g/cm³ ±0.15 | Hardness ≥ HRA ±0.5 | Bending Strength ≥ N/mm² | |
| KTPL06H | 94 | 6+0+0 | 14.8 | 89.0 | 2580 |
| KTPL08H | 92 | 8+0+0 | 14.7 | 88.5 | 2600 |
| KTPL10H | 90 | 10+0+0 | 14.5 | 88.0 | 2700 |
| KTPL15H | 85 | 15+0+0 | 14.1 | 85.0 | 2700 |
| KTPL20H | 80 | 20+0+0 | 13.5 | 83.0 | 2700 |
| KTPL25H | 75 | 25+0+0 | 13.1 | 81.5 | 2550 |
| KTPL30H | 70 | 30+0+0 | 12.7 | 80.0 | 2500 |
| KTPL32H | 68 | 32+0+0 | 12.5 | 78.5 | 2400 |
Typical physical & mechanical properties are listed with variation ranges per relevant national and industry standards. Parameters are for reference only; final supply is subject to technical confirmation.
TC Ring Types & Profiles
Kathuria Techmech supplies Tungsten Carbide Rings in three standard profile configurations to suit varying groove geometries and rolling pass designs.
TC Rings With Grooves
Smooth-bore tungsten carbide rings used in guide roller and idle roller applications where a plain contact surface is required.
TC Rings Without Grooves
Standard profiled rings for wire rod and bar mills. Groove geometry is manufactured to customer specification for accurate section rolling.
TC Rings With Notched Grooves
Specialised notched-groove rings that improve coolant flow distribution and reduce thermal stress concentration during high-speed rolling.
Cooling Arrangement for TC Rings
Correct cooling is critical to maximising the service life of Tungsten Carbide rings. The following parameters apply to traditional high-speed finish rolling applications.
Cooling Water — Key Parameters
- Pressure range: 0.4 – 0.6 MPa
- Spray angle: Radial, 15–30° to roller rotation direction
- Nozzle distance: 150–250 mm from carbide ring surface
- Water from hot exit side: Approx. 30% of total flow
- Stream width: 2× the groove width; no mist or scatter
- Temperature: ≤ 35°C
Water Flow Rate by Groove Width
| Groove Width (mm) | < 12 | 12–24 | 24–36 | 36–50 |
|---|---|---|---|---|
| Flow Rate (m³/stand·hr) | 18 | 20 | 22 | 25 |
Water Volume by Binder Content
| Binder Content (%) | 6 | 10 | 15 | 20 | 25 | 30 |
|---|---|---|---|---|---|---|
| Volume (L / groove mm · min) | 56 | 48 | 40 | 32 | 24 | 16 |
Cooling Water Quality Requirements
Series selection guide: pH ≥ 7.2 → use KTPL H-Series (High-Cobalt) | pH < 7.2 → use KTPL R-Series (General)
Where Are TC Rings Used?
Our Tungsten Carbide Rings are specified by engineers across a wide range of rolling and forming applications that demand high surface hardness and dimensional stability.
Need Tungsten Carbide Rings for Your Rolling Mill?
Share your dimensional requirements and operating conditions with us — we'll recommend the right grade, supply quickly, and provide full technical support for installation and cooling setup.
