Cemented Carbide Composite Rolls
at Best Price in India
Premium-grade cemented carbide composite rolls engineered for superior wear resistance, extended campaign life, and consistent surface finish — trusted by steel rolling mills across Delhi NCR, and all of India.
What Are Cemented Carbide Composite Rolls?
Cemented carbide composite rolls combine an ultra-hard tungsten carbide (WC) outer shell with a tough steel or cast-iron core. This two-material architecture delivers the extreme wear resistance of carbide where it is needed most — at the roll surface — while the ductile core absorbs the shock and thermal stresses inherent in hot and cold rolling operations.
As a leading cemented carbide composite roll supplier in India, Kathuria Techmech Pvt. Ltd. sources and supplies these rolls to steel mills, wire rod mills, and bar mills across Delhi NCR, and the wider Indian market at the most competitive prices.
- Hard, wear-resistant carbide shell for longer campaign life
- Tough, ductile steel/iron core for shock absorption
- Ideal for finishing and pre-finishing stands
- Excellent thermal shock and oxidation resistance
- Consistent diameter retention throughout the campaign
- Available in custom dimensions on request
Cemented Carbide Composite Roll — General Specifications
The specifications below represent standard parameters. Custom grades, dimensions, and surface treatments are available to match your mill's exact requirements. Contact our engineers for a tailored recommendation.
| Parameter | Standard Range / Value | Notes |
|---|---|---|
| Shell Material | WC-Co Cemented Carbide (Tungsten Carbide) | WC content 80–94% |
| Core Material | Ductile Cast Iron / Alloy Steel | Grade selected per load requirement |
| Shell Hardness | 86–92 HRA / 55–75 HRC equivalent | Vickers HV 1300–1600 typical |
| Roll Diameter | 100 mm – 600 mm | Custom sizes available |
| Barrel Length | Up to 2000 mm | Per mill configuration |
| Shell Thickness | 20 mm – 80 mm | Application-dependent |
| Bending Strength | ≥ 2000 MPa | Grade-dependent |
| Manufacturing Method | Sintering + Centrifugal / Shrink-fit Assembly | Precision-bonded shell-core interface |
| Surface Finish | Ra ≤ 0.4 µm (ground finish) | Mirror polish available |
| Quality Standard | ISO-aligned inspection protocol | Dimensional + hardness + NDT checks |
| Customisation | Available on request | Grade, size, surface treatment |
* Specifications are indicative. Final parameters confirmed at time of order based on your mill design.
Key Features & Performance Advantages
Compared with conventional cast iron or high-speed steel rolls, cemented carbide composite rolls deliver measurable gains across every critical performance metric.
Exceptional Wear Resistance
The tungsten carbide shell exhibits 3–5× greater wear resistance than HSS rolls, dramatically reducing roll consumption and the frequency of roll changes.
Consistent Profile & Surface Finish
Carbide's dimensional stability maintains groove and pass geometry throughout the campaign, producing a superior and repeatable surface finish on rolled products.
Thermal Shock Resistance
The composite construction manages steep temperature gradients during hot rolling, preventing cracking and spalling that limit the life of conventional rolls.
Higher Productivity & Reduced Downtime
Longer campaign life means fewer roll changes and less unplanned downtime, directly improving mill throughput and reducing overall cost per tonne.
Lower Total Cost of Ownership
Despite a higher initial price, the extended service life and reduced regrinding frequency deliver a significantly lower cost per tonne of steel produced.
Custom Engineering
Rolls are manufactured to customer-specified dimensions, cobalt content, and surface grades, ensuring a precise fit for every stand in your rolling line.
Where Are Cemented Carbide Composite Rolls Used?
Our carbide composite rolls are deployed across a wide spectrum of rolling mill stands and steel-industry applications, making them a versatile choice for plants across Delhi NCR, and throughout India.
Wire Rod Mills
(Finishing & Pre-finishing Stands)
Bar & Section Mills
(Intermediate & Finishing Stands)
Cold Rolling Mills
(Skin-pass & Temper Mills)
Tube & Pipe Mills
(Sizing & Reducing Stands)
Hot Strip Mills
(Finishing Stands)
Structural Mills
(High-Impact Passes)
Cemented Carbide Composite Rolls vs. HSS Rolls
Choosing the right roll type for your mill stand is critical. Here is a direct comparison to help you decide:
| Performance Criterion | Cemented Carbide Composite | HSS (High Speed Steel) |
|---|---|---|
| Wear Resistance | Excellent | Very Good |
| Surface Finish Quality | Excellent | Very Good |
| Campaign Life | 3–5× longer | Good |
| Thermal Shock Resistance | Very Good | Excellent |
| Impact / Toughness | Good (composite core helps) | Very Good |
| Cost per Tonne Rolled | Lower over full campaign | Higher roll consumption |
| Best Application | Wire rod / bar finishing stands | Hot strip mill finishing stands |
Need help selecting the right roll for your specific stand position? Contact our technical team for a free consultation.
Why Steel Mills Across India Choose Kathuria Techmech
With over 40 years of engineering experience as a sister company of Kathuria Rollmill Pvt. Ltd., we bring deep metallurgical knowledge and a trusted supply network that serves rolling mills across Delhi NCR, and the entire Indian subcontinent.
40+ Years of Metallurgical Expertise
Decades of hands-on experience in specifying and supplying rolls for every mill type and stand position.
Best Price Guarantee in India
Direct sourcing relationships allow us to offer cemented carbide composite rolls at the most competitive prices without compromising quality.
Rigorous Quality Inspection
Every roll undergoes dimensional checks, hardness testing, and non-destructive testing (NDT) before dispatch.
Reliable & Timely Delivery
Robust logistics network ensures on-time delivery to plants across Delhi NCR, and all major industrial zones in India.
After-Sales Technical Support
Our engineers are available for mill-side consultation, roll selection guidance, and performance troubleshooting.
Global Sourcing, Local Service
International sourcing networks bring world-class carbide rolls to India, backed by local account management and support.
Explore Our Full Range of Industrial Rolling Mill Rolls
Beyond cemented carbide composite rolls, Kathuria Techmech supplies a comprehensive range of rolls for every mill position and application.
HSS Rolls
High-speed steel rolls for finishing stands in hot strip and wire rod mills. Outstanding wear resistance at elevated temperatures.
SGI Rolls
Spheroidal graphite cast iron rolls offering high toughness and fatigue strength for roughing and intermediate stands.
Forged Rolls
Superior strength and thermal fatigue resistance for back-up rolls in cold rolling mills and heavy-duty roughing stands.
Adamite Rolls
Alloyed steel rolls with excellent toughness and surface finish for blooming, billet, and structural mills.
ICDP Rolls
Indefinite chilled double-poured cast iron rolls with consistent hardness for strip and sheet rolling applications.
SGP Rolls
Pearlitic nodular cast iron rolls with high hardness and good machinability for rod, bar, and section mills.
Frequently Asked Questions — Cemented Carbide Composite Rolls
What is a cemented carbide composite roll?
A cemented carbide composite roll consists of a hard tungsten carbide (WC-Co) outer shell bonded to a tough steel or cast-iron core. This composite structure combines the extreme hardness of carbide with the toughness and machinability of the core material, making it ideal for high-wear rolling mill applications.
What is the price of cemented carbide composite rolls in India?
The price of cemented carbide composite rolls in India depends on factors such as roll diameter, barrel length, carbide grade (WC content), and quantity. Kathuria Techmech offers the best competitive pricing for rolls supplied to mills across Delhi NCR, and all of India. Please contact us with your specifications for a detailed, no-obligation quote.
Which mills are cemented carbide composite rolls suitable for?
Cemented carbide composite rolls are primarily used in the finishing and pre-finishing stands of wire rod mills, bar mills, tube mills, and cold rolling mills. Their superior wear resistance and surface finish capability make them the preferred choice wherever tight dimensional tolerances and high surface quality are required.
How do carbide composite rolls compare to HSS rolls?
Cemented carbide composite rolls offer 3–5× greater wear resistance compared to HSS rolls, resulting in longer campaign life and fewer roll changes. HSS rolls, however, excel in thermal shock resistance and are preferred for high-temperature hot strip mill finishing stands. The optimal choice depends on your specific mill position, rolling speed, and material being rolled — our technical team can advise you accordingly.
Do you supply cemented carbide composite rolls to Delhi and NCR?
Yes. Kathuria Techmech Pvt. Ltd. is based in Ghaziabad (NCR) and supplies cemented carbide composite rolls to rolling mills across Delhi, Noida, Faridabad, Gurgaon, and the entire National Capital Region, as well as to steel plants across India and international markets.
Can I get custom-sized carbide composite rolls?
Absolutely. We supply custom-manufactured cemented carbide composite rolls tailored to your exact diameter, barrel length, shell thickness, and carbide grade requirements. Share your mill drawings or specifications with our engineers and we will arrange the most suitable roll for your stand.
