Material Grade: ICDP-EC

High-End Hot Strip Mill Enhanced Carbide ICDP Rolls (ICDP-EC Rolls)

Engineered to outperform standard industrial materials under heavy-reduction stress, DURON’s Enhanced Carbide ICDP Rolls (ICDP-EC Rolls) integrate niobium and vanadium micro-alloying to deliver unparalleled profile stability. This next-generation metallurgical solution prevents differential wear and extends your rolling campaigns in high-speed hot strip mills.

By Material

By Application

By Tooling

Key Mill Applications (Recommended Stands)

Late Finishing Stands of HSM

Work rolls for conventional hot strip mills demanding perfect profile retention.

Steckel Mills

Reversible high-temperature finishing stands with severe thermal duty.

High-Precision CSP Mills

Continuous compact strip production lines requiring extreme roll surface integrity.

Chemical Composition & Physical Properties

For the ultimate resistance against severe strip mill wear and roll profile degradation, DURON introduces its next-generation Enhanced Carbide ICDP metallurgical technology (internationally recognized as ICDP-EC Rolls). Developed to thoroughly outperform conventional indefinite chill materials, these high-alloy spinning castings are meticulously reinforced with active elements such as niobium (Nb) and vanadium (V).

This precise structural control yields a unique matrix of balanced primary carbides and spherical graphite flakes embedded in fine-tempered martensite. Consequently, our elite composite iron rolls eliminate uneven abrasion across the barrel and enhance thermal shock resistance under critical heating loads. Implementing this rugged solution inside your finishing train drastically extends rolling campaigns and secures an immaculate surface finish for elite flat steel production.

### Chemical Composition & Physical Properties DURON’s Enhanced Carbide ICDP Rolls (ICDP-EC Rolls) represent the pinnacle of high-alloy flat rolling technology. By combining a horizontal spin-cast outer shell with special micro-alloying carbide reinforcement, these rolls maintain a stable, uniform friction coefficient and high fire-crack resistance under catastrophic thermal shock environments. | Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) | V/W/Nb (%) | Hardness (HSD) | Tensile (N/mm²) | | :— | :— | :— | :— | :— | :— | :— | :— | :— | :— | :— | :— | | **ICDP – EC** | 3.20-3.60 | 0.70-1.50 | 1.00-1.70 | ≤ 0.08 | ≤ 0.05 | 1.30-2.00 | 4.00-4.90 | 0.20-1.00 | **1.00-3.00** | **75-85** | ≥ 410 | *Metallurgical Highlight: The inclusion of active Vanadium (V) and Niobium (Nb) elements synthesizes highly dispersed MC and M2C type carbides embedded in a fine-tempered martensitic/bainitic matrix, effectively strengthening the boundary against microscopic roll surface spalling.*

Metallurgical Excellence

Why Choose DURON ICDP-EC Rolls?

Reinforced Carbide Microstructure: Meticulously modified with strong carbide-forming alloys (Niobium and Vanadium) to form finely dispersed, ultra-hard MC-type primary carbides throughout the shell.
Controlled Spherical Graphite Morphology: The spherical graphite distribution prevents differential wear across the barrel, dramatically improving crack-propagation resistance.
Uniform Barrel Hardness: Advanced vertical or horizontal spin casting ensures a zero hardness drop-off throughout the usable wear layer, eliminating microstructural anomalies.

Manufacturing Control & Inspection

100% Non-Destructive Testing

Every roll undergoes rigorous Ultrasonic Testing (UT) at the working layer and bonding zone to eliminate internal voids and ensure structural integrity under heavy loads.

Precision CNC Machining

Roll necks and barrel profiles are machined using heavy-duty CNC equipment, strictly adhering to your drawing's dimensional and runout tolerances for perfect bearing fitment.

Metallurgical Verification

Chemical compositions are analyzed via spectrometer pre-pouring, and multi-point hardness mapping is conducted post-heat treatment to guarantee the specified hardness gradient.

Quality Traceability

All dispatched rolls are accompanied by a comprehensive inspection certificate, documenting chemical composition, hardness distribution, and UT reports.