Brief Introduction of HSS Slitting Roll
HBW Slitting High-Speed Steel is a specialized high-speed steel material designed by our company for use in the slitting rolling process in steel production. It is widely used in the metallurgical industry for manufacturing split rolling tools, such as split rolls .
Its core features include high hardness, excellent wear resistance, and the ability to withstand the high-temperature and high-pressure conditions of slit rolling.
Physical Parameter
| |
Normal |
Enhanced |
High Strength |
Slitting |
Dogbone |
| Roll Specification |
Ø280 - Ø850 |
| Density |
7.6 g/cm³ |
7.8 g/cm³ |
8 g/cm³ |
7.6 g/cm³ |
7.6 g/cm³ |
| Casting |
Centrifugal Casting |
| Heat Treatment |
HBW Patented |
| Hardness |
General: 82-89HSD
Different range based on stands73-77HSD |
73-77HSD |
79-83HSD |
| Hardness Drop |
≤3HSD |
| Rolling Temperature |
780ºC-1100ºC |
| Pass Life |
4-5 times than CI Rolls |
1.3 tims than
HSS Normal |
1.5 tims than HSS Normal |
24-32 hours Continue Rolling (2-3 times than High-boron Rolls) |
| Dressing |
1.0-1.5mm |
| Use Periods |
8-10 Cycles |
| Application |
Intermediate and Finishing stands in bar mill Fours stands before pre-finishing stands in wire mill
Hot strip and plate steel working rolls Section steel universal mill |
Slitting stand in bar mill |
Dogbone stand in bar mill |
Physical Properties
| Properties |
Barrel |
Core |
| Tensile Strength(N/mm²) |
≥700MPa |
≥450MPa |
Compressive Strength |
≥2500MPa |
|
Chemical Analysis (Proportion differert based on HSS Grade)
HSS Slitting
| |
HBW Patented Chemical Composition (%) |
| HSS Slitting |
C |
Si |
Mn |
Cr |
Ni |
Mo |
V |
W |
P & S |
Nb |
Co |
Others |
| 1.5-2.10 |
0.2-1.0 |
0.30~1.0 |
3.00~ 5.00 |
0.50~ 1.0 |
2.5-4.5 |
2.0-4.0 |
1.0-3.0 |
≤0.03 |
-- |
1. Material Characteristics
Slitting high-speed steel rolls are made from HBW patented high-speed steel containing high-alloy elements such as tungsten (W), molybdenum (Mo), vanadium (V), and chromium (Cr). Key characteristics include:
• High Hardness and Red Hardness: Maintains surface hardness of HSD73-78 or above even under high-temperature conditions.
• Excellent Wear Resistance: The hard particles and refined grain structure of high-speed steel significantly enhance wear resistance.
• Thermal Fatigue Resistance: Adapts to high-temperature and thermal cycling environments, reducing the risk of surface cracking and spalling.
• Good Toughness: Sufficient strength and toughness to withstand high loads and impacts during rolling.
2. Key Performance Features
• Wear Resistance: Performs well under high-speed and heavy-load conditions, ensuring a long service life.
• Thermal Stability: Maintains dimensional stability and efficient performance even at temperatures of 900-1050°C.
• High Precision: High machining accuracy ensures consistent dimensions during multi-line slitting rolling.
• Low Replacement Frequency: Reduces downtime and increases production efficiency.
3. Applications
Slitting high-speed steel rolls are widely used in the following scenarios:
• Bar Split Rolling: Used for multi-line rolling of high-strength bars to enhance production efficiency.
• Wire Rod Split Rolling: Ensures consistent product surface quality and dimensional accuracy in high-speed wire rod production.
• Special Steel Rolling: Suitable for processing challenging materials like high-alloy steel and stainless steel.
4. Technical Advantages
• Increased Productivity: Multi-line slitting rolling technology enables simultaneous rolling of multiple bars or wires, significantly boosting output.
• Reduced Production Costs: Long roll life minimizes frequent replacements, saving on costs and downtime.
• Stable Product Quality: The high precision and wear resistance of split high-speed steel rolls ensure uniformity and surface smoothness of rolled products.
5. Future Development
As the steel industry increasingly demands higher efficiency and product quality, slitting high-speed steel rolls will continue to evolve. Advancements in material formulation, manufacturing processes, and surface treatment technologies will further enhance their performance and lifespan to meet the needs of high-end rolling applications.
In summary, slitting high-speed steel rolls, with their outstanding durability and efficiency, have become an indispensable component of modern rolling technology. They significantly improve production efficiency, reduce operating costs, and meet the requirements of high-end steel rolling applications.
Detailed Photos of HSS Roll
Advantage of High-Speed Steel Slitting Rolls
Anhui Huanbowan High Speed Steel Mill Roll Co., LTD
Anhui Huanbowan High Speed Steel Mill Roll Co., Ltd. is China's earliest and largest enterprise specializing in the production of high-speed steel (HSS) rolls and rings. Founded in 2007, we cover an area of approximately 70,000 square meters and has more than 300 employees, including more than 30 experienced intermediate and senior technical experts.
Through the adoption of cutting-edge manufacturing process, including the precision of centrifugal casting and advanced technology of heat treatment, HBW consistently delivers products of unparalleled quality. Our HSS series products are renowned for their outstanding attributes, offering remarkable wear resistance, enduring thermal fatigue, and a prolonged service lifespan that sets them apart in steel industry.
Our high-performance rolls find extensive application across hot rolling production lines, especially in the crucial finishing stands. They are indispensable in fabricating an array of materials, from rebar and structural steel to seamless steel, strip steel, high-strength alloys, and even stainless and special steels. The versatility and reliability of HBW rolls make them an ideal choice for steel mills aiming to achieve excellence in material production.
At the core of HBW's philosophy is a steadfast commitment to innovation and quality. We promise to deliver rolls that not only possess uniform hardness and a pristine surface finish but also boast a long service life. By choosing HBW, customers are empowered to elevate their production efficiency and significantly cut down on operational costs.
The prestigious HBW products have been the choice of leading steel manufacturers across the globe. Their consistent performance and unparalleled reliability have earned them a coveted reputation, both domestically and internationally, as the benchmark of excellence in the steel industry
1. Two Casting Lines
2. Two Heat Treatment Lines
3. Two HSS Roll & Two HSS Ring Processing Lines
4. 1 Professional Physical and Chemical Center
Professional physical and chemical center
HBW Physical and Chemical Testing Center is a key technical support department of the company, primarily responsible for testing and analyzing the physical properties and chemical composition of materials. It provides scientific support for product quality assurance, process optimization, and research and development. The center is equipped with advanced testing equipment and a professional technical team, covering quality control throughout the entire production process, from raw materials to finished products.
Functions of the Center
1. Physical Property Testing
2. Chemical Composition Analysis
3. Failure Analysis
4. Process Development Support
5. Quality Supervision and
• Oversees internal product quality control and offers testing services for external clients, assisting in obtaining relevant product certifications.
Technical Strength
The center is equipped with state-of-the-art testing instruments, including:
• Spectrometers
• Scanning Electron Microscopes (SEM)
• Universal Testing Machines
• Impact Testing Machines
• Hardness Testers, and more.
Additionally, the center boasts a highly experienced and certified technical team, with several engineers holding national-level testing qualifications to ensure the accuracy and authority of test results.
1.Perfect Management System &10 Invention Certificates and 16 Utility Model Patents
2.Honors Awarded by Government & Our Distinguished Customers
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