Brief Introduction of HSS Roll
HBW HSS Roll (High-Speed Steel Roll) is a high-performance rolling mill roll made from high-speed tool steel through advanced metallurgical techniques. It is widely used in the rolling of hot strip, wire rods, and small-section steel. Compared to conventional roll materials such as alloy cast iron and alloy steel, HSS rolls offer superior wear resistance, thermal stability, and resistance to thermal fatigue, significantly improving mill productivity and rolled product quality.
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)
Material |
HBW Patented Chemical Composition (%) |
HSS Normal |
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 |
-- |
Material |
HBW Patented Chemical Composition (%) |
HSS
Enhanced |
C |
Si |
Mn |
P,S |
Cr |
Ni |
Mo |
V |
W |
Nb |
other |
1.5~2.1
|
0.2~1.0 |
0.3~1.0 |
≤0.03 |
4.0~6.0 |
0.5~1.5 |
3.0~6.0 |
3.0~5.0 |
2.5~5.0 |
≤0.5 |
≤1.0 |
Material |
HBW Patented Chemical Composition (%) |
HSS High Strength |
C |
Si |
Mn |
P,S |
Cr |
Ni |
Mo |
V |
W |
Nb |
other |
1.5~2.1 |
0.2~1.0 |
0.3~1.0 |
≤0.03 |
4.0~6.0 |
0.5~1.5 |
4.0~6.0 |
4.0~6.0 |
3.0~5.0 |
≤1.0 |
≤1.0 |
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. Advantages of HSS Rolls for Slitting Stands
• High hardness and wear resistance
• Excellent thermal fatigue resistance
• Long service life, fewer roll changes
• Enhances surface finish of rolled products
• Stable under high-speed rolling conditions
• Optimized alloy composition with precise heat treatment
4.Application:
• Used in hot rolling of bar, wire rod, and section steel
• Ideal for high-speed continuous rolling lines
• Suitable for finishing stands and pre-finishing stands
• Applied in modern steel mills and rolling workshops
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
1.Perfect Management System &10 Invention Certificates and 16 Utility Model Patents

2.Honors Awarded by Government & Our Distinguished Customers
Why Choose Us:
• Over 18 years of expertise in HSS roll manufacturing
• In-house alloy development and precision machining
• Factory-direct supply, reliable lead times
• Strict quality control with 100% traceability
• Responsive service and technical support
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