Brief Introduction of Seamless Steel Pipe HSS Roll
Our HSS (High Speed Steel) mill rolls are specially engineered for seamless steel pipe production lines, delivering superior performance in terms of wear resistance, thermal fatigue resistance, and red hardness.
Manufactured with high-alloy materials and advanced heat treatment technology, these rolls are ideal for use in piercing mills, reducing mills, and sizing mills, ensuring extended roll life and excellent surface quality of the final pipe products..
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 Normal
|
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~ 6.00 |
0.50~ 1.50 |
3.0-7.0 |
2.0-8.0 |
1.0-8.0 |
≤0.03 |
Depends oMaterialn HSS Grade |
HSS Enhanced
Material |
Chemical composition control requirements (%) |
HSS Enhanced |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
W |
Ni |
Nb |
Other |
1.5-2.1 |
0.2-1.0 |
0.3-1.0 |
≤0.03 |
≤0.03 |
4.0-6.0 |
3.0-6.0 |
3.0-5.0 |
2.5-5.0 |
0.5-1.5 |
≤0.5 |
≤1.0 |
HSS High Strength
Material |
Chemical composition control requirements (%) |
HSS Enhanced |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
W |
Ni |
Nb |
Other |
1.5-2.1 |
0.2-1.0 |
0.3-1.0 |
≤0.03 |
≤0.03 |
4.0-6.0 |
4.0-6.0 |
4.0-6.0 |
3.0-5.0 |
0.5-1.5 |
≤1.0 |
≤1.0 |
1. Material Characteristics
Angle steel high-speed steel rolls are made from high-speed steel containing high-alloy elements such as tungsten (W), molybdenum (Mo), vanadium (V), and chromium (Cr). Their characteristics include:
• High Hardness: Surface hardness can reach HSD82-89 or higher after specialized heat treatment, meeting the demands of high-strength rolling.
• Excellent Wear Resistance: Significantly extends roll service life and reduces replacement frequency.
• High Red Hardness: Maintains stable performance even under high-temperature conditions.
• Thermal Fatigue Resistance: Withstands thermal cycling, preventing thermal cracks and surface spalling.
2. Performance Features
• Wear Resistance: Suitable for continuous production under high-load conditions, extending roll lifespan.
• Thermal Stability: Maintains dimensional accuracy and shape stability in the high-temperature environment of angle steel rolling.
• Impact Resistance: Handles the alternating loads and impacts during angle steel rolling.
• High Precision Rolling: Ensures dimensional consistency and accurate cross-sectional shapes of angle steel.
3. Applications
piercing mills, reducing mills, and sizing mills, ensuring extended roll life and excellent surface quality of the final pipe products
4. Technical Advantages
• Increased Production Efficiency: High wear resistance and hardness reduce downtime, enhancing continuous production efficiency.
• Lower Production Costs: Longer service life reduces roll replacement frequency and maintenance costs.
• Improved Product Quality: Ensures smooth surface finish, precise dimensions, and complete cross-sectional shapes of angle steel products.
Detailed Photos of HSS Roll
Anhui Huanbowan High Speed Steel Mill Roll Co., LTD
Anhui Huanbowan High Speed Steel Mill Roll Co., LTD
Anhui Huanbowan High Speed Steel Mill Roll Co., Ltd. was established in 2007 (formerly Beijing Huanbowan), and is a professional manufacturer specializing in high-performance high-speed steel (HSS) mill rolls and roll rings.
In 2014, the company relocated to Tongling City, known as the "Bronze Capital of China," and expanded its production capacity to 15,000 tons per year. Our factory covers 100 acres and is located in the Tongling Economic and Technological Development Zone, with convenient access to high-speed railways and expressways.
We have built long-term R&D partnerships with leading institutions such as Beijing University of Technology, USTB, and the Central Iron & Steel Research Institute. Our patented HSS rolls have been recognized as High and New-Technology Products by Beijing Municipality.
Why Choose Us:
• Over 18+ years of experience in HSS roll manufacturing
• National patents & independent R&D
• Significant improvement in wear resistance compared to traditional rolls
• Stable rolling performance, better surface quality, reduced cost
• Widely used in 200+ domestic steel mills, including Baowu, Yonggang, Jianlong, Jingye, and Zenith
• Expanding exports to global markets
We are committed to becoming a reliable partner for steel rolling enterprises worldwide.
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
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
Interested in product, technical sheets, or a custom quotation?
Let's talk! Our team is here to support your seamless pipe production needs.