| Customization: | Available |
|---|---|
| After-sales Service: | 24 Hours |
| Warranty: | 1-3 Years |
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HiCr Steel, HSS and Enhanced ICDP are popular materials used for Hot Strip Rolling Mill work rolls.
HiCr Steel Rolls
HiCr Steel is characterized by excellent fire crack resistance and very good oxidation behaviour at rolling temperature. Very good wear resistance and constant material properties throughout the shell layer.
HiCr Steel is manufactured by horizontal spin casting. No retained Austenite and the right structure and properties are obtained through the chemical composition, high temperature quenching and tempering cycles.
Core material:
Application:
| MATERIAL | CHEMISTRY |
BARREL HARDNESS (HSC) |
||||||
| C | Si | Mn | Cr | Ni | Mo | V | ||
| HiCr Steel | 0.90-2.00 | 0.40-1.40 | 0.40-1.40 | 9.0-15.0 | 0.60-1.60 | 1.00-2.00 | ≤1.00 | 65-80 |
| TYPICAL PHYSICAL PROPERTIES | |||
| Neck Hardness (HSC) | Tensile Strength (N/mm2) | Unevenness of Barrel Surface Hardness (HSC) | Difference of Shell Thickness |
| 35-45 |
shell ≥750
core & necks ≥400 |
<3 | <10 |
Enhanced ICDP Rolls
The enhanced ICDP is developed based on the classic Indefinite Chill Double Poured Cast Iron.The microstructure consists of a bainitic / martensistic matrix with Fe3C and MC carbides homogeneously distributed and a certain amount of free graphite fine and also well distributed in the matrix.The rolls are double tempered to avoid retained Austenite and to obtain the right hardness level and the optimum residual stress level.
Core material:
Application:
| MATERIAL | CHEMISTRY | BARREL HARDNESS (HSC) |
||||||
| C | Si | Mn | Cr | Ni | Mo | V+W+Ti+Nb | ||
| EN-ICDP | 2.90-3.40 | 0.60-1.60 | 0.50-1.50 | 1.20-2.0 | 3.50-5.00 | 0.20-1.00 | ≤2.5 | 70 - 82 |
| TYPICAL PHYSICAL PROPERTIES | |||
| Neck Hardness (HSC) | Tensile Strength (N/mm2) | Unevenness of Barrel Surface Hardness (HSC) | Difference of Shell Thickness |
| 35-45 | ≥400 | <3 | <10 |
HSS Rolls
The microstructure consists of tempered bainitic / martensitic matrix with primary and secondary carbides.Primary carbides MC, M7C3, M6C and M2C are originated during the eutectic solidification. Secondary carbides are precipitated during the High Temperature quench and tempering. The rolls are cast with the right structure to undergo the High Temperature quenching to promote the right precipitation of secondary carbides and optimum material properties. Excellent wear resistance and fire crack resistance and very good oxidation behaviour at rolling temperatures under the adequate rolling conditions are the main features of this grade
Core material: Nodular Iron
Application:
Work Rolls for early finishing stands (F1-F4) of HSM and early stands of CSP Mill.
Work Rolls for finishing stands of bar mills.
| MATERIAL | CHEMISTRY | BARREL HARDNESS (HSC) |
||||||||
| C | Si | Mn | Cr | Ni | Mo | V | W | |||
| HSS | 1.50-2.20 | 0.30-1.00 | 0.40-1.20 | 3.00- 8.00 |
0.50-1.50 | 2.00-8.00 | 2.00-9.00 | 0.00-8.00 | ||
| 75-85 | ||||||||||
| TYPICAL PHYSICAL PROPERTIES | |||
| Neck Hardness (HSC) | Tensile Strength (N/mm2) | Unevenness of Barrel Surface Hardness (HSC) | Difference of Shell Thickness |
| 30-45 | shell ≥800 core & neck ≥400 |
<3 | <10 |
--MELTING
TSR Rolls factory is equipped with a variety of smelting equipments, such as EBT electric arc furnace, LF double-bit refining furnace, VD-VOD vacuum furnaces and etc. Advanced smelting equipment supplemented by temperature control, component analysis and other testing equipment ensure that each furnace is in line with the requirements of molten steel.
--CASTING
TSR Rolls applies advanced roll casting technology to first-class foundry equipment. Our main production processes use computers to control and select parameters automatically. So we can ensure that each batch of rolls has consistent production process control. Every step is traceable by our Electronic recording system. Whether it is static casting or centrifugal casting, our products have excellent performance.
Plus a complete set of chills, chillers and moulding tackle to cast all kind of rolls including big section rolls with the barrel shaped with grooves and collars in as-cast condition.
--HEAT TREATMENT
During the manufacturing process of rolls, many materials need to pass one or more heat treatment to further achieve the most appropriate mechanical properties and good microstructure. The resistance furnace of TS ROLL can achieve multi-point precise temperature control to ensure uniformity of the furnace temperature. Between different furnaces, we use a unified computer control to achieve the furnace heating and cooling consistency in order to ensure the rolls from different furnaces with same microstructure and performance.
TSR Roll has a machining shop of more than 15.000 square meters, including the lathe, boring machine, grinding machine and other modern processing equipment for rolls. Thanks for the first-class operator working on high-precision CNC equipment, it is easy to produce the rolls with various kinds of grooves and precise tolerances.
--QUALITY ASSURANCE
The high performance requirements of today's mills require reliable rolls capable of remaining in the production cycle longer than ever while still assuring a high quality of the rolled products. TS Rolls has built a consistent quality control throughout the manufacturing process. Our aim is supplying the customer with reliable rolls capable to perform better, contributing to customer benefit, cost reduction and satisfaction.
Since the beginning TS Roll obtained the ISO 9001:2008 Quality Management System Certification. Based on our consistent adherence to the quality management, TS Roll products quality has been universally acclaimed by dozens of customers worldwide.
At TSR Roll, we are focused on the roll service. Our Technical Service will help you to solve questions about roll maintenance, roll wear, roll damages, roll configuration, shape of the roll, surface hardness, roughness, temperature distribution and damage inspection among others. The aim is reducing the Total Cost of Operation for the customer by supplying reliable rolls and advanced roll service always with strict adherence to the delivery time.
Distribution of Customers & Service Center
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