Materal Grades and applications of work rolls and intermediate rolls
Material | Tensile Property Mpa | Barrel Hardness HSD | Working Layer Composition | Hardness Depth mm | Application |
3%Cr Series | ≥850 | 88-105 | martensite+M3C (few M7C) and Ar | 20-28 | Single stand mill, skin pass mill, tandem mill |
5%Cr Series | ≥950 | 90-105 | martensite+M7C and few Ar | 30-50 | Single stand mill, skin pass mill, tandem mill |
Materal Grades and applications of backup rolls
Material | Tensile Property Mpa | Barrel Hardness HSD | Working Layer Composition | Hardness Depth mm | Application |
3%Cr Series | ≥880 | 50-65 | Martensite (bainite) + Carbide | 40-60 | Single stand mill, Cold & Hot rolling tandem mill |
5%Cr Series | ≥950 | 55-80 | Martensite (bainite) + Carbide | 50-100 | Single stand mill, Cold & Hot rolling tandem mill |
Materal Grades and applications of Sendzimir Rolls
Material | Application | Roll Type | Hardness |
Cr12MoVCo | Sendzimir | Work Roll | 60-64 HRC |
5H12 | Sendzimir | First IMR | 50-62 HRC |
5H12 | Sendzimir | Second IMR | 50-62 HRC |
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Features
of forged steel Rolls
Higher Cleanliness and Structural Uniformity
The ESR process effectively removes non-metallic inclusions, significantly reduces harmful elements such as oxygen and sulfur, and improves microstructural uniformity by minimizing chemical and macro-segregation.Excellent Fatigue Resistance
A high forging ratio ensures a dense and refined microstructure, substantially enhancing resistance to both mechanical and thermal fatigue.Uniform Hardness Distribution
The hardness variation along the roll barrel can be controlled within 10 LD, supporting stable rolling accuracy and extended roll service life.High Wear Resistance
Through specialized alloy design and optimized heat treatment, the working roll hardness can reach up to 105 HS, meeting the demanding wear resistance requirements of aluminum foil and similar products.
Packing Details
Seaworthy crates, wooden boxes or steel pallets
Production time
4-6months
Shipping
Sea freight, Land freight and Air freight
Warranty Time
Whole lifetime warrantee
TSR is a professional supplier of mill rolls and related technical services. Backed by an expert team of PhDs specializing in materials science and metallurgy, TSR is committed to becoming a world-class provider of roll technology and services.
With over 20 years of dedicated experience, TSR has been supplying high-quality mill rolls and reliable technical support to steel producers worldwide. Our products are successfully applied on more than 100 rolling mill lines across 30+ countries and regions, including France, Spain, South Korea, Vietnam, India, Brazil, and Mexico.
PRODUCTION CAPACITY
At TSR, we believe that continuous improvement leads to perfection. We consistently upgrade our advanced CNC equipment to ensure excellence throughout the production process.
MELTING
EBT Arc furnace: 55T
LF Refining furnace: 55T
VD+VOD: 55T
IM frequency furnace (8 sets): 20T
CASTING
Horizontal Spin Casters
Ø 1,600 mm x 4,500 mm B.L.
Ø 1,400 mm x 3,000 mm B.L.
Ø 800 mm x 2,600 mm B.L.
HEAT TREATMENT
Electrical furnaces
18 sets – bogie type
7 sets – low-temperature
11 sets – high temperature
Differential Heat Treatment
Furnaceφ1600 mm x 2800 mm B.L.
Spray quenching machine
Max φ1800mm
MACHING
CNC Lathe: 32T
CNC Grinding machine50T
Turing and Boring machine: 63T
Boring machine
QUALITY CONTROL
The high-performance demands of today’s mills require reliable rolls that can remain in the production cycle longer than ever, while ensuring high-quality rolled products. TSR has built a consistent quality control system throughout the entire manufacturing process. Our aim is to supply customers with reliable rolls that deliver better performance, contributing to customer benefit, cost reduction and satisfaction.
Dimentional
Inspection
Microstructure
Inspection
Ultrasonic
Inspection
Lismar
Environmental friendly package
Low-carbon operation of each equipment, recycling of every piece of metal, and environmental optimization of each process — these are TSR’s solemn commitments to the Earth. Even the smallest details of our packaging reflect TSR’s responsible attitude toward environmental protection.
- Seaworthy steel pallets
- 100% recyclable materials
- Unpainted steel pallets
- Optimized packaging design to minimize material consumption
Service and Support
Trust and Worth
Our Clients
