HSS ROLLS FOR
BAR MILLS

High-speed steel rolls are manufactured by centrifugal casting, the core material as spheroidal graphite cast iron. By adding vanadium, tungsten, niobium and other alloying elements and special heat treatment, the distribution of this material becomes martensite with good uniformity to ensure high hardness and hardness uniformity of Shell. High-speed steel materials deliver high hardness and wear resistance at high temperature. It can be used for finishing stand to increase the operating time and improve the quality of the surface of rolling material.

Application

Slitting stand, dog bone stand, pre-finishing stands and finishing stands of rebar mills.
Slitting stand, dog bone stand, pre-finishing stands and finishing stands of bar mills.
Pre-finishing stands and finishing stands of angle mills.
High speed wire pre-finishing stands

Materal Grades

CLASSFICATION	CHEMISTRY
CLASSFICATION	C	Si	Mn	P	S	Cr	Ni	Mo	V	W
High Speed Steel	1.50-2.20	0.30-1.00	0.40-1.20	≤0.030	≤0.025	3.00-8.00	0.00-1.50	2.00-8.00	2.00-9.00	0.00-8.00

TYPICAL PHYSICAL PROPERTIES

GRADE

Neck Hardness

(HSC)

Tensile Strength
(N/mm2)

Unevenness of

Barrel Surface Hardness

(HSC)

HSS

30-45

≥350

＜5

HARDNESS
DISTRIBUTION

Microstructure
100x

Products Categories

Send us a message

Send us your ideas and we will get in touch with you within 24H!

Features

of High Speed Steel Rolls

Superior Wear Resistance & Longer Campaign Life
HSS rolls contain high alloy elements such as V, W, Cr, Mo and Nb, forming mainly MC and M₂C carbides. Compared with ductile iron and high Ni-Cr rolls, HSS rolls achieve higher tonnage per groove, reducing roll change frequency, roll consumption and overall production cost.
Excellent High-Temperature Performance
HSS rolls exhibit outstanding thermal stability, maintaining high surface hardness and wear resistance at rolling temperatures.
Uniform Hardness Distribution
With excellent hardenability, hardness remains nearly constant from the roll surface to the working layer, ensuring consistent wear resistance throughout the roll life.
Stable Groove Geometry & Dimensional Accuracy
High thermal expansion coefficient and good thermal conductivity help compensate groove wear during rolling. Groove size remains stable for a longer time, improving pass consistency and facilitating negative tolerance control, especially for bars and rebars.
High Neck Strength
Centrifugally cast HSS rolls with alloy ductile iron cores provide high roll neck strength and reliable load-bearing capacity.

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 ROLLS

High quality Mill Rolls Supplier of China

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.

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.

Service and Support

We believe that genuine cooperation goes far beyond product delivery. Our professional team is always ready to provide full-cycle, dedicated support, characterized by rapid response, solid technical expertise, and a meticulous service mindset. Meanwhile, we conduct regular visits to customers worldwide to offer on-site technical support.

TSR listens carefully to every requirement and is fully committed to resolving every challenge, ensuring that every customer enjoys a reliable, worry-free, and trustworthy partnership.