The world No. 1 in crude steel production steel plant, over 70% of the HSS for bar and wire are from us.

We can provide special services and differentiated products according to the different working conditions of the rolling mill.

LMM PRODUCT

Service Include

Composite cemented carhide roll rings

Brand name: LMM GROUP
Packing Details : Wooden box with fumigation or Wooden Fram
Delivery Details: 30~60days or Based on the quantity
Shipping: Sea freight、Land freight、Air freight

LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time

Manufacture drawing

Process schedule with ETD date

QC checking of each process

Checking report

Photos &videos of each process

ISO 9001 certificate

Warranty Time

The third party Checking

Cemented carbide roll rings (also known as tungsten carbide roll ring) possesses good thermal conduction property. Compared with pther materials, it is much better in terms of heat-resistance, wear-resistance and strength. What’s more, it shardness reduces a little under the condtion of high temperature. So, the cemented carbide roll rings is invented with the ap-pearance of high speed wire rod mill. With the development and improvement

Application: it is widely applied in the production of high speed wire, bar and deformed steel bar.

tc-ring

Composite cemented carhide rollrings

Table of grades and properties of carbide roll rings and related data

Grade

Wc(%)

Co(%)

Ni(%)

Cr(%)

Density g/cm³ ±0.15

Hardness≥HRA ±0. 5

Bending strength≥N/mm²

LMM08R

92

8

14.7 

88.0

2800

LMM10R

90

10

14.5 

87.5

2750

LMM12R

88

12

14.2 

86.0

2700

LMM15R

85

15

14.1 

85.0

2650

LMM18R

82

18

13.7 

83.5

2650

LMM20R

80

20

13.5 

83.0

2600

LMM25R

75

25

13.1 

82.0

2500

LMM30R

70

30

12.7 

80.0

2400

LMM32R

68

32

12.5 

79.0

2400

LMM06H

94

6

0

0

14.8 

89.0

2580

LMM08H

92

8

0

0

14.7 

88.5

2600

LMM10H

90

10

0

0

14.5 

88.0

2700

LMM15H

85

15

0

0

14.1 

85.0

2700

LMM20H

80

20

0

0

13.5 

83.0

2700

LMM25H

75

25

0

0

13.1 

81.5

2550

LMM30H

70

30

0

0

12.7 

80.0

2500

LMM32H

68

32

0

0

12.5

78.5

2400

YGR20

90

10

14.4 

87.5

2650

YGR25

88

12

14.3 

86.5

2600

YGR30

85

15

14.2 

85.0

2550

YGR40

82

18

13.7 

83.5

2500

YGR45

80

20

13.5 

82.5

2400

YGR55

75

25

13.1 

80.5

2450

YGR60

70

30

12.8 

79.0

2250

YGH40T

85

15

14.1 

84.5

2700

YGH45T

80

20

13.5 

83.0

2600

Production equipment

Whole process supervision of the quality of raw material

LMM tries its utmost to meet the demand of customers. Our professional R&D department and production line will provide the direct and effective quality and service for you.

With over twenty years’ experience on the production of cemented carbide roll rings, LMM has established an inte-grated system including R&D and extraction of powder and production and marketing of alloy . Through our professional service, you can make the correct choice for the material to match your product.

Cemented carbide roll rings of production process

FAQs about tungsten carbide rolls

Tungsten carbide rolls can be used in the intermediate finishing sections of rolling mills.

LMM can produce tungsten carbide rolls with outer diameters of up to 550 millimeters.

To convert from cast iron or steel rolls to tungsten carbide rolls, LMM carbide rolls product speciailists will partner with rolling mills to revise roll cooling, machining, and handling capabilities. Most rolling mills can easily adapt from cast iron to tungsten carbide.

LMM tungsten carbide rolls have a longer lifespan of up to 20 times longer than that of cast iron rolls due to their higher wear resistance. This results in reduced stoppage time for the rolling mill along with higher productivity and lower operational costs

The minimum rolling speed tungsten carbide rolls can be used at is one meter-per-second (1 m/s).

Proper cooling is crucial to ensure optimal performance of carbide rolls. The minimum recommended pressure is 4-to-6 bar and 250-to-300 liters per minute per passform.

CERTIFICATION

The company strictly according to modern enterprise management requirements set up a perfectquality assurance system, and passed the ISO9001:2008 quality management system certification,ISO14001:2004 environmental management system certification, OHSAS18001:1999 occupationalhealth and safety management system certification.

Service Display

Pre-sales:
Recommend suitable products according to the actual working conditions and needs of customers.It can also bedeveloped and designed according to needs, and customized services can be provided. During the epidemic, provide remote detection technical support.

Strict quality control:
From raw materials, to the production process and befor eleaving the factory, all performance indicators arestrictly tested, and the professional QC team controls according to the process.

After-sales service:
Quality assurance and Resolution of any issues that arise 

What do I need for offering a quote ?

Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment and other technical requirement etc.) ,quantity, application or samples. Then we will quote the best price within 24h.

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We would be happy to help and advise if you have any questions or inquiries.