Tungsten Carbide Rings For Steel Hot Nearly Every Rolling
- Excellent wear resistance
- Free of micro porosities
- Excellent high temperature corrosion resistance
Characteristics of the carbide roll ring
High hardness and good wear resistance: Hardness at room
temperature can reach HRA78-89, good red hardness under high
temperature, 600C over high-speed steel, 1000C over the room
temperature of carbon steel.
High mechanical strength: the compressive strength of up to
6000MN/m2, 900C, the bending strength can still above 1000MN/m2
High modulus of elasticity: good rigidity at room temperature, no
significant plastic deformation, Young’s modulus is 2-3 times that
of steel.
Corrosion resistance and good oxidation resistance: acid alkali,
600-800C without significant oxidation.
The linear expansion coefficient is small: in the range of 20 to
400C for steel 0.35 to 0.65.
Conductivity: Similar with iron and ferroalloy.
The thermal conductivity of steel 1/2, copper 1/3
High density: carbide roll ring density is much larger than the
steel used in rolling the field of carbide roll ring binder content
of 6 percent to 30 percent, the density is between 12.6-14.8 g/cm3a
Today's hot rolling processes require optimum and reliable products
and components throughout the mill train.
KARK and one of the world's leading producers of tungsten carbide
materials, element six, have formed a strong and reliable
partnership for the manufacture and distribution of superior
quality tungsten carbide roll rings.
We offer you a wide variety of standard grades to satisfy almost
every application request. Special non-standard grades are also
available, as well as a sophisticated R&D-department, that is
continously working on developing new grades.
Our tungsten carbide roll rings are available in standard block
sizes and up to a diameter of 480mm (18.8''), they come either
ground but without grooves or ready-to-use, with grooves.
high-performance rolls for hot rolling mills
made exclusively from virgin materials
wide variety of standard grades
state-of-the-art materials from element six, one of the leading
manufacturers worldwide
available for nearly every rolling application
excellent surface finish of the rolled product
machining service and training available
Tungsten Carbide Roll Rings
We provide you the high quality Tungsten Carbide roll rings and
composite rolls for rolling wire rods, rebars and merchant bars.
The superior wear resistance characteristics of TC roll rings
provide you the highest pass performance in addition to the very
good surface finish.
TC rings are the standard application in high speed wire rod
finishing block and is getting more popular in some other hot and
cold forming applications.
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| Common Alloy Grades, Ghysical Mechanical Properties And Recommended
Application |
| Grade | WC% | Co/Ni % | Physical and mechanical properties | Grain size (μm) | Recommended application |
| Density (g/cm3) | TRS (N/mm2) | Hardness (HRA) |
| ZG01 | 100 | 0 | 15.3-15.5 | 1200 | 95.5 | 0.3 | Ultra-high hardness, high wear resistance, anti-corrosion, with
certain anti-destructive ability |
| ZG04X | 96 | 4 | 15.0-15.2 | 1600 | 92.8 | 0.8-1.0 | Suitable for drawing die, non-ferrous metal wire drawing and
wear-resistant parts |
| ZG06 | 94 | 6 | 14.8-15.1 | 2500 | 90.0 | 1.2 | Good abrasion resistance, good compression resistance, suitable for
wear-resistant parts that resist abrasion and high pressure. |
| ZG06X | 94 | 6 | 14.8-15.1 | 2400 | 91.5 | 1.0 | Superio wear resistance,good comprehensive properties,suitable for
making non-standard structure components with higher wear
resistance. |
| ZG06A | 94 | 6 | 14.8-15.1 | 2150 | 92.5 | 0.6-0.8 |
| ZG08 | 92 | 8 | 14.6-14.9 | 2700 | 89.0 | 1.2-1.6 | Good general performance, used for general wear parts, molds,
general tools, etc. |
| ZG10.2 | 90 | 10 | 14.3-14.6 | 3800 | 91.7 | 0.7 | Good general performance, suitable for casing and oil nozzle
products |
| ZG11 | 89 | 11 | 14.3-14.7 | 2800 | 88.5 | 1.2-1.6 | Anti-wear, anti-erosion, good comprehensive mechanical strength,
suitable for wear-resistant parts in the petroleum, chemical and
mechanical industries. |
| ZG12X | 88 | 12 | 14.2-14.5 | 3000 | 89.5 | 1.0-1.2 | Anti-erosion, good comprehensive mechanical strength, suitable for
impact-resistant wear-resistant parts, molds, and roller rings. |
| ZG15 | 85 | 15 | 13.8-14.2 | 3000 | 86.5 | 1.2-1.6 |
| ZG15X | 85 | 15 | 13.8-14.2 | 4500 | 89.0 | 0.7 | Excellent wear resistance and toughness,it is suitable for making
integral stamping dies, anti-vibration toolholders, etc. |
| ZG20 | 80 | 20 | 13.4-13.8 | 3100 | 85.0 | 1.0 | Excellent wear resistance and toughness |
| ZN06 | 94 | 6 | 14.5-14.9 | 2000 | 90.0 | 1.2 | Non-magnetic alloy, suitable for sealing ring, non-magnetic
wear-resistant parts and corrosion-resistant parts. |
| ZN09 | 91 | 9 | 14.3-14.6 | 2300 | 89.0 | 1.2-1.6 |
| ZN11 | 89 | 11 | 14.0-14.3 | 2600 | 88.0 | 1.2 |
