Add value to your pumps and drilling devices and complete product range.

Wear resistance, toughness, corrosion resistance, and resistance to thermal shock are the key material properties required for long-lasting, all-perfect pump function.

The unique combination of all these material characteristics has made Cemented Carbide the most widely used material in carbide tools as pump seals and bearing in the sewage, mining and process sectors. Moreover, there is further potential to tailor Cemented Carbide for a vast range of environmental applications.

Sandvik grades offer a complete set of properties

■Excellent hardness / toughness compromise guarantees outstanding wear, erosion and shock resistance
■Robust surface
■Low friction coefficient and high mechanical strength
■High thermal conductivity and superior thermal resistance
■Resistant to handling and easy to assemble
■Support brazing, mechanical assembling, shrink fitting, press fitting and gluing

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Combine excellent pass form wear resistance with high strength and toughness in the roll body.

Carbide tools and carbide components optimizes the hot rolling mills. The cast-in-carbide (CIC) concept takes this material a step further, as demonstrated in hot rolling mills all over the world. The CIC technology offers new opportunities for rolling mill managers to improve product quality, reduce down-time and increase productivity. Cemented Carbide manufacture is a highly specialized area, involving many different metallurgical, chemical and mechanical processes. The main stages from powder to finished roll blank are pressing, shaping and sintering. A pressing capacity of up to 1,200 tons places our powder pressing facilities in a class of their own. In the direct sintering process, the shaped blanks are heat-treated to a well-defined temperature and time exposure, depending on the particular carbide grade.

Carbide rolls have reached their correct hardness after the sintering process is complete. This hardness makes the rolls very difficult to machine. Because of this difficulty, it is important that we engineer each product to be as close as possible to their final dimension during the manufacture of the blanks. Grinding is normally utilized for machining the final roll shape. Grades with 25 and 30% binder can also be machined by turning.

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Adapted grades offering to meet the performance and production techniques adopted by the customers

Metal Cutting
Cemented Carbide and Cermet grades provide the toolmaker with a productivity solution for different applications and cutting conditions, extending tool life and ease of tool fabrication.There are grades suitable for example for non-ferrous cutting applications, where the saw blade cuts through materials as UPVC and aluminum, as for interrupted cutting applications.

Wood Cutting
Cemented Carbide and Cermet grades provide the toolmaker with improved edge quality without reduction in brazing and grinding characteristics.

A grade offering for Wood Cutting has been developed by extensive research and development into the cutting characteristics needed for circular saws. Through the introduction of DC (anti- corrosive) and DH (next generation) grades we provide materials that give optimum performance for wood cutting tools.

In today's competitive Oil & Gas drilling environment, the pursuit of faster, economical and superior wells has conjured a host of technological advances.

However, in the end, it all comes down to the drilling bit. Cemented Carbide is an ideal material for drilling inserts and carbide drill bits due to its high hardness, compressive strength and thermal conductivity. Research and Development within Sandvik Hard Materials has taken these properties and used innovative techniques to improve the toughness and impact resistance, while reducing the risk of thermal effects of the carbide drill bits during drilling.

The variety of material that Sandvik can supply provides coverage for a variety of application needs. In soft rock/heat generation formations, engineers typically select grades that are extra coarse with high binder content. These characteristics result in high fracture toughness and prolonged carbide drill bit life. Medium coarse grades with low binder content are generally used in drilling hard formations. This results in high hardness (better abrasion resistance), but low fracture toughness, ultimately having a higher penetration rate but increased likelihood for fracture.

Sandvik manufactures a large variety of inserts and carbide drill bits used in rotary & percussion rockbits for Oil & Gas and mining industries. Extreme drilling conditions, whether rotary, percussion or downhole, require unique solutions. Sandvik has the technology to supply the customers with inserts and carbide drill bits that perform every time.

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Material selection, be it different steel and/or carbide grades, plays an important role on tool life. Choosing the correct tool materials for the application, you can optimize performance and life, thus lowering your tooling cost per can. When creating a tooling solution for 2 and 3 piece cans and aerosols, tooling specifications need to be clearly defined. Can manufacturing is a very sophisticated process, consisting of several different components that work together to keep the production line running.

The malfunction of even one of these components will result in the stoppage of production. The unique composition of Cemented Carbide provides stability and high productivity in production, DWI process, forming and stamping operations in the can manufacturing industry, which makes Cemented Carbide the ideal tool material.

Tungsten Carbide Manufacturer & Supplier: http://www.tungsten-carbide.com.cn
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Cemented Carbide was not commonly perceived as an automotive material. In reality, Cemented Carbide and Cermets offer a wide range of properties making them very well suited for the new challenges of the automotive industry. Carbide components have been developing and supplying solutions for the automotive industry for decades. Cemented Carbide, related Cermets and carbide components provide the automotive industry tailored solutions from carbide tools to a wide variety of automotive applications.

Cemented Carbide is already successfully used in a variety of automotive applications such as fuel pumps, fuel injectors, compressors and valve trains. With pressures commonly reaching 1600 bars and planned to rise shortly to 2000 bars and higher, Cemented Carbide bring many valuable properties to these applications.
 

Cemented Carbide provides resistance to high temperatures, corrosive environments, high compressive stress, fatigue and many other harsh conditions.
 

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Carbide components are improving the productivity of applications in metal-cutting, mining, mineral and civil engineering, agriculture, food processing and textiles, just to name a few.

The Aerospace Industry above all other demands exceptional performance with the highest level of operational reliability. Cemented Carbide is chosen for such demanding applications as bearing parts for helicopters, fuel pumps and hydraulic components in jet engines. Cemented Carbide components are also chosen to resist the wear experienced in many aspects of food processing. Carbide nozzles and homogenizers are used in the dairy and beverage sectors, carbide crusher parts for cocoa production and cutting knives. Another example is recycling, transforming old scrap into secondary raw materials that can be fed back into the manufacturing process. Sandvik Hard Materials provides Cemented Carbide parts for recycling machines. This ensures a long life on components used to crush waste glass, wood, plastic, rubber, paper etc.
 

Although Wear Parts can be found in a very diverse range of industrial and domestic sectors, they all have one thing in common: the critical need for resistance to impact, corrosion and wear.

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This group of Cemented Carbides contains WC and Co only (i.e. two phases) and a few trace elements. These grades are classified according to their cobalt content and WC grain size.

The grades with binder content in the range 10-20% by weight and WC-grain sizes between 1 and 5 μm have high strength and toughness, combined with good wear resistance.
The grades with binder contents in the range 3-15% and grain sizes below 1 μm have high hardness and compressive strength, combined with exceptionally high wear resistance.

 
Microstructure of γ-phase grade

The Sandvik grade program also includes WC-Co grades which utilize a range of ultra-fine WC grain sizes (< 0.5 μm). With such fine, uniform grain sizes, a unique combination of hardness, wear resistance and toughness can be achieved.

The grades of Cemented Carbides in this group contain WC and Co as the main elements, although small additions or trace levels of other elements are often added to optimize properties. These grades are classified according to their Cobalt content and WC grain size and are often called the "straight grades". They have the widest range of strength and toughness of all the Cemented Carbide types and this is in combination with excellent wear resistance.

Tungsten Carbide Manufacturer & Supplier: http://www.tungsten-carbide.com.cn
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This group of Cemented Carbides contains WC and Co only (i.e. two phases) and a few trace elements. These grades are classified according to their cobalt content and WC grain size.

The grades with binder content in the range 10-20% by weight and WC-grain sizes between 1 and 5 μm have high strength and toughness, combined with good wear resistance.
The grades with binder contents in the range 3-15% and grain sizes below 1 μm have high hardness and compressive strength, combined with exceptionally high wear resistance.

 
Microstructure of γ-phase grade

The Sandvik grade program also includes WC-Co grades which utilize a range of ultra-fine WC grain sizes (< 0.5 μm). With such fine, uniform grain sizes, a unique combination of hardness, wear resistance and toughness can be achieved.

The grades of Cemented Carbides in this group contain WC and Co as the main elements, although small additions or trace levels of other elements are often added to optimize properties. These grades are classified according to their Cobalt content and WC grain size and are often called the "straight grades". They have the widest range of strength and toughness of all the Cemented Carbide types and this is in combination with excellent wear resistance.

Tungsten Carbide Manufacturer & Supplier: http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
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The Cemented Carbides are a range of composite materials, which consist of hard carbide particles bonded together by a metallic binder.

The proportion of carbide phase is generally between 70-97% of the total weight of the composite and its grain size averages between 0.4 and 10 μm.

Tungsten carbide (WC), the hard phase, together with cobalt (Co), the binder phase, forms the basic Cemented Carbide structure from which other types of Cemented Carbide have been developed. In addition to the straight tungsten carbide – cobalt compositions – Cemented Carbide may contain varying proportions of titanium carbide (TiC), tantalum carbide (TaC) and niobium carbide (NbC). These carbides are mutually soluble and can also dissolve a high proportion of tungsten carbide. Also, Cemented Carbides are produced which have the cobalt binder phase alloyed with, or completely replaced by, other metals such as iron (Fe), chromium (Cr), nickel (Ni), molybdenum (Mo), or alloys of these elements.

There are three individual phases which make up Cemented Carbide. In metallurgical terms, the tungsten carbide phase (WC) is referred to as the a-phase (alpha), the binder phase (i.e. Co, Ni etc.) as the b-phase (beta), and any other single or combination of carbide phases (TiC, Ta/NbC etc) as the g-phase (gamma). Other than for metal cutting applications, there is no internationally accepted classification of Cemented Carbides.

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