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Carbide Overview-
It is a well known fact that carbide insert snow plow blades provide superior performance in terms of longevity when compared to traditional steel snow plow blades. Life expectancy of carbide blades is generally 10 to 20 times longer than that of a steel blade depending on the steel grade and blade thickness of the steel blade being compared.

Carbide2With this in mind, it is critical to know that all carbide blades are not the same. Our carbide snow plow blades start with high quality, flat, hot-rolled A36 finished steel that is machined to exacting tolerances for the acceptance of our carbide inserts. When looking at carbide inserts, we specifically designed ours to be superior to all carbide snow plow blades currently on the market. Carbide blade performance will depend on multiple factors including the chemical composition of the carbide inserts, the fit-up between the machined slot in the steel blade and the width of the carbide insert and the brazing process and brazed used to affix the carbide into the steel blade. At Evolution Edges we utilize the latest, technically advanced materials and equipment to ensure our carbide blades are superior in terms of operating performance.

Carbide Properties
We worked with multiple suppliers of tungsten carbide to develop a specific carbide grade in terms of chemical composition and physical properties that results in superior product performance from a wear and shock resistant perspective.

bladewithCarbideHardFacingCarbide Hardfacing In an attempt to simplify a very complex subject, the performance of carbide in a snow plow blade applications will be dependent upon three basic factors, (1) the chemical composition of the carbide (the relationship between the tungsten carbide and cobalt filler), (2) the hardness of the carbide and (3) the grain size and structure of the tungsten carbide. The key characteristics you want to achieve on snow plow applications are hardness for extended life, shock resistance and transverse rupture strength for durability while plowing. By varying the three input variables consisting of tungsten carbide content, cobalt content and tungsten carbide grain structure, you can alter the performance characteristics of the carbide inserts.

As the tungsten content percentage is increased the hardness of the carbide increases resulting in increased wear life however the carbide becomes more brittle and less shock resistant.
As the cobalt content increases the shock absorption ability improves but the hardness drops resulting in less wear.

By varying the grain structure of the tungsten you can improve the toughness of the carbide in terms of rupture strength.

As a consumer you can judge the performance of the carbide being used for snow plow applications by matching the specifications of suppliers for hardness, cobalt content and transverse rupture strength. Ideally you want a blade that utilizes carbide inserts that have a high hardness, high cobalt content and high transverse rupture strength. At Evolution Edges we have developed a product that leads the market in terms of all three specifications. We have done this be electing to put more money into our carbide inserts to develop a superior performing product.

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Evolution Edges
98 Philo Road West
Elmira, NY 14903
Phone: 800.733.5508
Fax: 607.732.5379

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