KAR85-AM-K Corrosion Resistant Tungsten Carbide

October 09, 2021
KAR85-AM-K a Proprietary Blend of Cobalt, Nickel, and Chromium

Kennametal Inc. (NYSE: KMT) has launched KAR85-AM-K, its most corrosion resistant tungsten carbide grade for metal additive manufacturing. It is available exclusively in combination with Kennametal’s binder jet 3D printing capabilities to produce fully finished wear components. With KAR85-AM-K, Kennametal combines the advantages of 3D printing, such as greater design flexibility and shorter lead times, with the performance of conventional carbide, to produce high-performance parts for customers in oil and gas, power generation and beyond. Components made with the new grade are already in field trials with select customers.

“Kennametal is leading the way in tungsten carbide additive manufacturing by combining the superior wear and corrosion resistance of our new KAR85-AM-K grade with deep expertise in binder jet 3D printing,” said Jay Verellen, General Manager, Kennametal Additive Manufacturing. “With this new grade, we’re delivering the best of both worlds for our customers—the highly desirable material properties of conventional tungsten carbide with the design flexibility of additive—for high performance components that go the distance in the most demanding applications.”

Drawing on its deep materials science expertise, Kennametal developed KAR85-AM-K to provide corrosion and wear resistant properties analogous to its conventional counterpart grade, CN13S. Combined with Kennametal’s binder jet additive manufacturing capabilities, KAR85-AM-K results in fully densified, corrosion resistant components that meet or exceed the properties of conventionally manufactured carbide components.

The new grade composition features a proprietary blend of cobalt, nickel, and chromium for improved corrosion resistance compared to standard cobalt-based tungsten grades. It is Kennametal’s second commercial carbide grade developed for use in its binder jetting additive manufacturing processes and the latest addition to the business’s portfolio of high-performance metal powders optimized for 3D printing.

Related Glossary Terms

  • corrosion resistance

    corrosion resistance

    Ability of an alloy or material to withstand rust and corrosion. These are properties fostered by nickel and chromium in alloys such as stainless steel.

  • tungsten carbide ( WC)

    tungsten carbide ( WC)

    Intermetallic compound consisting of equal parts, by atomic weight, of tungsten and carbon. Sometimes tungsten carbide is used in reference to the cemented tungsten carbide material with cobalt added and/or with titanium carbide or tantalum carbide added. Thus, the tungsten carbide may be used to refer to pure tungsten carbide as well as co-bonded tungsten carbide, which may or may not contain added titanium carbide and/or tantalum carbide.

Additional Products from Kennametal Inc.

Designed for extended tool life and smooth drilling at high metal removal rates, Drill Fix PRO has outboard inserts that feature a wiper geometry for smoother surface finishes and larger coolant channels for high-volume flow. Other platform advancements include the versatility of the four-time…

The product expansion includes best-in-class features and advanced technology for metal cutting applications. The launch includes eight products that expand on and support existing platforms in delivering superior performance across multiple applications as well as address common machining…

The Blast Ninja reduces air exit velocity while maintaining particle velocity, resulting in a significant reduction in noise production at the source while maintaining blasting production. This proven technology remains Kennametal-manufactured and is now available directly through authorized…

Using the 140-degree solid carbide point design from Kennametal’s GOdrill, the KenTIP FS GTP insert allows for multiple machining applications across a range of materials including steel, stainless steel and cast iron. KenTIP FS GTP also features excellent centering capabilities, even at moderate…

KYHK15B provides excellent edge stability, high chipping resistance, and a PVD gold coating makes wear progression identification very easy. From smooth and varying depths of cut to heavy depths of cut, KYHK15B can be an economic alternative to PcBN inserts.

All Beyond Evolution insert styles feature the Triple-V Seating: Tight grip on the back (1) and top & bottom (2) provides maximum stability, especially when operating multidirectional turning and profiling.

KCK20B and KCKP10 are suitable for wet or dry cuts. These include rotor hubs used in windmills, pump housings, steering knuckles and gear housings for heavy equipment, and automotive components like crankshafts and cylinder heads. While KCK20B delivers higher productivity in roughing and semi-…

Machining three diameters in one operation, the stator bore tool ensures the alignment and concentricity of the machined surfaces whilst reducing the cycle time significantly. The lightweight 3D printed combination tool enables a faster tool change and spin-up even on less powerful machines. The…

The tangential design of the FIX8 insert features a rigid clamping system that pulls the insert securely into the pocket seat, offering superior stability that enables the insert to withstand large cutting forces and vibrations for optimal performance. The insert is also supported by a replaceable…

The HiPACS drilling and countersinking system can be utilized on all machines typically used for aerospace applications. In less stable conditions such as robot end effectors, the diamond coated carbide drills offer excellent tool life and hole quality. PCD-tipped drills, on the other hand, excel…

PRODUCTS

09/30/2024
Elevate your operational efficiency and streamline setup with the unparalleled convenience of the…

09/26/2024
Mate Precision Technologies, a leading provider of innovative workholding solutions, has introduced…

09/12/2024
The versatility of the Protomar Mini is proven through its application in multi-diameter machines,…