Hardfacing with Tungsten Carbide for Wear Resistance

Hardfacing is a welding process of build-up deposits of alloys to resist corrosion, abrasion, high temperature, or impact.  Hardfacing increases a part’s service life and can thus directly affect machinery efficiency and reduce the amount of equipment that is scrapped.  When addressing wear resistance needs, high-deposit hardness material does not always provide the best overall wear resistance.  Rather, when choosing a hardfacing alloy for wear resistance, the presence of carbides must be considered in addition to hardness properties.

Alloys that are typically used for hardfacing include iron-base alloys, cobalt-base alloys, nickel-base alloys, and tungsten carbides.  Tungsten carbide is one of the most superior metal-to-earth abrasion resistant hardfacing materials.  When compared to a chromium carbide overlay, a machine part hardfaced with tungsten carbide can experience a 3 to 5 time increase in service performance.

Polymet offers two tungsten carbide wires, POLYTUNG NiBWC, with a Ni-B-Si-matrix, and POLYTUNG NiCrBWC, with a Ni-Cr-B-Si-matrix.  The matrix is responsible for roughly 35-40% of the deposit alloy while the tungsten carbide consists of the remaining 60% of the deposit alloy.  Both of these alloys have a macro crystalline carbide structure.  Some of the applications that are hardfaced using Polymet’s POLYTUNG wires are dredge cutter heads & teeth, ID elbows & pipes, oil tool bits, and bucket teeth.  Hardfacing with tungsten carbide materials can be applied to industries such as mining, oil & gas, and construction.

Polymet Streamlines Industrial Product Line

Polymet Corporation, a Cincinnati-based manufacturer of hardfacing, welding, and thermal spray wire, has announced its finalization on streamlining their rapidly growing product line of Industrial Hardfacing & Welding Wire.  This product line targets markets such as the lumber, valve, petrochemical, and mining industries.

To better serve their customers’ needs and requirements with a more focalized approach, Polymet has scaled back on its product offerings.  Danny Newman, Sales Manager for Hardfacing & Welding, has been at the forefront of the product line’s restructuring.  “Since our inception, we [Polymet] have been a company that serves very precise, niche markets and their customer’s needs,” Danny states.  “This allows us to provide excellent quality, efficiency, and customer service.  We wanted to take that same approach and apply it to this product line.”

Nickel and cobalt-based alloys now comprise the product line that was once filled with mostly iron-based materials.  Polymet’s two main nickel-based products are the POLYWEAR (equivalent to COLMONOY®) and POLYTUNG (equivalent to DURMAT®) alloys.  Typical applications for these materials are dredge cutters, elbows & pipes, and loader bucket teeth.  Representing the cobalt-based alloys are the POLYSTEL (equivalent to STELLITE®) alloys.  These alloys have been at the pinnacle of the industrial product line’s advancement and growth.  Typical applications include valve seats, saw blade tipping, and extrusion screws.

Polymet’s revitalized product line carries materials such as POLYSTEL 6 (STELLITE® 6), POLYSTEL 12 (STELLITE® 12), and POLYSTEL 21 (STELLITE® 21).  They also offer custom alloy development services to meet customers’ unique needs and application demands.  Alloys with special compositions can be manufactured in small batches with short lead times.

STELLITE ® is a registered trademark of Kennametal Stellite

DURMAT ® is a registered trademark of Durmat Inc

COLMONOY ® is a registered trademark of Wall Colmonoy Corporation

Polymet is a Part of Ohio’s Debut at Farnborough

Ohio, known as the birthplace of aviation, is regaining its reputation as one of the most important aerospace regions in the world.  The Ohio Aerospace & Aviation Council was formed to develop new ideas and strategies that will help grow the aerospace industry within the state of Ohio ensuring that the sate remains a key industry leader.

Check out the full strategic plan of The Ohio Aerospace & Aviation Council!

As a part of their strategy the State of Ohio will participate for the first time ever at the  Farnborough International Air Show in the UK.  Polymet Corporation, an Ohio-based manufacturer of wire for the aerospace industry will be a part of Ohio booth at the show.  Farnborough is the world’s most iconic global aviation event. This show brings together more than 1,400 exhibitors from the aerospace, defense, space, and security sectors.

We are extremely excited to be a part of the Farnborough Air Show and will be happy to share its news and events with our readers.  Stay tuned!

Here is an article where Polymet was featured as part of Ohio’s debut at Farnborough – Ohio makes its debut

       

      

Hardfacing Wire Manufacturer Polymet Corporation Welcomes New Marketing and Sales Specialist

Polymet Corporation, a leading manufacturer of high performance hardfacing welding wire and thermal spray wire located in Cincinnati, is pleased to welcome Peter Humphries as a new Marketing and Sales Specialist.  Peter will be responsible for marketing efforts including trade shows, website, social media, advertising, as well as assisting in sales, customer service, and product management activities.

Peter, a graduate of the University of North Carolina Wilmington with a degree in Business Administration, has a background in Advertising Sales and Customer Service.  Peter’s sales experience and knowledge of marketing and social media will allow for an immediate impact at Polymet Corporation.

“I’m thrilled to join the Polymet team and work with such a talented group of individuals.  I plan on being an integral part of the continuing success here at Polymet,” says Peter Humphries.

Bob Unger, sales manager of Polymet, states “We are extremely happy with the addition of Peter and want to welcome him to our team at Polymet Corporation.  His experience, eagerness to learn, and dedication will be a great asset to Polymet and our customers going forward.”

Peter, welcome to Polymet Corporation! 

Polymet to Exhibit at The New Brazil Welding Show

Polymet Corporation, a leading manufacturer of high performance wires for hardfacing, welding and thermal spraying located in Cincinnati, will exhibit at the Brazil Welding Show in Sao Paulo, October 18-21.

This will be the first individual trade show in Brazil for welding technology, that offers companies from all over the world to present their latest hardfacing and welding solutions.  Polymet is very excited to participate in this show, meet potential customers and expand its business in Brazil.

Bob Unger, sales manager for Polymet states, “We look forward to this show as a perfect opportunity for Polymet to present its products and technology to the rapidly growing Latin American Market.”

Polymet will exhibit its complete line of wire products, including the new Polytung tungsten carbide hardfacing wires and other new developments.

Stop by our booth and see our latest hardfacing, welding and thermal spray products!

Polymet Introduces New Tungsten Carbide Hardfacing Wires

Polymet Corporation, a leading manufacturer of high performance wires for hardfacing, welding and thermal spraying, has introduced two unique new tungsten carbide hardfacing wires for demanding wear applications.

The new wires, designated Polytung, are available in 0.062 inch (1.6 mm) and 0.091 inch (2.4mm) diameters.  Two versions are available in each diameter, Polytung NiBWC, tungsten carbide in a nickel boron matrix, and Polytung NiCrBWC, tungsten carbide in a nickel chrome boron matrix. Both wires are available with standard tungsten carbide and macro crystalline carbides.

Polytung NiCrBWC MACRO

Recent G-65 abrasion test data as well as field trial applications confirm that the new Polytung wires are superior to other wear resistant hardfacing alloys.

Polytung NiBWC CAST

Polytung NiBWC MACRO

Polytung NiBWC and NiCrBWC are ideal for MIG welding/hardfacing of the most demanding applications such as rotary dredge cutter heads, draglines and loading buckets in the mining industry.

           

Polymet Corporation Appoints a New Distributor in Turkey

Polymet Corporation, a leading manufacturer of wire for hardfacing, welding and thermal spraying, has expanded its sales operations to Turkey.

Polymet is pleased to announce that it has completed a distribution agreement with Sinerji Metal Ltd.  This will enable the company to expand its global reach and promote its hardfacing, welding and thermal spray wires in Turkey.

Already having some success with thermal spray wire in Turkey, Polymet is looking to expand this business as well as target the aerospace, wood and industrial hardfacing market in Turkey.

To support these efforts, Danny Newman, hot extruded wire sales manager at Polymet will be traveling to Istanbul in early October to support Sinerji’s efforts, meet end users and attend the Wood Processing Machinery show October 15^th-19^th in Istanbul, Turkey.

Mr. Newman states “I am very excited to be working with Mr. Alper Vurar, General Manager and CEO of Sinerji Metal.  Mr. Vurar brings years of experience in the thermal spray market, excellent contacts in the hardfacing market and unmatched energy and enthusiasm to our product line in Turkey.  Mr. Vurar has already generated much interest in our cobalt hardfacing products, NiBWC hardfacing products as well as our aerospace and thermal spray wires.  With Sinerji keeping many of these products stocked in Turkey, I expect great growth for Polymet in this region of the world”.