SHS 9800 is a steel alloy with a unique glass forming chemistry that allows high undercooling to be achieved during welding. This results in considerable refinement of the crystalline microstructure to a near nanosize (submicron) range. The ultra refined microstructure allows SHS 9800 to provide vastly improved hardness that lasts significantly longer than traditional carbide remedies.

High Hardness
SHS 9800 maintains maximum hardness performance of 68-71 HRc from the weld interface throughout the entire overlay in single pass applications allowing the overlay to be fully protective throughout the volume. The micrograph to the right shows how 68-71 HRc maximum hardness is achieved within several microns of the weld overlay interface. HRc hardness values in the micrograph were measured from a single pass SHS 9800 overlay applied to A36 steel plate substrate.

Exceptional Wear Resistance
SHS 9800 provides exceptional resistance to severe sliding abrasion in extreme service environments. SHS 9800 can be built up to three passes (3/8 in) as necessary with all layers providing maximum wear resistance of 0.09 - 0.11 g (+/- 0.02) mass loss in ASTM G65-04 abrasion tests.

Impact Resistance
The superior toughness of SHS 9800 results from the in-weld formation of a large quantity of refined complex borocarbide phases including M₃(BC)₁, M₂(BC)₁, M₁(BC)₁ during welding which are surrounded by ductile α-Fe (ferrite) phases. The borocarbide phases are completely wetted by the matrix and prevent premature pull-out, delamination and crack nucleation. Their refined nature allows the reduction of stress concentration sites and the ductile matrix supplies effective crack blunting and bridging, resulting in improved impact resistance.

SHS 9800 Wear Plate
SHS 9800 can be applied as an overlay on carbon steel and low alloy steel substrates to form wear plate. SHS 9800 wear plate responds very similar to standard chrome carbide overlay plate during forming, cutting and fabrication. SHS 9800 wear plate can be rolled or formed by press brake into desired shapes for specific applications. Formability is similar to standard overlay plates and dependant on thickness and weld position on the inner or outer diameter. Plasma arc cutting is recommended for shape cutting and large hole piercing. As with chrome carbide wear plate, SHS 9800 wear plate cannot be flame cut. For applications requiring less precision, SHS 9800 overlay material can be removed by means of carbon arc gouging. SHS 9800 overlays are non-machinable and, if necessary, surface finishing can be done by grinding or EDM. SHS 9800 wear plate can be installed by plug or fillet welding, or bolted into place. Any weld seams should be overlaid with SHS 9800 wire, available exclusively to NanoSteel SHS 9800 wear plate solution customers, to protect the plates from wear caused by undercutting of the overlay at the seams.