Duroxite 500


                        DUROXITE®  500


                        Duroxite®  500 is the latest addition to the range of Duroxite® overlay products. It is designed for applications involving abrasive wear and high impact in dry and wet environments. Duroxite® 500 can replace cast materials, titanium carbide overlay products or ceramic materials.

                        Duroxite(R) Formula

                        Ultra-fine complex borocarbides stand up to impact

                        Duroxite® 500 overlay contains complex borocarbides that are 200 times finer than chromium carbides. The complex borocarbides prevent spalling and cracking when exposed to high impact.
                        Duroxite(R) longer life

                        3 times longer wear life in copper mine

                        When replacing the cast Mn liner plate with Duroxite® 500 in the belt machine head, wear life increased from 15 to 45 days. 2,700,000 tons of copper ore was processed before maintenance compared to 900,000 tons for the cast liner.
                        Duroxite(R) hardness at high temperature

                        High hardness also at high temperature

                        Duroxite® 500 has a uniform through-thickness hardness of 67 to 70 HRC for single and multiple-layer overlays. It maintains a high hardness of approximately 60 HRC after exposure to temperatures up to 600°C (1100 °F).
                        SSAB Duroxite 500 Uptimers

                        We are able to extend your wearparts lifetime with Duroxite® 500

                        Duroxite® 500

                        Duroxite® 500

                        Standard overlay thicknesses

                         Standard plate sizes

                         Single pass

                         Multiple passes


                         Metric unit

                        Imperial unit 

                         Metric unit

                         Imperial unit

                         Metric unit

                         Imperial unit

                         3 mm on 6 mm  1/8’’ on 1/4’’  6 mm on 6 mm  1/4’’ on 1/4’’  1.2 m x 2.4 m
                        1.5 m x 3.0 m
                        1.8 m x 3.0 m
                        2.4 m x 3.0 m
                         4’ x 8’
                        5’ x 10’
                        6’ x 10’
                        8’ x 10’
                         5 mm on 8 mm  3/16’’ on 5/16’’  6 mm on 10 mm  1/4’’ on 3/8’’
                             10 mm on 10 mm  3/8’’ on 3/8’’
                             12 mm on 12 mm  1/2’’ on 1/2’’
                             20 mm on 10 mm  3/4’’ on 3/8’’

                        Surface Hardness

                        Number of overlay passes 

                        Typical surface hardness 1) 

                         Single and double passes  67 to 70 HRC (925 to 1075 HV)


                        1) Surface hardness is measured on machined flat surface just below overlay surface.


                        Wear Properties


                        Number of overlay passes 

                        ASTM G65 – Procedure A weight loss 2) 



                        75% depth of overlay 3) 

                         Single pass  0.25 g maximum  0.25 g maximum
                         Double passes  0.18 g maximum  0.18 g maximum


                        2) ASTM G65 is a standard test measuring sliding abrasion resistance using a dry sand/rubber wheel apparatus. ASTM G65-Procedure A is the most severe test method.
                        3) ASTM G65 wear test is conducted at 75% depth of the overlay materials to ensure consistently good wear resistance from the top surface through
                        to the depth of 75% of the overlay.

                        Duroxite® 500 overlay contains an ultra-fine complex borocarbide phase down to approximately 500 nm in a ductile matrix. The typical volume fraction of borocarbides is maintained between 60 to 70% to form a uni-form hard matrix. The SEM (Scanning Electron Microscopy) / EDS (Energy Dispersive Spectrometry) analysis of the Duroxite® 500 overlay confirms that the refined borocarbides are niobium-rich borocarbides, and chromium-rich boro carbides dispersed in an iron-based matrix. The ultra-fine borocarbides are approximately 200 times finer than the traditional chromium carbides.


                        Overall and overlay thickness tolerances can be guaranteed within ±10% of specified thickness.


                        Plate flatness tolerance can be guaranteed within ±3 mm (±1/8”) over 1.5 m (5’) plate length for plate dimensions equal to or less than 1.5 m (5’) x 3.0 m (10’). For plates greater than 1.5 m (5’) wide by 3.0 m (10’) long, the plate flatness tolerance can be guaranteed within ±25 mm (±1”).

                        Duroxite® 500 is supplied in an as-welded condition.

                        Welding, cutting, forming and machining

                        Recommendations can be found in the Duroxite® Product brochure, or consult your local technical support representative for more information.




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