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                            Duroxite 100
                            Duroxite?-Taking Durability to the Extreme

                            Duroxite® 100

                            Duroxite? 100 is manufactured by depositing chromium-rich, abrasion-resistant materials on a mild steel base plate using a traditional arc welding process.

                            The hardfacing overlay plate is suitable for severe abrasive wear and moderate to low impact applications. The multiple-layer overlay is also capable of maintaining full wear resistance up to 350 oC (660oF) and the typical surface hardness of 55 HRC at elevated temperatures up to 540°C (1000°F). Duroxite? 100 is available in single layers or multiple layers up to 20 mm (3/4”) in overlay thickness.

                            Key Benefits

                            • Same wear resistance guaranteed from surface down to 75% of the overlay
                            • Optimal carbide composition to provide good combination of wear resistance and homogenous bonding
                            • Good formability due to staggered cracking pattern on overlay surface


                            Typical Applications

                            Duroxite? 100 is widely used in the mining, power generation, cement, dredging, steel production, waste handling, glass production, and pulp and paper industries. Some specific applications include:

                            • Mining: Chutes/hoppers, liners for truck beds, dozer blades, shovel buckets, dragline buckets, excavators
                            • Cement: Separator guide vanes, discharge cones for clinker storage bins, chutes for sintering ore conveying, outlet ducts for clinker grinding mills, receiving hoppers
                            • Dredging: Dredging pipes and pumps, suction pipelines, pump discharges
                            • Steel: Fan blade/housings, coke vibrating screen plates
                            • Power: Coal handling chutes, coal feeder liners, crusher screen plates, classifier cones, journal liners, silo bunkers

                            Duroxite® 100

                            Duroxite® 100

                            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 pass  55 to 57 HRC (590 to 630 HV)
                             Double passes  59 to 62 HRC (675 to 750 HV)
                             Triple and more passes  60 to 64 HRC (700 to 810 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) 

                             

                             Surface

                            75% depth of overlay 3) 

                             Single pass  0.25 g maximum  0.25 g maximum
                             Multiple 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.


                            The microstructure of Duroxite® 100 is composed of a high proportion of extremely hard primary M7C3 chromium-rich carbides with a typical hardness of 1700 HK4) dispersed evenly in a ductile eutectic austenite matrix. The volume fraction of primary carbides is maintained between 30 to 50% to provide a good combination of wear resistance and homogenous bonding. 

                            4) HK is the Knoop microhardness used primarily for very brittle materials.

                            Duroxite microstructure

                            Thickness

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

                            Flatness

                            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 following flatness guarantees apply.

                            Standard overlay thicknesses

                            Flatness tolerance over 1.5 m (5’) plate length
                            Metric unit (Imperial unit) 

                             

                            Metric unit

                            Imperial unit

                             1.8 m x 3.0 m (6’ x 10’)

                            2.4 m x 3.0 m (8’ x 10’) 

                             Metric unit

                             Imperial unit

                             Metric unit

                             Imperial unit

                             5 mm on 8 mm  3/16’’ on 5/16’’  25 mm  1’’  41 mm  1-5/8’’
                             6 mm on 6 mm  1/4’’ on 1/4’’  25 mm  1’’  Not available
                             10 mm on 10 mm  3/8’’ on 3/8’’  12 mm  1/2’’  25 mm  1’’
                             12 mm on 12 mm  1/2’’ on 1/2’’  6 mm  1/4’’  16 mm  5/8’’

                             

                            For custom sizes, please consult your local sales representative or Hardox Wearparts center for flatness guarantees.

                            Duroxite® 100 is normally supplied in an as-welded condition, but can also be supplied in a ground condition upon request.

                            Welding, cutting, forming and machining

                            Recommendations can be found in the Duroxite® Product brochure, or consult your local technical support representative. Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the product.

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