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                        Duroxite 100 Pipe

                        Duroxite® 100 Pipe

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

                        The hardfacing overlay pipe is designed with extreme wear capabilities for working in the most severe environments. Duroxite? 100 Pipe is available with double or multiple overlay passes. Schedule 40 and Schedule 80 steel pipe as well as tubing can be hardfaced. Overlay Pipe can be fabricated as square-to-round transitions, elbows, T or Y-shaped, or as long sweeps.

                         

                        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

                         

                        Typical Applications

                        Duroxite? 100 Pipe is widely used in the mining, cement, oil sands, dredging, recycling and steel production industries.
                        Some specific applications include:

                        • Mining, Cement, Oil Sands: Slurry pumps, chutes
                        • Dredging: Dredging pipes
                        • Recycling: Cullet glass
                        • Steel: Air ducts, carbon injection pipes, suction lines, troughs

                        Duroxite® 100 Pipe

                        Duroxite® 100 Pipe

                         Outer Diameter

                        Length

                        Other Custom Specifications 

                         Metric unit

                        Imperial unit 

                         Metric unit

                         Imperial unit

                         Other Custom Specifications

                         150 mm   6’’  0.9 m  3'
                        • All available gauges > Schedule 40 steel pipe
                        • Lengths cut or fabricated as needed
                        • Stainless steel and other pipe grades available
                        • Custom diameter lengths and gauge sizes are
                          available upon request
                        • Diameters larger than 36” can be fabricated from
                          formed Duroxite® 100 plate
                         200-350 mm  8 -  14’’  0.9 - 3.0 m  3-10’
                         350-600 mm  14 - 24’’  0.9 - 6.0 m  3-20’
                         600-900 mm  24 - 36’’  1.8 - 6.0 m  6-20’

                         

                         

                        Surface Hardness

                        Number of overlay passes 

                        Typical surface hardness 1) 

                         Double or multiple  59 to 62 HRC (675 to 750 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% depth3) 

                         Double or multiple  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 Pipe 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

                        Welding, cutting, forming and machining

                         

                        Workshop recommendations can be found in the Duroxite® overlay brochure or you can consult your local technical support representative for more information.

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