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                      Alloy screw

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                      Alloy screw

                      Alloy screw

                      • Specifications:
                         
                        Screw diameter: 15-300 mm
                         
                        Maximum length: 8000mm
                         
                        Inner diameter of barrel: 15-300 mm
                         
                        Maximum length: 4000 mm
                         
                         
                         
                        Different alloy materials can be selected according to different raw materials
                         
                         
                         
                        Substrate material:
                         
                        1)38CrMoAlA(JIS SACM645)
                         
                        Alloy material:
                         
                        1) Nickel base alloy + tungsten carbide
                         
                         
                         
                         
                         
                        Treatment process:
                         
                        heat treatment
                         
                        Nitriding treatment
                         
                        Spraying bimetallic alloy
                         
                        Centrifugal casting of bimetallic alloy
                         
                         
                         
                        Technical parameters:
                         
                        Nitriding depth: 0.50mm-0.80mm
                         
                        Nitriding hardness: 58-62hrc
                         
                        Surface roughness: RA 0.4
                         
                        Screw straightness: 0.015mm
                         
                        Double alloy depth: 3mm
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