Screw and Barrel Accessories Accessories for injection molding machine screw and barrel including screw tip, cylinder head, nozzle, rings, non-return valve and so on. Material: 38CrMoALA, SKD61, SKD11 Technical Parameter: Nitrided layer depth:0.50-0.80mm Nitrided hardness: 900-1100HV Nitrided brittleness: Less than 2 level Surface roughness: Ra 0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitriding: ≥950HV Chrome-plating layer depth: 0.025~0.10mm Bimetallic layer depth: 2 mm Bimetallic hardness: HRC50-65 Products display:
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