Series Model: YG8 / K20 Hexagonal Nut Forming Dies

WC-Co Material Grades: YG8 (Co 8%), equivalent to ISO K20-K30; fine grain structure 

Key Dimensions & Tolerances: Custom hexagonal cavity dimensions per nut specifications; tolerance ±0.002–0.005 mm; precision-ground working surfaces 

Physical Properties: Hardness ≥89 HRA; TRS ≥1840 N/mm²; density 14.6–14.9 g/cm³; high wear resistance for long service life 

Surface Roughness & Coatings: Working surface Ra 0.05–0.1 μm (mirror polish); optional TiN, TiCN, CrN, TiAlN coatings for reduced friction 

Applicable Materials & Service Life: Carbon steel, alloy steel, stainless steel; suitable for hot-press forging, cold-press stamping, and cold heading of hexagonal nuts and fasteners 

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