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Tungsten Alloy Ball for Fishing Weight. High Density Range: Density ranges from 17.0 to 18.50 g/cm3 for compact heavy parts. Wide Diameter Options: Available in diameters from 2.5mm to 200mm for various applications. Diverse Alloy Compositions: Compositions include W-Ni-Fe, W-Ni-Cu, and W-Ni-Cu-Fe with Co, Mo, Cr. ASTM B 777 Compliance: Meets ASTM B 777-15 standard for nonmagnetic and standard alloys. High Hardness and Strength: Hardness up to 35 HRC with ultimate tensile strength up to 758 MPa. Versatile Applications: Used for fishing weights, armor piercing, and kinetic energy penetrators. ISO 9001 Certified: Manufacturer holds ISO9001:2015 certification for quality management.