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Sapphire Spheres for Analytical and Research Applications - Alfa Aesar

Specifications for Grade 25 Sapphire Spheres

  • Diameter tolerance per half - ±0.000025 in.
  • V block out of round in 120° angle - ±0.000025 in.
  • Basic diameter tolerance - ±0.0001 in.
  • Maximum surface roughness (arithmetic average) - 1.5 micro-inch

  • Sapphire sphere; diameter(in), 1/32" (0.794mm), grade 25
  • Sapphire sphere; diameter(mm), 0.25; grade 25
  • Sapphire sphere; diameter(mm), 0.50; grade 25
  • Sapphire sphere; diameter(mm), 1.00; grade 25
  • Sapphire sphere; diameter(mm), 1.19 (3/64in); grade 25
  • Sapphire sphere; diameter(mm), 1.25; grade 25
  • Sapphire sphere; diameter(mm), 1.50; grade 25
  • Sapphire sphere; diameter(mm), 1.59 (1/16in); grade 25
  • Sapphire sphere; diameter(mm), 1.75; grade 25
  • Sapphire sphere; diameter(mm), 2.00; grade 25
  • Sapphire sphere; diameter(mm), 2.50; grade 25
  • Sapphire sphere; diameter(mm), 3.00; grade 25
  • Sapphire sphere; diameter(mm), 3.18 (1/8in); grade 25
  • Sapphire sphere; diameter(mm), 3.50; grade 25
  • Sapphire sphere; diameter(mm), 4.00; grade 25
  • Sapphire sphere; diameter(mm), 4.78 (3/16in); grade 25
  • Sapphire sphere; diameter(mm), 5.00; grade 25

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