The machining and grinding characteristics of Densalloy are very similar to those of hard grey cast iron. Being non-porous, standard water soluble coolants may be used if desired, but are not required. The use of single point carbide tools is generally recommended and excellent finishes to close tolerances are readily achieved. The depth of cut and chip formation depicted in the various machining operations are performed by conventional machining methods.

The Following Are Suggested Guidelines Only:

  • Turning and Boring: Carbide tipped tools - rounded nose.
  • Roughing: Depth of cut .030"- .060"
  • Feed: .008"-.015"
  • Speed: 200-300 sfm (surface feet per minute)
  • Finishing: Depth of cut .002"-.010"
  • Feed: .002"-.005"
  • Speed: 300-500 sfm. No coolant required.
  • Milling and Shaping: Light feeds and bevelled edges recommended to minimize break out.
  • Drilling and Tapping: High speed steel drills and taps may be used. Through holes recommended. Material must be firmly held. Hand feed-lubricant or cutting oil acceptable.
  • Grinding and Lapping: Medium hard, vitrified bond, aluminum oxide, silicon carbide or diamond wheels may be used. Use of ample coolant is suggested.
  • Joining: Material may be silver brazed, or copper brazed in hydrogen atmosphere.

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ESPI was incorporated in 1950 with a mission to provide a competitive source for high purity metals, metal compounds and alloys. We are a valuable resource for virtually all major universities worldwide, global corporate R&D laboratories, thousands of domestic and international manufacturing companies and all U.S. government research laboratories. ESPI offers unique advantages often unavailable from larger organizations with no minimum order size & all business hour calls are handled by a competent sales representative. Automated answering systems and voice mail are not an option at ESPI.

Located within our fabrication facility is the melting department, forging & shaping areas, and the rod & wire, and sheet & foil departments providing the following manufacturing capabilities:

  • Casting of pure metals and alloys
  • Vacuum arc melting
  • Induction melting
  • Rod and wire drawing/extrusion
  • Sheet, foil and ribbon rolling
  • CNC milling and machining

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ESPI produces and sells 68 elements and dozens of alloys in various forms for your custom needs. Click on the forms below to be directed to detailed information on manufacturing.



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