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  3. II. Internal thread workpiece material × Threading-Taps material
  4. Ferrous Metals | Cast Iron Series
  5. Ductile iron FCD

Ductile iron FCD

FCD is a common designation for ductile iron in Japanese JIS and Taiwanese CNS standards.

Common Grades:

• FCD400

• FCD500

• FCD600 
The digits represent the lowest tensile strength grade.

Thread Machining Characteristics
Chips may be:

• Granular
Due to factors such as material strength, porosity, and casting structure, the following may occur:

• HSS tool wear

• Abnormal thread dimensions

• Thread shrinkage

• Reduced tool life


UGMIC Evaluable Products

• Solid  Carbide Spiral Fluted Taps – J.SpT.SC

• Welded  Carbide Spiral Fluted Taps – J.SpT.WC

• Solid Carbide Straight Fluted Taps – J.StT.SC

• Welded  Carbide Straight Fluted Taps – J.StT.WC

• Thread Mills



II. Internal thread workpiece material × Threading-Taps material

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