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OKI Brass Wire OB-PN

OKI Brass Wire (OB-PN)

  • Wire with no paraffin coat

The PN Type is a special electrode wire most suitable for wire electric discharge machines, which has been developed using high-speed machining and automatic threading technologies.

It yields a fine finish in machining work materials while exhibiting superior automatic theadability.


  • Exhibits superior automatic threadability when used with Mitsubishi Electric wire electric discharge machines RA, PA and FA series
  • Holds excellent straightness and tensile strength at room temperature, maintaining high automatic threadability and the fine finishes of machined surface.
  • Requires cardboard boxes only for packaging with no styrenefoam, which contributes to enviromental conservation and reduces costs for industrial waste disposal.

Wire Diameter and Characteristics

Diameter CodeType CodeStandard diameter (mm)Diameter tolerance (mm)Tensile stength (MPa)Breaking load (N)Conductivity (%)
7 PN 0.07 0.001 950min 3.7min 21min
10 0.10 7.7min
15 0.15 17.4min
20 0.20 980min 30.8min 22min
25 0.25 48.2min
30 0.33 89.3min

These characteristic values are guaranteed under the ordinary temperature.

Make Up for PN type

Diameter CodeP-3R 0.5kgP-3R 1.5kgP-3R 3.0kgP-6R 5.0kgP-10 10.0kgP-15 20.0kg
7 O O O
10 O
15 O
20 O O O
25 O O O
30 O O O

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