Ridgway Powdered Metals Custom Powdered Metals Provider

6931 Ridgway-St. Marys Road
Ridgway, PA 15853
Phone: (814) 772-5551
Fax: (814) 772-1492
sales@ridgwaypm.com


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Tolerances for Powdered Metal -
Ridgway Powdered Metals

Typical Powdered Metal Tolerances for Ferrous Powdered Metal Parts of Uniform Cross Section:

As Sintered

Coined or Sized

Characteristic

Practical

Possible

Practical

Possible

Length

+/- 0.005

+/- 0.003

+/- 0.004

+/- 0.003

Inside Diameter

+/- 0.002

+/- 0.001

+/- 0.001

+/- 0.0005

Outside Diameter

+/- 0.002

+/- 0.001

+/- 0.001

+/- 0.0005

Concentricity (TIR)

0.003

0.002

0.002

0.0015

Flatness

+/- 0.002

+/- 0.001

+/- 0.001

+/- 0.001

Parallelism

+/- 0.0015

+/- 0.001

+/- 0.001

+/- 0.001