scope:

This standard describes a method for determining the change in dimensions of a powder metallurgy specimen after sintering. The dimensional change is the difference, typically expressed as a percentage, between a dimension of the sintered specimen and the corresponding die dimension.

NOTE 1-The general procedure of measuring the dimensions of the compacting die or a PM compact or test piece, before and after a processing step and calculating a percent dimensional change, may be adapted for use as an internal process evaluation test to quantify green expansion, dimensional change from the size of the green part, repressing size change, heat treatment changes, or other changes in dimensions that result from a manufacturing operation.

With the exception of density, for which g/cm³ is the industry standard, this standard uses inch-pound units. Values in SI units are shown in parentheses and result from conversion in accordance with IEEE/ASTM SI 10. They may be approximate and are only for information.

This standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the potential safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.