Astm e23-18 pdf free download

Powder metallurgy impact test specimens shall be produced following the procedure in Practices B The impact test results of these materials are affected by specimen orientation. Therefore, unless otherwise specified, the position of the specimen in the machine shall be such that the pendulum will strike a surface that is parallel to the compacting direction. For powder metallurgy materials the impact test results are reported as unnotched absorbed energy.

NOTE 2—Variations in notch dimensions will affect the results of the tests. Appendix X 1. NOTE 3—In keyhole notch specimens. Exercise care in cutting the slot to ensure that the surface of the drilled hole opposite the slot is not damaged. No markings, on any side of the specimen, shall be within 10mm of the center line of the notch.

Permanent markers, laser engraving, scribes, electrostatic pencils. However, some marking methods can result in damage to the specimens if not used correctly. For example, excessive heat from electrostatic pencils or deformation to the specimen from stamping can change the mechanical properties of the specimen. Add to Alert PDF. Please first log in with a verified email before subscribing to alerts. Please first verify your email before subscribing to alerts. Already Subscribed to this document.

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