CHARPY/IZOD IMPACT PENDULUMS 15/25/50J

Cod: 470201 / 470245 / 470241Standard: ASTM D256 (Izod impact), ISO 179 (Charpy impact), ISO 180 (Izod impact), ASTM D6110 (Charpy Impact), ASTM D4812 (Unnotched Cantilever Beam Impact), ASTM D4508 (Chip Impact), ASTM D950 (Adhesive Bond Impact) and other similar standards.

To determine the necessary energy to break a specimen with a known cross-section.

The various methods allow for the determination of the necessary energy to break a specimen – having a known cross-section - then calculating its resilience value at a given conditions.

The potential energy of the hammer is known and it varies depending on the hammer’s shape, weight and release angle. The absorbed energy to break the specimen can be determined after measuring the ascent angle of the hammer after the impact. The test methods to perform with this structure are Charpy, Izod and Tensile Impact.

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15 Joules (Code: 470201).
25 Joules (Code: 470245).
50 Joules (Code: 470241).

Differences among these test methods are related to the way the specimen is mounted and how it is impacted.

CHARPY METHOD:
The specimen, rectangular shaped, is positioned horizontally and is broken with one oscillation of the hammer only; the impact line is centred between the two specimen supports.
IZOD METHOD:
Specimen, rectangular shaped, is blocked at one end in vertical position and it is broken with one oscillation of the hammer only; the impact line is at a fixed distance from the blocking point of the specimen.
TENSILE IMPACT METHOD:
Specimen is inserted in two blocking brackets and it is broken with only one oscillation of the hammer which stresses the specimen, “Dumb-bell” shaped, along its longitudinal axis.

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CHARPY/IZOD IMPACT PENDULUMS 15/25/50J

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