CHARPY IMPACT TEST

Charpy impact test method for metallic materials is specified by European EN 10045 standard. This specification defines terms, dimension and tolerances of test pieces, type of the notch (U or V), test force, verification of impact testing machines etc. The test consists of breaking by one blow from a swinging pendulum, under conditions defined by standard, a test piece notched in the middle and supported at each end. The energy absorbed is determined in joules. This absorbed energy is a measure of the impact strength of the material.

For certain particular metallic materials and applications, Charpy impact test may be the subject of specific standards and particular requirements. The test consists of breaking by one blow from a swinging pendulum, under conditions defined by standard, a test piece notched in the middle and supported at each end. The energy absorbed is determined in joules. This absorbed energy is a measure of the impact strength of the material.

National standards corresponding to

EN 10045-2 are DIN 51306 (1983), BS 131 Part 4 (1972) and international ISO 442 (1965).


 

Standards

ASTM E23-02 Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
ASTM D256-02 Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
ASTM D1822-99 Standard Test Method for Tensile-Impact Energy to Break Plastics and Electrical Insulating Materials
DIN EN ISO 180 Plastics - Determination of Izod impact strength
DIN EN ISO 179-1 Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact test
DIN EN ISO 179-2 Plastics - Determination of Charpy impact properties - Part 2: Instrumented impact test
DIN EN ISO 8256 Plastics - Determination of tensile-impact strength
DIN EN 10045-1 Charpy impact test on metallic materials; part 1: test method
DIN EN 10045-2 Metallic materials; Charpy impact test; part 2: verification of the testing machine (pendulum impact)

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