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Impact Testing

Impact Testing

A Charpy impact test measures the amount of energy absorbed by a material, and its resistance to brittle fracture during fracture.

A pendulum arm is used to strike a metallic sample with a weight from a known height. After impact from the weight, the samples are analyzed for energy absorption and ductility characteristics. 

Charpy tests may be conducted at ambient or at low temperatures


Common Standards:

ASTM International

ASTM A327, ASTM A370, ASTM A673, ASTM E 23,

International Organization for Standardization

ISO 83, ISO 148-1

Military specification

MIL-S- 901D 

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