ASTM A489 Standard Specification for Carbon Steel Lifting Eyes
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- Картотека зарубежных и международных стандартов
ASTM International
Standard Specification for Carbon Steel Lifting Eyes
N A489
Annotation
This specification covers weldless forged, quenched, and tempered carbon steel threaded lifting eyes (formerly eyebolts) for overhead lifting.
NOTE 1—Lifting eyes carrying this specification number even though they are liquid quenched and tempered may be processed from carbon steel which, in the composition range permitted by this specification, could have a fracture appearance transition temperature (50 % shear) higher than operating temperatures. Therefore, in order to minimize the possibility of a brittle cleavage failure, these lifting eyes should never be loaded above the proof load, and should not be used when surface discontinuities exist on the lifting eyes.
The specification includes two types denoting shank pattern and one style denoting shank length (both defined in ASME B 18.15) as follows:
Type 1—Plain pattern (straight shank).
Type 2—Shoulder pattern.
Style B—Short length.
The values stated in inch-pound units are to be regarded as the standard. The SI values given in parentheses are for information only.
Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
*A Summary of Changes section appears at the end of this standard.
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