This specification covers weldless forged, quenched and tempered carbon steel threaded lifting eyes or eyebolts for overhead lifting. ASTM A covers two. ASTM A Standard Specification for Carbon Steel Eyebolts. Shoulder Pattern. Drop Forged Carbon Steel, Self-Colored. ASTM A Fully Threaded: UNC-2A. A. B. C. D. (Combination pricing for Eyebolts on page 4).
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Use number of nuts based on thickness of load as shown below. The lifting eyes x489 be manufactured as specified for the aztm, forging, heat treatment, and machining processes.
Alloy steel eye bolts are forged, quenched, s489 tempered with improved toughness properties, a4899 primarily for low- temperature applications. In the case of eyehooks for use with Grade M 4 chain, it may be necessary to use an intermediate component such as a shackle to make the connection. If the plane of the machinery eye bolt is not aligned with the sling line, add shims washers of proper thickness to adjust the angle of the plane of the eye to match the sling line as shown below.
Thank you for interesting in our services. Use one nut if thickness is more than one eye bolt a4489. If the eye bolt protrudes so far through the load that the nut cannot be tightened securely against the load, use properly sized washers to take up the excess space between the nut and the load as shown below. Never undercut eye bolt to seat shoulder against the load. If the hook does not go completely into the eye bolt, use a shackle to avoid loading the hook tip.
The lifting eyes shall be manufactured as specified for the melting, forging, heat treatment, and machining processes. ASTM A – 12 Standard Specification for Carbon Steel Lifting Eyes This specification covers the chemical, mechanical, grain size, and dimensional requirements for weldless forged, quenched, and tempered carbon adtm threaded lifting eyes formerly pertained to as eyebolts for overhead lifting.
Always countersink receiving hole or use washers to seat shoulder. Proper thread engagement must be maintained.
ASTM A – 18 Standard Specification for Carbon Steel Eyebolts
Eye bolts shall have a minimum design factor of astmm, based on ultimate strength. Ensure that threads on shank and receiving hole are clean.
For more information on eye bolts dimensions and swivel hoist rings different type of rings please refer General Catalog of xstm Crosby Group. Only one leg should be asym to each eye bolt. For installation, tap the load tap depth to a minimum depth of one-half the eye bolt size beyond the shank length of the machinery eye bolt.
Reeving will alter the angle of loading on the eye bolt as shown below.
ASTM A – 18e1 Standard Specification for Carbon Steel Eyebolts
It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Please copy and paste this embed script to where you want to embed Embed Script. 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. Eye Bolt Inspection Visually inspect each eye bolt before use.
ASTM A489 Specification
Link to Active This link will always route to the current Active version of the standard. Where non-shouldered eye bolts are required, they shall be used only in vertical pulls or in rigging systems that are designed, analyzed, and approved by a qualified person. When eye bolts cannot be properly seated and aligned with each other, a steel washer or spacer not to exceed one thread pitch may be required to put below the eye bolt. When more than one eye bolt is used in conjunction a4899 multiple-leg rigging, spreader bars or lifting beams should be used to eliminate angular loading.
Superfast Fasteners India Pvt. This standard does not purport to address all of the safety concerns, if any, associated with its use. Always tighten nuts securely against the load. One Response Jar Allah Says: Please help us to asstm our service with your friends.
The mechanical properties to which the lifting eyes shall adhere are proof, breaking strength, tensile stress and strength, bend strength, impact strength, yield point, elongation, and reduction of area. We need your help to maintenance this website.
This specification covers two types denoting shank pattern, and one style denoting shank length, as follows: This atsm is a brief summary of the referenced standard.