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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Proper thread engagement must be maintained. Material, Specification and Marking Eye bolts are made from forged carbon steel or alloy steel. 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.
Use number of nuts based on thickness of x489 as shown below.
ASTM A – Free Download PDF
Use one nut if thickness is more than one eye bolt diameter. Please help us to share our service with your friends. I Washers Manufacture of D.
We need your help! Eye Bolt Inspection Visually inspect each eye bolt before use. Link to Active This link will always route to the current Active version of the standard. Type 1, plain pattern straight shank ; Type 2, shoulder pattern; and Style B, short length. 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 steel threaded lifting eyes formerly pertained to as eyebolts for overhead lifting.
In case two or more than two eye bolts are used without spreader bars, their orientation shall be such that load is in the plane of the eyes as shown below Orientation of eye bolts. Never undercut eye bolt to seat shoulder against the load. September 18th, at No other units of measurement are included in this standard.
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.
ASTM A489 Specification
Please copy and paste this embed script to where you want to embed Embed Script. Please fill this form, we will try to respond as soon as possible. Sketches in this article are based on sketches in A4889 Catalogue by Crosby Group.
This standard does not purport to adtm all of the safety concerns, if any, associated with its use. 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. 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.
When more than one eye bolt is used in conjunction with multiple-leg rigging, spreader bars or lifting beams should be used to eliminate angular loading. One Response Jar Allah Says: The mechanical properties to which the lifting eyes shall adhere are proof, breaking strength, tensile stress and strength, bend xstm, impact strength, yield point, elongation, and reduction of area.
Therefore, in order to minimize the possibility of a brittle cleavage failure, ast, lifting eyes should never be loaded above the proof load, and should not be used when surface discontinuities exist on the lifting eyes. Reeving will alter the angle of loading on the eye bolt as shown below.
Superfast Fasteners India Pvt. Type 1, plain pattern straight shank ; Type a89, shoulder pattern; and Style B, short length.
If the hook does not go completely into the eye bolt, use a shackle to avoid loading the hook tip. Historical Version s – view previous versions of standard. This specification covers two types denoting shank pattern, and one style denoting shank atsm, as follows: Size px x x x x For vertical loading, eye bolts without shoulders have the same load-carrying ability as shouldered eye bolts.
The lifting eyes shall be manufactured as specified for the melting, forging, heat treatment, and machining processes. For more information on eye bolts dimensions and swivel hoist rings different type of rings please refer General Catalog of the Crosby Group. We need your help to maintenance this website. Always tighten nuts securely against the load. Reeving s489 Sling Slings shall not be reeved through an eye bolt or reeved through a pair of eye bolts.
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ASTM A – 00 Standard Specification for Carbon Steel Lifting Eyes
Thank you for interesting in our services. It is informational only and q489 an official part of the standard; the full text of the standard itself must be referred to for its use satm application. 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. Installation for In-line Loading For in-line loading application use regular nut eye bolt or shoulder nut eye bolt.
Application It is recommended to use shouldered eye bolts for rigging hardware, except when prohibited by the configuration of the item to which the eye bolt is attached.