ASME B30.26-2010

Chapter 26-1
Shackles ¡ª Selection, Use, and Maintenance

SECTION 26-1.0: SCOPE 26-1.4.2 Proof Load Requirements (10)

This Chapter applies to shackles. (a) The proof load for a shackle up to and including
a 150 ton (136 metric ton) rated load shall be a minimum
of 2 and a maximum of 2.2 times the rated load unless
SECTION 26-1.1: TYPES AND MATERIALS approved by the manufacturer.
26-1.1.1 Types (b) The proof load for a shackle over a 150 ton (136
metric ton) rated load shall be a minimum of 1.33 and
(a) Body types covered are anchor, chain, and syn- a maximum of 2 times the rated load unless approved
thetic sling (see Fig. 26-1.1.1-1). by the manufacturer.
(b) Pin types covered are screw pin and bolt type (see
Fig. 26-1.1.1-1).
SECTION 26-1.5: IDENTIFICATION
(c) Shackles other than those detailed in this chapter
shall be used only in accordance with recommendations 26-1.5.1 Shackle Body Identification
of the shackle manufacturer or a qualified person. Each new shackle body shall have forged, cast, or

NOTE: Round pin shackles are not covered by the scope of this diestamped markings by the manufacturer to show
volume, because they have limited application in lifting. They are (a) name or trademark of manufacturer
only restrained by a cotter pin and may present a hazard in odd (b) rated load
angle loading conditions. (c) size

26-1.1.2 Materials 26-1.5.2 Shackle Pin Identification

The shackle shall have sufficient ductility to perma- Each new shackle pin shall have forged, cast, or
nently deform before losing the ability to support the diestamped markings by the manufacturer to show
load at the temperatures at which the manufacturer has (a) name or trademark of manufacturer
specified for use. (b) grade, material type, or load rating

26-1.5.3 Maintenance of Identification
(10) SECTION 26-1.2: DESIGN FACTOR
Shackle identification should be maintained by the
(a) The design factor for shackles up to and including user so as to be legible throughout the life of the shackle.
a 150 ton (136 metric ton) rated load shall be a minimum
of 5.
SECTION 26-1.6: EFFECTS OF ENVIRONMENT
(b) The design factor for shackles over 150 ton (136
metric ton) rated load shall be a minimum of 4. 26-1.6.1 Temperature

When shackles are to be used at temperatures above
400¡ãF (204¡ãC) or below ?40¡ãF (?40¡ãC), the shackle manu-
SECTION 26-1.3: RATED LOADS
facturer or a qualified person should be consulted.
Rated load shall be in accordance with the recommen-
26-1.6.2 Chemically Active Environments
dation of the shackle manufacturer. The terms ¡°rated
capacity¡± and ¡°working load limit¡± are commonly used The strength of shackles can be affected by chemically
to describe rated load. active environments, such as caustic or acid substances
or fumes. The shackle manufacturer or a qualified per-
son should be consulted before shackles are used in
SECTION 26-1.4: PROOF TEST chemically active environments.

26-1.4.1 Proof Test Requirements
SECTION 26-1.7: TRAINING
(a) Shackles are not required to be proof tested unless
specified by the purchaser. Shackle users shall be trained in the selection, inspec-
(b) If proof tested, a shackle shall be inspected after tion, cautions to personnel, effects of environment, and
the test for the conditions stated in para. 26-1.8.4. rigging practices as covered by this Chapter.

ASME B30.26

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