The objective of all lifting tackle standards is to provide manufacturers, users, regulatory and accrediting authorities and importers with a basis for identifying products which are safe and fit for their purpose. AS 2321 is a Standard for Grade L(3), Grade P(5), Grade T(8) and Grade V(10) short link chains for lifting purposes.

NOTE: Each chain grade is referred to by a letter or one of three numbers shown below:

(a) L, 3, 30 or 300.
(b) P, 5, 50 or 500.
(c) T, 8, 80 or 800.
(d) V, 10, 100 or 1000.

This edition includes the following changes from the previous edition:

(a) Revision to link tolerances.
(b) Revision to chain marking.
(c) Addition of Grade V(10, 100, 1000).
(d) Provision for a bend test.
(e) Delete Grades M and S.
(f) Clarification of elongation requirements.
(g) Specification of impact testing for specific Grade V materials.
(h) Cognisance of ISO 3076, Round steel short link chains for general lifting purposes— Medium tolerance slings for chain slings—Grade 8.
(i) Includes the basis for calculation of dimensions and tolerances of Grade T chain.
(j) Includes the basis for working load limit and test requirements for Grades T and V chain.

Statements expressed in mandatory terms in notes to tables are deemed to be requirements of this Standard.

The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.

Specifies requirements for non-calibrated short-link chain for lifting purposes, which is manufactured from welded round-steel short links. Originated as AS 2321-1979. Previous edition 2006. Fourth edition designated as AS 2321:2014.