AS 3776-1990

1 - AS 3776-1990 LIFTING COMPONENTS FOR GRADE T CHAIN SLINGS
4 - PREFACE
5 - CONTENTS
5 - FOREWORD
6 - 1 SCOPE.
6 - 2 REFERENCED DOCUMENTS.
6 - 3 DEFINITIONS.
6 - 3.1 Competent person
6 - 3.2 Self-coloured
6 - 3.3 Shall
6 - 3.4 Should
6 - 3.5 Statutory Authority
6 - 3.6 Working load.
6 - 3.6.1 Working load limit (WLL)
6 - 3.6.2 Safe working load (SWL)
6 - 3.7 Nominal size (of lifting component)
7 - 3.8 Chain sling
7 - 3.9 Lifting component
7 - 3.9.1 Clevis
7 - 3.9.2 intermediate link
7 - 3.9.3 Joining device
7 - 3.9.4 Lower terminal fitting
7 - 3.9.5 Multilink assembly
8 - 3.9.6 Upper terminal fitting
8 - 3.9.7 Shortening clutch (or hook)
9 - 4 DIMENSIONS.
9 - 4.1 General.
9 - 4.2 Lower terminal fitting.
9 - 4.3 Upper terminal links.
9 - 4.4 Joining devices.
9 - 4.5 Attached chains.
9 - 4.6 Clevises on chain components.
10 - 5 MATERIAL.
10 - 6 MANUFACTURE.
10 - 6.1 Forgings.
10 - 6.2 Heat treatment.
10 - 6.3 Surface finish.
10 - 6.4 Load pin retention.
11 - 7 MECHANICAL PROPERTIES.
11 - 7.1 Permanent set.
11 - 7.2 Strength.
11 - 7.3 Strength of clevis pin.
11 - 7.4 Ductility.
11 - 8 MARKING.
11 - 8.1 General.
11 - 8.2 Si ze.
11 - 8.3 Information.
12 - 9 TESTING OF MECHANICAL PROPERTIES.
12 - 10 PROOF TESTING.
12 - 10.1 Proof loading.
12 - 10.2 Requi rements.
12 - 10.3 Test certificate.
13 - APPENDIX A - INFORMATION THAT SHOULD BE SUPPLIED WITH ENQUIRIES AND ORDERS
13 - APPENDIX B - DETERMINATION OF SAFE WORKING LOAD
14 - APPENDIX C - CHAINS
15 - APPENDIX D - CONDITIONS FOR APPLICATION OF TEST FORCES
16 - APPENDIX E - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
16 - E1 SCOPE.
16 - E2 STATISTICAL SAMPLING.
16 - E3 PRODUCT CERTIFICATION-STANDARDSMARK.
16 - E4 SUPPLIER’S QUALITY SYSTEM.
16 - E5 OTHER MEANS OF ASSESSMENT.

Specifies requirements for design, manufacture, marking, and testing of forged lifting components for use in chain sling assemblies complying with AS 3775 with corresponding sizes of Grade T chain complying with AS 2321. The components include hooks with eyes, clevises or other joining devices, mechanical connecting devices, and any other terminal fittings used in a lifting system based on Grade T chain. The Standard does not apply to welded components other than welded master links, welded multilink assemblies, welded joining links, or components subject to an existing Australian Standard. Typical types are illustrated. Guidance on information to be supplied with enquiries and orders is given in an appendix.

This Standard specifies requirements for forged lifting components for use in chain sling assemblies with corresponding sizes of Grade T chain complying with AS 2321. The components include hooks with eyes, clevises and other joining devices, mechanical connecting devices, and any other terminal fittings used in a lifting system based on Grade T chain. This Standard does not apply to welded components other than welded master links, welded multilink assemblies, welded joining links, or components subject to an existing Australian Standard.NOTES:1. AS 2321 specifies chain in terms of the ISO quality grade designation system. The ISO system also permits Grade T to be designated as Grade 8.2. Guidance on information that should be supplied with enquiries and orders is given in Appendix A.