BS ISO 4778:2019
$142.49
Round steel short link chains for lifting purposes. Chain slings of welded construction. Grade 8
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 34 |
This document specifies the requirements, methods of rating and testing of single, double, three and four leg welded chain slings of grade 8 using components such as sling chains according to ISO 3076together with links according to ISO 16798, hooks according to ISO 7597and forged components according to ISO 8539.
For special lifting purposes not covered by this document, additionally intermediate links can be used, for example to connect components to each other having different working load limit.
The range of nominal diameter, dn, covered by this document is from 4 mm to 45 mm.
Chain slings according to this document are for use in the temperature range –40 °C to +400 °C according to ISO 3056.
Concerning the use and maintenance of chain slings of grade 8, see ISO 3056 .
Chain slings according to this document comply with the general conditions of acceptance of ISO 1834and are used for symmetrically distributed loads only.
For rating of chain slings with asymmetrically distributed loads, see ISO 3056 .
This document does not apply to mechanically joined chain slings.
For mechanically joined chain slings, see ISO 7593 .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Requirements 4.1 Chain sling |
| 10 | 4.2 Components 4.2.1 Chain legs 4.2.2 Master links 4.2.3 Intermediate master links, joining links and end links |
| 11 | 4.2.4 Hooks 4.2.5 Other forged components 4.3 Working load limit (WLL) |
| 12 | 4.4 Mechanical requirements 4.4.1 General |
| 13 | 4.4.2 Single leg chain sling |
| 14 | 4.4.3 Double leg chain sling |
| 15 | 4.4.4 Three and four leg chain sling |
| 16 | 5 Marking 5.1 General 5.2 Single leg chain sling 5.3 Double leg chain sling |
| 17 | 5.4 Three and four leg chain sling 6 Manufacturer’s certificate 7 Examples of chain slings |
| 22 | Annex A (informative) Bases for calculation |
| 26 | Annex B (informative) Correlations, grade 8 |
| 28 | Annex C (informative) Compatibility of chain slings to shank hooks |
| 30 | Annex D (informative) Information for the calculation of the nominal diameter of links |
| 32 | Bibliography |
