What is ISO 4778 - Chain slings of welded construction about ?
ISO 4778 specifies the requirements, methods of rating and testing of single, double, three and four legs welded chain slings of grade 8 using components such as sling chains according to ISO 3076 together with links according to ISO 16798, hooks according to ISO 7597, and forged components according to ISO 8539. The range of nominal diameter, d n, covered by ISO 4778 is from 4 mm to 45 mm. Chain slings according to ISO 4778 are for use in the temperature range –40 °C to +400 °C according to ISO 3056 .
Chain slings according to ISO 4778 comply with the gener...