AS 2321-1979被替代
Short-link chain for lifting purposes (non-calibrated)
出版：Standards Australia
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基本信息
标准编号： AS 2321-1979
标准类别：Standard
出版单位：Standards Australia
标准页数：20
标准简介
Specifies manufacture and performance, materials, dimensions and mechanical properties of electrically welded round steel short-link chain, together with the requirements for testing, inspection and marking and the provision of test certificates. The system of classification for the ISO quality grades is the single system type using letters. Appendices provide guidance on finishes other than self-coloured, instruments for measuring the mean diameter of chain links, and requirements for chain testing machines.
