By Golden Spider2013-8-23 11:19:29
It is reported that in the New Year’s January 15, ISO published ISO 898-1:2013 “fasteners made of carbon steel and alloy steel mechanical properties – Part 1: Performance level required bolts, screws and studs Coarse thread and fine thread. ” Last year I had translated the British Federation of forging fasteners expert John? Newnham’s article about the upcoming new version of this time last year, was finally published.
The ISO 898-1 of the 2013 version and 2009 version as well as GB / T 3098-1:2010 than not technical changes, but slightly modified, so modest changes.
The first is the addition of two terms and definitions section:
First, thin rod fasteners: shaft diameter ds ≈ d2 finished fasteners. Increase this provision means that the full carrying capacity of the fastener, reflected in the wedge tensile testing load testing or in-kind technical requirements are different, par fasteners, namely dS> d2, the fracture should not screwed thread length; fastener shank, the dS ≈ d2, the fracture should not screwed in the threaded or non-threaded rod length portion. 2009 edition is such a requirement, and GB / T 3098.1-2010 is no such distinction, this is only the expression: fasteners should be broken without screwing the threaded or non-threaded rod length department. This reduces the requirements of the standard rod fasteners. (…)
via Fastener specialist Wangwei Wu analyzed 2013 new ISO 898-1-China Standard Parts.