Stretch of Welded Chain
Stretch of Welded Chain
(OP)
Anybody have a resource/information on how to accurately determine the elongation/stretch of welded chain (specifically Gr80 Allow chain, but I am open to anything) under a certain load? I guess I am looking for some sort of effective area / modulus similar to how you calculate cable stretch but thus far have come up empty.






RE: Stretch of Welded Chain
I don't have anything on that. Google search?
RE: Stretch of Welded Chain
RE: Stretch of Welded Chain
RE: Stretch of Welded Chain
see NACM_Welded
GR80 uses ASTM Specification A391
https://law.resource.org/pub/us/cfr/ibr/003/astm.a...
RE: Stretch of Welded Chain
RE: Stretch of Welded Chain
Chain properties are given on page 236 of the catalog. If you need more info I'd call Crosby Tech Support.
Link
Regards,
DB
RE: Stretch of Welded Chain
Further, if any chain link has a casting "flaw" or machined irregularity/remnant/flaw so the "perfect" loop is distorted by that bump, then under load the difference in length may not be chain stretch but just the rough spots getting smoothed out.
RE: Stretch of Welded Chain
RE: Stretch of Welded Chain