Originally Posted by Cheechako
This is pretty interesting from that site: "..Every sample achieved the required strength for its grade but it was noticeable that every Chinese Grade 30 chain, with one exception, delivered the strength of a Grade 40.
The result suggests that steels used for Grade 40, typical of constructional steels, are more readily obtainable in China
than the lower carbon steel
used for Grade 30."
If this is an independent finding it is valuable but it has a striking resemblance to a finding by YM of chains they tested about 12 months ago but I vaguely recall
sampled 12-18 months prior the tests. Try Vyv Cox website (coxengineering?) Tests conducted in NZ might contradict these findings - try Chains, Ropes and Anchors. I'm not that motivated to consider Chinese so results are not that important to me (I might be tempted come the time), I prefer locally made, here PWB, Serafini; Europe
Maggi; US, Campbell, Peerless and Proof Tested. I think maybe there are few other European chain makers still making. But I am sure CMP chain ought be good, pending results showing otherwise.
There are 2 interpretations - 1, the Chinese are over engineering or 2, the Chinese are using whatever is in excess supply.