Quote:
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."
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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.
Jonathan