BartW Posted April 15, 2021 Share Posted April 15, 2021 Those RR clips (springy, like simple 1084 steel) in the video above are not the same as a pandrol E-clip (high manganese, high silicon 5160 steel). Quote Link to comment Share on other sites More sharing options...
JHCC Posted April 15, 2021 Author Share Posted April 15, 2021 High silicon, to be sure (1.40-2.00, depending on the specific alloy), while 5160 is 0.15-0.30. However (according to the info I found online and posted above), Pandrol e-clips have a manganese content from 0.40-0.90 (again, depending on the alloy), while 5160 is 0.750-1.00. Or am I missing something? Quote Link to comment Share on other sites More sharing options...
BartW Posted April 15, 2021 Share Posted April 15, 2021 That's what I was told by someone who works for the railroads and does metallurgy. But I know these things can vary a lot and it wouldn't suprise me to have different standard in the USA compared to the EU. But on the other hand; they are basically springs. Quote Link to comment Share on other sites More sharing options...
JHCC Posted April 15, 2021 Author Share Posted April 15, 2021 In the case of the info I posted above, those clips are manufactured in China to conform to European standards. But yes: basically springs. I gather that the higher silicon content is to increase strength and hardenability, and I suspect that this is a way to get better durability without the greater risk of stress cracking that would come with a higher carbon content. That's just a guess, though; I'm no metallurgist. Quote Link to comment Share on other sites More sharing options...
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