Lysdexik Posted December 8, 2008 Share Posted December 8, 2008 I have seen a few RFI (request for information) posts about different types of "gleaned" steel, does anybody know what the ram on hydraulic cylinders is made of? I have a bunch of them, all sizes, and the way that stuff takes a polish, I think it must be prety hard, and the stresses they go through, they must be prety tough too. I am going to need to make set tools, and hardie tools, so would this do? Paul. It's not over...Untill we Win!!! I also have a bunch (like 7000#) of tool shanks for asphalt grinders made by Kenametal, and lots of drops/disks from makeing screens, for the same equipment, these are AR Q90, about 2 1/2" around what could I make out of these? Quote Link to comment Share on other sites More sharing options...
ptree Posted December 8, 2008 Share Posted December 8, 2008 Most cylinders, both hydraulic and pnuematic, at least on the decent ones are IHCP. This is Induction Hardened Chrome plated. I believe the steel is medium carbon, modified for induction case and core heat treat. To use one would need to remove the hard chrome and then go to town. I would quench in oil, temper to straw as these fast hardening steels for induction will crack very easily in water. Also I would avoid holding above the critical temp, as grain growth may be an issue. Quote Link to comment Share on other sites More sharing options...
Shane Stegmeier Posted December 10, 2008 Share Posted December 10, 2008 Again for what it is worth I had a client who made shafts for cyclinders and I think he said the bulk of the ones his company did were 1045 or stainless... I think the grinder tool shanks are more promising... As I have on fine third hand knowledge;-) the teeth are tungsten, and the shank is S7 is what I have heard (for what that is worth;-) But a freind of mine made a really nice punch out of one so it might be S7 and excellent for hot work tools;-) I think you could spare a few pounds to try... and have a really nice gift for your freinds, or a good source of trade items;-) Quote Link to comment Share on other sites More sharing options...
Warren Nakkela Posted December 23, 2008 Share Posted December 23, 2008 Some time ago I made some pipe notching dies from a 2 1/2inch cylinder rod from a dump truck that had been bent. I am pretty sure that it was 4140 chrome moly steel. The job turned out well and have since learned that this steel is commonly used in cylinder where compressive strength is important. Warren Quote Link to comment Share on other sites More sharing options...
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