Aiden CC Posted March 7 Share Posted March 7 I have been experimenting with pattern welding using hearth steel, but I’ve been finding that I don’t quite get the contrast I might want using just low and high carbon material, so I want to start playing with phosphorus iron. I have a variety of different old iron sources I want to try and use and my first question is about trying to identify high P iron, ideally without sending it off to a lab (though if that ends up being the case, I may do that). I have heard that nails from the Globe Elevator may be high in phosphorus and it seems like there might be some evidence for that. The nails break when struck in a vise with no notch and generally have very little ductility. Would that be how phosphorus induced cold shortness might manifest in wrought iron? The material also does not seem to take up carbon well in a hearth, as the pucks start out sparking/hardening well and then lose it after a few folds. I have tons of pieces of hearth material that have behaved this way, is there some “in-shop” test I could use on material like this? Another thought I’ve had is trying to get a source of feedstock with a known phosphorus content. Are there any common modern alloys that might work for this? All I’ve been able to find is ferrophosphorus, which seems like one of those things that you need to buy 5 tons of, and phosphorus calibration standards which don’t have a listed price, but I imagine would be incredibly expensive. Any thought here would be appreciated, if I have to send some pieces out for testing, so be it, but I figured it would be good to check here first! Link to comment Share on other sites More sharing options...
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