jack hollingsworth Posted November 8, 2009 Share Posted November 8, 2009 G'day, at my work there are a few lengths of "spring steel" flat bar that were left over from a job.. The boss said its 1447 or just "spring steel"... does this sound right to you guys? Ive had a look at this link and others: Steel designations and common steel compositions - British Blades :: Custom Knife Making would it be 1(plain carbon) 4 (4 alloying elements or is it Molybdenum) and 0.47 percent carbon? I'm no expert on spark testing but its a whole lot different to mild steel and similar to when i sharpen my chisel (bench grinding). any thoughts guys? are the numbers a bit mixed up? Quote Link to comment Share on other sites More sharing options...
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