Ray Kirk at rakerknives also has 15n20 for sale. HE has it listed on his website and will also sell you bigger pieces that you can cut whatever size you want. his material is band saw material that never got the teeth put on it. Mike
You can see it but just barely. When you cut through the cable to ladder it , it just brings some of the other wires to the top and doesn't show up very well.
Check out Ray Kirks site for 15n20. He has some 4 and 6 inch wide that he sheers to width for you or you can buy larger pieces. he found some unworked 15n20 that hadn't been made into saw blades yet. Nice stuff. check him out at Raker Knives & Steel Mike
Never heard of any that is in rod or square. A chance you can get some L6 or their equivalent from Admiral steel. Almost the same amount of nickel as the 15n20. Only thing that I know of. Mike
mcraig the only thing I would add is go to ELLIS'and get you a ceramic platten to glue to yours. you wont believe how much difference it will make to grind on.Mike
Ray Kirk has somethat is virgin material. IT is 4or 6 inch wide material that never had the teeth put on it yet. He has it cut in certain sizes or will sell you a larger piece.
Couple of different ideals is to use a carpenters pencil and mark where you do not want the solder. Solder will not stick to graphite. I also have some yellow ochre powder that you make a paste with and paint on areas you do not want the solder to go. it is available from Jantz Knife Supply.
From your other post with just the scales on it - this doesn't do justice to them until you show them on this nice knife. Makes beautiful handles doesn' it