JD straw chopper blade material?

Frank Hunter

Well-Known Member
I have a source for many John Deere straw chopper blades. They're used and worn into pretty much a knife like shape already. The only steel I've seen them listed as is 4140...anyone have further information? Some of my smaller patterns fit inside the perimeter nicely, including the large bolt hole which ends up near the butt of the handle. I wouldn't be making any high-dollar mirror finished pieces out of them and known steels are cheap enough...just hate to scrap them.
 
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