Fish Vintage Soviet Folding Pocket Knife for
Fishing Hunting USSR 1970s
9ХФ - steel, in which the carbon content is 0.9%. Chromium alloying element - increases wear resistance and corrosion resistance. Vanadium gives steel hardness and strength. Products made of 9xф are practically not subject to corrosion, regardless of environmental conditions. Despite the elasticity of 9xф, it has more than decent Rockwell hardness, HRC = 63, not every steel can boast. Most often, drills, milling cutters, taps and dies for threading, reamers, combs and other parts of industrial equipment and machines, also brand 9xф is used for the production of files and other hand tools of increased wear resistance.