Higher hardness and medium wear resistance. When grinding, its disadvantage is that it is relatively viscous and heats up quickly. It is recommended to use chrome corundum or microcrystalline corundum grinding wheels for grinding.
The annealing temperature of 440C is very low. When it is used as a tool and bearing for heat treatment, the hardness can usually reach HRC57-59. If it is subjected to cryogenic treatment, the hardness can reach HRC59-61.
Used to make blades, it has strong corrosion resistance and toughness, and is now more widely used in hand-made knives and high-quality factory-made knives.
Round knives are divided into flat round knives, toothed round knives, front steel round knives, alloy round knives, etc. Large circular blade, large circular knife, circular knife, circular knife, small circular knife, general circular blade diameter: ∮300-1000mm, thickness 0.5-300mm; folding machine circular knife, front steel cutting machine circular knife, stone brocade Tile round blade, slitting machine circular knife, slitting upper knife and lower knife, carbide slitting circular knife, carton dotted line slitting circular knife, dotted line circular blade, paper cutter circular knife, pulverizer circular knife , cutting rubber round knife, cutting leather round knife and so on.
The slitting blade is mainly used for slitting paper, film, gold, silver foil, aluminum foil, copper foil, magnetic tape, etc. The blade is required to have the least cutting resistance and the highest wear resistance. Due to the requirement for product precision, cutting tools must sometimes achieve micron-level precision.
