High-speed steel material is a kind of manufacturing materials obtained after quenching du tempering by melting and other methods, because the ratio of materials is not the same, different high-speed steel materials will be obtained, high-speed steel has good process performance, strength and toughness, so it is mainly used to manufacture complex thin edge and impact resistant metal cutting tools. Commonly used circular saw blades are M42, M5, M6, super A, M2 and other materials, in order to distinguish so separate. Recently, I received a customer consultation on what is the difference between M42 and M5 saw blades?
High-speed steel circular saw blade M42 is molybdenum high carbon cobalt superhard high-speed tool steel, high hardness, up to 67HRC, good thermal hardness, high temperature hardness, easy to grind, this material is very suitable for the production of high-speed steel circular saw blade, with the steel made of high-speed steel circular saw blade, can cut iron based superalloy, casting superalloy, titanium alloy and ultra-high strength steel, but the toughness is slightly poor, The lower limit of temperature should be used during quenching. Because of its good grinding performance, it can be used to manufacture high-speed steel circular saw blades and high-precision complex tools.
The high-speed steel disc saw blade M5 is a hardened bai hard plastic mold steel, quenched du tempering after high hardness and wear resistance, but the heat hardness is low, poor hardenability, easy deformation, plasticity and strength is low, used as a variety of tools that need to have high hardness and wear resistance, such as: Simple moulds and punches, metal cutting tools, drilling tools, woodworking milling cutters, countersunk drills, axes, chisels, longitudinal hand saws, and secondary tools such as fitters' assembly tools and rivet dies.
In fact, the material of the circular saw blade can not be compared in this way, because the material of the saw blade is made according to the cutting material, different cutting materials if the same saw blade is used to cut, the cutting effect will certainly be different, the manufacturer often recommends customers to special saw, so there are so many choices
