Can domestic band saw use imported saw blade?

most hand saw blades are made of carbon tool steel, and most machine saw blades are made of "wind steel" (W18Cr4V, etc.). Carbon steel saw blades are cheap, and their hardness and strength are lower than those of wind steel, so they are not as durable as wind steel. Saw blades are universal in most cases, so there is no need to choose them. However, for materials with higher hardness, it is still appropriate to choose wind steel saw blades. T7 and T7A sub-* * steel precipitation. It has good plasticity, toughness and strength, and a certain hardness, and can bear vibration and impact loads, but its cutting ability is poor. It is used to manufacture tools that bear little impact load and require proper hardness, wear resistance and good toughness, such as forging dies, chisels, hammers, punches, metal shears, reamers, steel seals, woodworking tools, pneumatic tools, machine tool tips, fitter tools, drilling tools and blunt medical appliances. T8, T8A *** steel analysis. When quenching and heating, it is easy to overheat, with large deformation and low plasticity and strength, so it is not suitable to manufacture tools that bear large impact, but it has high hardness and wear resistance after heat treatment. It is used to make tools with cutting edges that don't become hot when working, such as woodworking tools, pneumatic tools, benchwork tools, simple dies, rivet dies, central hole chisels and dies, tools for cutting steel, bearings, cutters, aluminum-tin alloy die-casting plates and cores, and various springs. T8Mn, T8MnA *** steel analysis. It has high hardenability and hardness, but low plasticity and strength. It is used to manufacture woodworkers, hand saws, engraving tools, rivet dies, clockwork, band saws, circular saws, chisels for coal mines, chisels for masonry, etc. T9 and T9A undergo * * * steel precipitation. It has high hardness, but low plasticity and strength. It is used to manufacture various tiger tools with high hardness and certain toughness, such as engraving tools, rivet dies, press dies, punches, carpenters, home machine cutting parts, drilling tools and shunt nails of molds. T1 and T1A undergo * * * steel analysis. Fine grains, which will not overheat when quenching and heating (the temperature reaches 8℃), and can still maintain fine grain structure; There are undissolved excess carbides in quenched steel, so it has higher wear resistance than T8 and T8A steel, but lower toughness. Tools for manufacturing cutting edges that do not become hot when working, tools with sharp cutting edges and a little toughness that do not bear impact load, such as wood processing tools, hand cross saws, hand joinery tools, machine joinery tools, machine joinery tools, twist drills, wire drawing dies, stamping dies, cold heading dies, screwdrivers, reaming tools, thread washers, turning tools, planers, milling cutters, currency dies, etc. T11 and T11A undergo * * * steel precipitation. It has better comprehensive mechanical properties (such as hardness, wear resistance and toughness, etc.), finer grains and less sensitivity to the formation of carbide network when heated. T12 and T12A, which are used to manufacture tools with cutting edges that don't become hot when working, such as saws, chisels, taps, files, scrapers, clockwork, gauges, reamers, dies, tobacco cutting tools, cold dies with small size and no sharp change in cross section, and woodworking tools, are subjected to steel analysis. Because of the high carbon content, there are still more surplus carbides after quenching, so the hardness and wear resistance are high, but the toughness is low and the quenching deformation is large. It is not suitable for manufacturing tools with high cutting speed and impact load. It is used to manufacture tools that are free from impact load, have low cutting speed and the cutting edge is not heated, such as turning tools, milling cutters, drills, reamers, reamers, taps, dies, scrapers, gauges, blades, small punches, steel files, saws, clockwork, tobacco cutting tools, and cold trimming dies and punching dies with small cross sections. T13 and T13A undergo * * * steel precipitation. Because of the high carbon content, there are more excess carbides after quenching, so the hardness is higher and the toughness is worse; Moreover, because the number of carbides increases and the distribution is uneven, the mechanical properties are poor. It is not suitable for manufacturing cutting tools with impact load and high speed. It is used to manufacture metal cutting tools that are not subject to impact load but require extremely high hardness, such as razors, scrapers, wire drawing tools, files, engraving tools, drills, hard rock processing tools and engraving tools. High-speed steel 1. Overview High-speed steel, also known as wind steel or front steel, means that it can be hardened even if it is cooled in air during quenching, and it is very sharp. It is a kind of alloy steel with complex composition, which contains carbide forming elements such as tungsten, molybdenum, chromium and vanadium. The total amount of alloying elements is about 1 ~ 25%. It can still maintain high hardness under the condition of high heat caused by high-speed cutting (about 5℃), and the HRC can be above 6. This is the main characteristic of high-speed steel-red hardness. Although carbon tool steel has a high hardness at room temperature after quenching and tempering at low temperature, when the temperature is higher than 2℃, the hardness drops sharply, and at 5℃, the hardness is similar to that of annealed state, and the ability to cut metal is completely lost, which limits the use of carbon tool steel for making cutting tools. High-speed steel can make up for the fatal shortcomings of carbon tool steel because of its good red hardness, and can be used to manufacture cutting tools. The heat treatment process of high-speed steel is complicated, and it must go through a series of processes such as annealing, quenching and tempering. The purpose of annealing is to eliminate stress, reduce hardness, make microstructure uniform and facilitate quenching. The annealing temperature is generally 86 ~ 88℃. Quenching is generally carried out in two stages because of its poor thermal conductivity. First preheat at 8 ~ 85℃ (to avoid causing large thermal stress), then quickly heat to the quenching temperature of 122 ~ 125℃, and then oil cool. All factories use salt stoves for heating. After quenching, a part (about 3%) of retained austenite is not transformed into martensite due to internal structure, which affects the properties of high speed steel. In order to transform the retained austenite and further improve the hardness and wear resistance, it is generally necessary to temper for 2 ~ 3 times at a tempering temperature of 56℃ for 1 hour each time. (1) Manufacturing method: Electric furnace is usually used to produce high-speed steel. Recently, powder metallurgy method was used to produce high-speed steel, so that carbides are evenly distributed on the matrix in extremely fine particles, which improves the service life. (2) Application: used for manufacturing various cutting tools. Such as turning tools, cobalt heads, hobs, machine saw blades and demanding molds. 2. Main production plants Dalian Steel Plant, Chongqing Steel Plant and Shanghai Steel Plant are the main production plants for high-speed steel. 3. Main importing and producing countries China mainly imports from Japan, Russia, Germany, Brazil and other countries.