What you should know when choosing a knife of steel RWL – 34
Today we decided to write a short review on steel RWL-34.Not many people understand why we decided to choose this type of steel, but it is actually just the steel RWL-34 is a popular brand overseas. This steel is often used in the manufacture of blades, and this is not surprising, as it has a number of positive aspects.
This type of steel began producing in the fifties, and it was intended for the production of heat-resistant bearings, the advantage of this steel was even higher than that of steel under the trademark 440. Only in the late seventies the steel began to move into the manufacture of knives, it was a significant advantage relative to 440C steel.
Let’s move on to the familiarity with the steel under the brand name of the RWL-34. Is this steel on the individual powder technology, which is patented by the Swedish company Damasteel AB. Access steel exists as individual rental and the composition of corrosion damaska RSM-27 manufactured by the same company. If you start to give a comparison with steel is 440C, then it is possible to detect that the majority of chromium was just replaced with molybdenum.
Overall, this leads only to the fact that the composition is less than the carbides brand me7s3, but instead was the completion me23s6. These carbides, which were previously enriched with molybdenum, are less prone to coagulation, and consequently the producers appear able to carry out additional treatment on the hardness of the steel.
The closest analogue is given by us steel is CPM154, which is the same method of creation, but rather using the powder technology. Just wanted to mention the point that direct analogues of the following is the steel has not. In the production of steel with powder technology, it provides only a small carbide heterogeneity that in General it is possible to determine the increase in mechanical properties, and more specifically it relates to strength, while viscosity decreases by almost half. Also, you notice that significantly increase the properties of anti-corrosion and grinding.
In the hardening of the classical method of total hardness of the steel will be driven largely by the hardness of the martensite, respectively, with similar quenching is fixed to a certain portion of carbon, in this case to repeat the treatment the hardness will be extremely difficult. The initial part can be given to an identical during heating for quenching formed phase recrystallization, respectively, in connection with the dissolution of a certain part of the carbides and the solid solution begins to be saturated with carbon and other alloying elements.
After that, the experts are engaged in the cooling of the solid solution, in the end, the steel begins to acquire the General structure of martensite plus, of course, the residual carbides. The whole process in General, steel works can not be attributed to the easy type, as it professionals should work for a long period of time, and to comply with all of the characteristic rules.
After the above processing starts to happen the most interesting and important process. At high temperature, which reaches four hundred and fifty degrees, begins to occur disintegration of martensite, respectively, with him gradually begin to stand out from ultradispersed carbides of alloying elements. Over time, high alloy martensite begins to reduce the overall stiffness, but this part is insignificant.