Many people, even indirectly not related to metal production, are more likely to have heard of a material such as stainless steel. But due to the fact that not all of us even have superficial knowledge in the field of metallurgy, stainless steel is sometimes attributed to amazing, but far from reality properties.
For the purpose of enlightenment, this article was written that describes one of those steels that are proudly called “stainless steel”. On the agenda is steel 30x13, characteristics, application and a few other important aspects that are definitely worth paying attention to.
Appointment
The first thing you should start your acquaintance with is the use of 30 x 13 steel, the characteristics of which will be described later. After all, knowing what it is intended for, it will be easier for you to understand everything that will be discussed below.
So, steel 30 x 13 is a steel corrosion-resistant, heat-resistant, high alloy. Most often, parts that work in an aggressive thermal environment are made from it, however, quite household tools can also be made of 30x13 steel, the characteristics benefit.
Here is a short list of products that can be made from it:
- springs for various purposes;
- compressor parts;
- carburetor needles;
- measuring tool;
- everyday use tools for which corrosion resistance is important;
- surgical instrument.
However, on an industrial scale, 30 x 13 is also found in the form of sheets, wire, rods, reinforcement, and a number of metallurgical products.
Steel 30x13 - GOST
Now you can move on to a closer acquaintance. For many, it is no secret that steel is essentially an alloy of iron and carbon. However, this type of “pure” steel does not meet the requirements presented to it in many respects (GOST 1133-71, 18143-72, etc.). In order to improve the situation, additional impurities are introduced into its composition in the form of various chemical elements, which additionally improve the quality of the resulting alloy and give it some properties.
For steel 30 x 13, the composition of the impurities is as follows:
- 0.3% carbon;
- 13% chromium;
- 0.8% silicon;
- 0.8% manganese;
- 0.2% titanium;
- 0.3% copper;
- 0.6% nickel;
- 0.025% sulfur;
- 0.03% phosphorus.
To a person unfamiliar with the basic properties of alloying elements, this list is likely to be incomprehensible. But in this case, the main impurities that determine the characteristics of 30 x 13 steel are carbon, which, due to its relatively low content in the overall composition, makes the steel harder, but does not reduce its elasticity, and chrome significantly increases resistance to corrosion. Silicon and manganese in the composition play the role of supporting posts, since their content improves the overall wear resistance and strength of the alloy.
Analogs
Steel with identical or similar properties is not uncommon in metallurgy. Often the same steel grade can carry several names. This is often explained by the fact that in different countries there is a different system for naming steels and alloys. Thus, steel-analogues, equal in their characteristics to steel 30x13, bear the following names:
- in the USA - 420 or 420F;
- in Japan - SUS420J2;
- in Europe - 1.4028 or X30Cr13;
- in China - 3Cr13.
Thus, steel 30 x 13 is available in foreign markets. And this is clear evidence that such steel is currently in high demand.