Fergana polytechnic institute faculty of mechanics and mechanical engineering e18-21 tmj group studentpresentation project prepared by tolashev otabek from materials. Science checked by: Akhrorov A

3. Steel is the main material used in machine building. Ultra or very high carbon steel: Although a very strong metal, this material is brittle and requires special handling. It contains 0.96% to 2.1% carbon. Through alloying, ultra-high carbon steel becomes one of the most durable carbon steels on the market. Often used for truck springs, metal cutting tools or knivesThe highest thermal conductivity among ordinary carbon steels. It can have the lowest tensile strength and moderate ductility. Excellent weldability. Machine parts, tie rods, relatively low strength structural applications, mounting plates and brackets

4.References.

1.Ilkhom Nosir “Materialshunoslik”

2. U.A. Ziyamukhammedova "Materialshunoslik"

3. Wikipediya.uz

4. Ziyo.net