20MnTiB Alloy Steel
20MnTiB alloy steel is a kind of low alloy structural steel with good cold formability and relatively low cost, which has been widely used in the past 100 years. 20MnTiB alloy steel has better mechanical properties and excellent heat treatment properties. It has higher strength, good cold plasticity, good toughness, and weldability, and can be used for manufacturing high-strength parts such as automotive components, shafts and spindles, etc.
20MnTiB alloy steel is available in the form of hot-rolled, forged and cold-rolled. It has a carbon content of 0.2-0.41%, a silicon content of 0.15-0.25%, a manganese content of 0.80-1.05%, a nickel content of 0.15-0.25%, and a chromium content of 0.18-0.35%. In addition, it contains molybdenum, titanium and boron. These elements provide 20MnTiB alloy steel with excellent quenching and tempering properties.
20MnTiB alloy steel has excellent mechanical properties, with a yield strength of 560-600MPa, a tensile strength of 750-900MPa, and an elongation of 10-12%. In addition,it has good weldability, and after welding, it maintains its strength and elasticity, excellent wear resistance and low tackiness. In particular, 20MnTiB alloy steel can be operated without the need for preheating and heating, which makes it an ideal choice for many mechanical components.
20MnTiB alloy steel can also be used to manufacture various components used in industrial tools and machinery, such as gear reducers, gear boxes, machine tools, tower structures, structures, and wind turbines. In addition, 20MnTiB alloy steel is also used in the manufacture of automotive components, including chassis and springs, as well as nuts, bolts and other fasteners.
One of the most important advantages of 20MnTiB alloy steel is its high wear resistance. This is due to the presence of hard particles, which makes it difficult for wear and tear to occur. The overall hardness of 20MnTiB alloy steel is greater than that of ordinary low alloy steels and is particularly suitable for parts with high strength requirements, such as shafts, gears, bearings and rollers.
20MnTiB alloy steel also has good corrosion resistance, especially in humid environments. This is due to the presence of chromium and other alloying elements, which can form a protective film on the surface of the steel and reduce the rate of corrosion. In addition, 20MnTiB alloy steel is resistant to high temperature and thermal fatigue, making it suitable for applications such as steam turbine blades and other high-temperature components.
In summary, 20MnTiB alloy steel is an excellent low-alloy steel with good cold formability and relatively low cost, that can be used in a wide range of mechanical components and tools. It has impressive mechanical properties, good weldability, excellent wear resistance and corrosion resistance, and resistance to thermal fatigue.
