Difference between Q345 and 16Mn Steel
Q345 and 16Mn steel are two grades of Chinese steel products that are gaining international recognition and control. The 16Mn steel grade, which has the material number of 1.1035 and the abbreviation of 16Mn, is a hot rolled low alloy steel made up of manganese, chromium, and silicon. The Q345 steel grade, which has the material number 1.0045 and the abbreviation of Q345, is a hot rolled structural steel made of chromium, manganese, and other alloying elements. The key difference between Q345 and 16Mn steel is in their composition and production process.
The 16Mn steel grade is generally used in the construction sector for structural steel fabrication. It is a medium and low alloy steel that does not require heat treatment to gain its properties and strength. The 16Mn steel grade is made up of iron, manganese, silicon and chromium elements, and it can be used in applications requiring parts with good strength, at a moderately high temperature and a good weldability.
The Q345 steel grade is used in general fabrication and construction. This grade of steel is also used in the structural industry for steel frames, bridges, ships, vehicles, and other construction components. The Q345 steel grade is typically made up of chromium, manganese, and other alloying elements, and it usually requires heat treatment to achieve its strength and properties. The steel has a higher yield strength and toughness than the 16Mn grade, and it is also less brittle than this grade of steel. Compared to the 16Mn steel, the Q345 grade of steel is more weldable, and it typically requires fewer weld passes to achieve similar weld strength and performance.
In conclusion, the Q345 and 16Mn steel grades are two of the most popular Chinese steel products available on the market. The main difference between these two grades of steel is in their composition and production process, with the Q345 grade of steel having more chromium, manganese, and other alloying elements than the 16Mn grade. Additionally, the Q345 steel grade typically requires heat treatment to achieve maximum strength, whereas 16Mn does not require heat treatment for gaining its properties and strength.
