25Mn steel and 30Mn steel are two types of steels that are used in many different ways. 25Mn steel and 30Mn steel are both medium carbon steels, with the majority of their weight coming from iron. 25Mn steel contains 0.25-0.32% manganese and 0.30-0.90% carbon, and is named because of its manganese content. 30Mn steel contains 0.30-0.38% manganese and 0.70-1.00% carbon, and is also named because of its manganese content.
The most common application for 25Mn steel is in the production of shafts and crankshafts. It is also used in the production of bearings and bushings. It is a hard steel and is also used for connecting rods, gears and tools. 25Mn steel is used in military applications and for items such as tank tracks, rifled gun barrels and gun mountings.
30Mn steel is mainly used in the manufacturing of shafts. It is also used in the production of axles, crankshafts and aircraft components. It is likewise used in transmissions, such as manual and automatic, as well as some specialized gearboxes. This steel is common in oil and gas production and is often used in hydraulic equipment, such as pumps and hydraulic valves. 30Mn steel can also be found in railcar components, industrial machinery and some large cutting tools and dies.
Both 25Mn steel and 30Mn steel are medium carbon steels. The properties of these steels vary depending upon the heat treatment and alloying elements used. However they generally have high strength, good hardness and wear resistance, medium ductility and good machinability. Both 25Mn steel and 30Mn steel are not corrosion resistant and should be coated or plated for any application that will be exposed to harsh environments.
25Mn steel and 30Mn steel are capable of a variety of different uses. These two types of steel are strong, wear resistant and machinable, making them ideal for a variety of applications. They are used in the manufacturing of a range of goods, from shafts and bearings to gun mountings and transmissions. Both 25Mn steel and 30Mn steel should be coating to protect against corrosion, ensuring that they can stand up to a range of environments.
