NM400 steel equivalent European standard *
*NM400 steel is an alloy steel grade made of hot rolled steel plates under the Japanese JIS standards. It is equivalent to the European standard EN 10025-2 S355J2. The NM400 steel plates are widely used in engineering applications and have good weldability, formability and excellent toughness.
NM400 steel grades are manufactured using high-grade hot rolled steel plates, which are then cold-worked to obtain the desired form. To further strengthen the material's structure, the steel is then heat-treated by quenching and tempering processes. The tempering process gives NM400 steel its superior hardness, toughness, and wear resistance.
The NM400 steel plates offer superior corrosion resistance and wear resistance, thanks to its high alloy content of elements such as chromium, molybdenum, nickel, and copper. This alloy also provides NM400 steel with high thermal stability, so it can withstand temperatures of up to 300°C. The NM400 steel plates also possess superior strength and good cold formability. This makes them ideal for applications such as heavy-duty machinery and certain offshore operations.
NM400 steel is often used as the construction material of bridges, ships, power plants, and offshore structures. It is also used to manufacture wear parts for construction machines, such as bulldozers, loaders and excavators, as well as medical equipments and agricultural machinery gear teeth. Furthermore, NM400 steel can also be used as a structural material in pressure vessels, and in generating power, which requires a reliable, durable and high-performance material to work efficiently.
In terms of European standards, NM400 steel corresponds to standard EN 10025-2 S355J2. This features mechanical properties such as a yield strength of 355MPa and a tensile strength of up to 470MPa. NM400 steel plates also have excellent weldability and formability, making them an ideal choice for the fabrication of various products.
NM400 steel plates can be cut, welded and drilled easily and offer superior wear resistance, making them popular for various structural applications. They require less maintenance compared to other materials and have a longer service life. These advantages are the reasons why the NM400 steel plates are the preferred choice of many industries.




