What are the porposes of quenching and tempering of Q235NH railway steel sheet

After the steel plate is produced from the original factory, it will pass through a series of transportation and storage links and then be delivered to the processing workshop. During this period of time, the steel plate surface will contact with the air continuously, which will inevitably produce a layer of oxide skin. The oxide skin is a difficulty in the treatment process. It has high melting point, is not easy to burn and dissolve, increases preheating time, reduces cutting speed. Therefore, the surface of the Q235NH railway steel sheet plate should be derusted before cutting.

The production process of weathering steel plate is complicated, which is also the key to guarantee its good performance. Through special production and processing technology, we can better apply Q235NH railway steel sheet, weathering steel plates to various fields. Like some home landscape design, we can see the different charms of weathering steel plates. Weathering steel plates are also used in the construction field. Weathering steel plates can be used to make stairs and walls, and have good practical effects.

"Turkey has filed a lawsuit against EU steel import tariffs with the world trade organization, the trade ministry said Friday. In February 2019, the European Union said that the sharp increase of Turkish steel imports Q235NH railway steel sheet seriously threatened the steel producers in member countries. The European Union has set import quotas for 26 kinds of steel products and imposed a 25% tariff on future steel products for three years.

Facing the new situation and facing new goals, the company revolves around the sixteen-character development policy of “prioritizing production preservation, society-oriented, market operation, and brand creation and efficiency”. Layout the country in accordance with the modern logistics model, and accelerate the establishment of a modern integrated steel enterprise integrating steel storage, transportation, processing, and distribution.