Heat treatment process and purpose of impact resistance of nm400 steel plate

The company adopts modern management concept, adheres to “quality for survival, integrity for development”, and provides customers with high-quality and reliable impact resistance of NM400 steel plate steel products and wholehearted service. The company continuously deepens the internal reform of the enterprise, innovates in the reform, develops in the innovation, and gradually forms a set of management and operation mechanism which adapts to the market and has strong competitiveness.

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 impact resistance of NM400 steel plate, 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.

EN10083-3 27MnCrB5-2 steel plates usually need quenching and tempering are special application. Up to now, EN10083-3 27MnCrB5-2 steel plates are mainly applied in airplane, guided missile, weapons, railway, bridges, ships, vehicles, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on fields.

Normalizing is to heat the steel parts to 30~80℃above the critical temperature for a period of time. Then the parts are taken out of the furnace and cooled in air. Since the cooling rate of normalizing is faster than that of annealing, the strength and hardness of normalized impact resistance of NM400 steel plate are higher than that of annealed impact resistance of NM400 steel plate, but the elimination of internal stress is not as good as annealing. The normalizing operation of impact resistance of NM400 steel plate is simple, the cost is low, the productivity is high, and it is widely used in actual production.

impact resistance of NM400 steel plate, Grade P295GH chemical composition under EN10028-2:2003 is displayed as follows. Chemical composition (C: 0.08 to 0.20; Cr: ≤0.30; Si: ≤0.40; Cu: ≤0.30;Mn: 0.90 to 1.50; Mo: ≤0.08;P: ≤0.025; Nb: ≤0.020;S: ≤0.015; Ni: ≤0.30;Al: ≤0.020; Ti: 0.03; N: ≤0.012; Vi: ≤0.02). The yield Strength MPa (min) of P295GH steel plate with thickness less than 16mm is 295MPa, and the tensile strength is 460-580MPa.

Adhere to the spirit of quality first and user foremost, carry out maintenance and other work according to the requirements of the buyer's contract, and ensure that the engineering project and product after-sales play their application effectiveness. Our company guarantees to carry out self inspection and self supervision according to the quality management policy proposed by our company, and deliver a high-grade, perfect and excellent system engineering to users.