nm500 grade material can stand the test

RAEX400 steel is a hardened wear-resistant steel material with an average grade of 400HBW and a Brinell hardness. The microstructure of this wear-resistant steel is a martensite structure, which can ensure the high hardness and tensile hardness of the steel plate. The hardness of RAEX400 is 2.5 times that of S355 structural steel, NM500 grade material. Despite its high hardness and high strength, RAEX400 steel can be formed by free bending or hemming, and has good weldability.

The company specializes in the research and development, production and sales of NM500 grade material seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and large-diameter thick-walled straight seam steel pipes. The company has NM500 grade material five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,NM500 grade material rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.

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 NM500 grade material are higher than that of annealed NM500 grade material, but the elimination of internal stress is not as good as annealing. The normalizing operation of NM500 grade material is simple, the cost is low, the productivity is high, and it is widely used in actual production.

Molybdenum is a well known alloy element. Molybdenum can refine the grains of steel material, improve the hardenability and thermal strength, and maintain sufficient strength and creep resistance at high temperature. Adding molybdenum to NM500 grade material, structural steel can improve mechanical properties. Molybdenum can also restrain the brittleness of alloy steel caused by quenching treatment.

Customer first, reputation first, high-quality and perfect after-sales service is the extension of our product value and an important guarantee for the interests of customers. The purpose of our NM500 grade material service quality management system is to establish and constantly improve a scientific, reasonable and efficient service quality management system, and complete the after-sales service quality guarantee work of customers fairly, accurately and timely, For our company's NM500 grade material customer service to establish a good, comprehensive, full service system.