What are the differences between black and painted usage of nm450 sheet

Our company was founded in 2000, which initially committed to providing high-quality steel usage of NM450 sheet products for China's rapid infrastructure construction. With the advantages of steel resources and good reputation in the domestic market, combined with the huge demand for steel in the international market, we began to export usage of NM450 sheet steel to the international market, opening up the international steel market.

GB / T1591 Q345D steel is a commonly used low alloy plate in China. It is equivalent to grade S355J2 in Germany and ASTM A529MGr50 in the United States, with slightly different chemical composition and the same mechanical properties. Under normal delivery conditions, usage of NM450 sheet, Q345D steel equivalent to S355J2G3 in European standard, and even almost the same performance as the S355J2G4. They can be used interchangeably.

The clad steel plate is based on carbon structural steel, which is sprayed with stainless acid resistant and heat-resistant steel on the surface. The clad steel plate is widely used to make acid and alkali resistant container. Advantages of clad steel plate: The appearance of the clad steel plate is very smooth, the quality is very good, and it will not rust. Disadvantages of clad steel plate: the usage of NM450 sheet, clad steel plate has better requirements for production technology and are more expensive.

The common delivery status of usage of NM450 sheet, SA516 Gr 70 plate is as follows: 1) SA516 Gr 70 plate quenching: the process of rapid cooling after heating to the temperature above the phase transformation point. 2) SA516 Gr 70 plate normalizing: after heating above the phase transition temperature, it is cooled normally (in air). 3) SA516 Gr 70 plate annealing: heating to above the phase transition temperature, cooling slowly. 4) SA516 Gr 70 plate tempering: after quenching, it is heated to a certain temperature (lower than the quenching temperature), kept warm, and then cooled.

BBNsteel shipbuilding steel plate usage of NM450 sheet for sale: 17*1640*9880, 17*2050*6000, 15.5*2800*8200, 16.5*2770*7200, 17*2790*5700, 19.5*2980*5300, 17.5*1550*8100, 16.5*1500*8750, 18*1500*7000, 17.5*3100*6350, 20*2880*5830, 17.5*2000*10000, 17*2970*6200, 18*1500*7230, 18*2450*5500, 17.5*2320*13000, 17.5*1750*10400, 18*2810*4200, 18*2520*5000, 20*3000*7500, 18.5*2600*10800.

The company will rely on its good reputation, excellent hot-rolled plates, steel pipes, steel structure products, and intimate usage of NM450 sheet after-sales service to customers. I would like to express my heartfelt thanks to the old and new friends and customers who have always given care, support and help to the company! The company sincerely hopes to establish a long-term cooperative relationship with them, mutual benefit and common development. Welcome to come and visit our usage of NM450 sheet steel mill.

Provide special product requirements to meet the personalized needs of customers. The usage of NM450 sheet company arranges production and shipment strictly according to the contract, and guarantees to supply goods according to the time agreed in the contract. Provide professional consultation: we guarantee to answer any professional and usage of NM450 sheet technical questions raised by users within 1 hour; provide detailed information.