Stock JIS carbon steel SM490YB CS plate in china

Q420B material is a low-alloy high-strength structural steel. JIS carbon steel SM490YB CS plate, Q420 is not high-strength steel, it is still low-carbon steel. Its tensile strength has been improved a bit. The tensile strength of Q235 steel is 235MPa, and the tensile strength of Q420B steel is 420MPa. Q420B low alloy steel has high strength and good fatigue resistance; high toughness and low brittle transition temperature; good Cold forming performance and welding performance; has good corrosion resistance and certain wear resistance.

The mooring chain is immersed in seawater for a long time and the service environment is harsh. Therefore, it must have high strength, good toughness, seawater corrosion resistance, fatigue resistance, wear resistance, etc., and in practical applications, it usually needs to be bent into a ring. Therefore, it is necessary to have good cold bending and welding performance. At present, China has successfully developed the world's first R6 mooring with the highest strength level, and realized its application, leading the development of the latest generation of marine mooring chains.

Available steel plate types: JIS carbon steel SM490YB CS plate, carbon structural steel plate, low alloy high strength steel plate, bridge steel plate, building structural steel plate, shipbuilding and offshore platform steel plate, boiler and pressure vessel steel plate, mold steel plate, alloy structural steel plate, oil and gas transmission pipeline steel plate, high strength and high toughness steel plate, corrosion-resistant steel plate, composite steel plate, wear-resistant steel plate, etc.

According to South Korea newsis reported on March 12, Korea iron and steel association statistics show that in February, South Korea's domestic JIS carbon steel SM490YB CS plate steel exports to 2.44 million tons, down 2.4 percent year on year, after January down 3 percent, the second consecutive month of decline. In the past three years, South Korea's steel exports have decreased year by year, from 31.67 million tons in 2017 to 30.44 million tons in 2018 and 30.38 million tons in 2019. Instead, South Korea's JIS carbon steel SM490YB CS plate steel imports increased last year. As China's economy slows and steel prices fall, Chinese steel is pouring into South Korea, analysts say.