The difference between low alloy Q355D and Q355ND materials
Q355D is a low-alloy high-strength structural steel plate for general structures and engineering. The implementation standard is: GB/T1591-2018. The name of the steel plate consists of the first letter Q in Chinese pinyin representing the word "yi" for yield strength, the specified minimum upper yield strength value, the intersection Cargo status code, quality grade (B, C, D, E, F) four parts Q355ND is a kind of low alloy structural steel.
Q355ND is not only strong, it is also low carbon steel. Q355ND has high strength and good performance; high toughness and low brittle transition temperature; good cold forming performance and welding performance; good corrosion resistance and certain wear resistance.
The implementation standard of Q355ND is GB/T1591-2018. Q355ND is a -20 degree impact, where "Q" means yield strength, 355 means that the yield strength of this steel is 355MPa, and D is the quality grade.
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