How to visually distinguish whether it is hot rolled or cold rolled Q355NH tower steel

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How to visually distinguish whether it is hot rolled or cold rolled Q355NH tower steel

We have gradually formed four advantageous products of steel plate, steel pipe, Q355NH tower steel, stainless steel and special steel, and established our own processing center to meet the diversified needs of customers. At the same time, we also set up professional environmental protection, baby carriage and other projects. With the professional team and strong background of steel plate, steel pipe, stainless steel and special steel, it will drive the rapid development of other projects.

India began to implement the national blockade measures on March 25. After two extensions, the national blockade measures have been implemented for nearly 50 days, which has a huge impact on the Q355NH tower steel economy. To that end, modi said in a televised speech on the evening of the 12th that India will launch a total of 20 trillion Indian rupees one point eight eight Trillion yuan).

Hot rolled Q355NH tower steel product stock size: 12*1600*91000, 25*1950*10250, 25*1950*10150, 14*2000*10000, 12*1600*10000, 16*1500*9340, 60*2020*6100, 25*1950*9700, 14*2000*13500, 75*2390*4320, 16*1500*9340, 50*2740*13460, 20*2100*10700, 20*2500*6200, 60*1750*9100, 34*1900*12000, 12*2050*5100, 45*2010*10000, 25*2100*8650, 70*2270*7600, 16*1500*9340, 6*1950*10000, 30*2000*7630, 20*2100*11600, 70*2260*7950, 34*1900*12000.

Q355NH tower steel, A588 GrB steel has high atmospheric corrosion resistance by alloying with Cu, P, Cr and Ni to form a protective layer on the surface of metal matrix. A588 GrB steel is widely used in various weather resistant building structural parts (especially in industrial atmospheric environment), bridge auxiliary structural parts and so on. Chemical composition of A588 GrB steel: C: ≤ 0.20, Si: 0.15-0.50, Mn: 0.75-1.35, P: 0.040, S: 0.050, Cr: 0.40-0.7, V: 0.01-0.10, Ni: ≤ 0.50, Cu: 0.20-0.40.

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