HRC hot rolled Q355GNH Q415NH Q460NH weathering steel density

Because the Q355GNH Q415NH Q460NH weathering steel product cutting parts are smooth and beautiful, the surface quality is good, and the dimensional accuracy is high, its mechanical properties and process performance are better than hot-rolled thin steel plates, and it is widely used. Before leaving the factory, both sides of the steel plate are coated with neutral grease to prevent rust.

Welded pipe, also known as welded steel pipe, refers to the steel pipe made of steel plate or strip steel after crimping and forming, with a fixed length of 6 meters. The production process of welded steel pipe is simple, the production efficiency is high, the varieties and specifications are diversified, and the equipment investment is less, but the general strength is lower than that of seamless steel pipe. Q355GNH Q415NH Q460NH weathering steel, Welded pipes have many uses and are almost ubiquitous in our lives. However, when choosing welded pipes, we must pay attention to performance and material characteristics.

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Chemical composition of Q355GNH Q415NH Q460NH weathering steel, Q420qENH steel plate:
Carbon C: not more than 0.11, silicon Si: 0.15-0.50, manganese Mn: 1.10-1.50, niobium Nb: 0.01-0.1, vanadium V: 0.01-0.1, titanium Ti: 0.006-0.03, chromium Cr: 0.40-0.70, nickel Ni: 0.30-0.40, copper Cu: 0.25-0.50, molybdenum Mo: not more than 0.20, nitrogen N: not more than 0.008.