Hot rolled hr plate thickness of steel nm450 15mm plate with high quality

In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and thickness of steel NM450 pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.

thickness of steel NM450 2020 stock in Tianjin: 7*2920*8200, 32*3000*7440, 14*2150*9300, 16*2200*10000, 12.5*2900*11000, 7*2920*8200, 14*1950*11000, 80*2200*10000, 16*2230*7650, 7*2920*8780, 32*2900*9700, 20*1950*9550, 10*2200*7200, 23.1*2590*7790, 20*1400*11400, 20*1950*9700, 7*2920*8780, 20.9*2851*7000, 25*1600*9300, 30*2200*9000, 14*1950*10550, 30*1600*8600.

thickness of steel NM450, Wear resistant steel plate has good wear resistance:The chemical composition of the alloy wear-resistant layer is 4-5% carbon and 25-30% chromium. The volume fraction of Cr7C3 carbide in the metallographic structure is more than 50%. The macro hardness is HRC56-62 and the hardness of chromium carbide is HV1400-1800. Because the carbides are distributed perpendicularly in the direction of wear, even when compared with cast alloys of the same composition and hardness, the wear resistance is more than doubled.

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