SM490B carbon steel plate sheet Price in Finland 2021

SM490B carbon steel plate sheet, Q345C low alloy structural steel plates stock and size available: 13*2600*3800, 11*2890*3950, 14*1580*4700, 15.1*1600*3300, 14*1820*3050, 32*3200*2950, 11*2530*2450, 14*2000*3400, 12.7*2320*13200, 14*2720*3300, 32*2000*2950, 11*2250*2700, 26*1830*3650, 6*1800*4000, 14*1850*3350, 36*1700*2800, 12*3770*6600, 32*1900*3500, 15*1050*10000, 12.5*2810*3750, 33*1500*3200, 45*1800*2650, 65*1700*2600 (mm).

The basic phases of SM490B carbon steel plate sheet, structural steel in the annealed state are ferrite and carbide. The alloy elements are dissolved in ferrite to form alloy ferrite, which depends on solid solution strengthening to increase strength and hardness, but at the same time reduce plasticity and toughness. The addition of alloying elements reduces the carbon content of the eutectoid point, which increases the proportion of pearlite in the structure and reduces the distance of the pearlite layer. This also increases the strength of the steel and reduces the plasticity.

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As the thickness and hardness of SM490B carbon steel plate sheet increase, the tendency to crack at the cutting edge increases. In order to prevent the SM490B carbon steel plate sheet from cutting cracks, preheating should be carried out before SM490B carbon steel plate sheet cutting. Special attention should be paid to preheating to make the entire SM490B carbon steel plate sheet interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole SM490B carbon steel plate sheet cannot be preheated, the partial preheating method can be used instead.