Seamless steel pipe refers to the steel pipe made of a whole piece of metal without joints on the surface. According to the production method, it can be divided into hot rolling tube, cold rolling tube, cold drawing tube, A573 Gr 70 steel sheet, extrusion tube and spinning tube. According to the shape of the section, it can be divided into two types: circular and irregular. The seamless tube has a maximum diameter of 650 mm (expanding tube) and a minimum diameter of 0.3 mm (capillary tube), which can be divided into thick walled tube and thin walled tube according to the thickness.
A573 Gr 70 steel 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 characteristic of niobium in A573 Gr 70 steel sheet etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.
Medium and thick steel plates are widely used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and so on. However, each project has different requirements for plate size. How to cut A573 Gr 70 steel sheet, medium and thick steel plates? There are many ways, for example, flame cutting, laser cutting, wire cutting, plasma cutting, ultra-high pressure water cutting and so on.
