Flat steel refers to steel with a width of 12-300mm, a thickness of 3-60mm, a rectangular cross-section and slightly blunt edges. Flat steel can be finished steel, or it can be used as a blank for welded pipes and a thin plate blank for rolled thin plates. Main uses: Flat steel can be used as finished products to make hoops, tools and mechanical parts, and used as frame structural parts and escalators in buildings.
Advantages
1. Flat steel is rolled with negative deviation, but delivered according to actual weight, and the utilization rate is 1 to 5 percentage points higher than that of steel plates.
2. Flat steel can be produced according to user needs, with fixed thickness, fixed width and fixed length, which reduces cutting for users, saves processes, reduces labor and material consumption, and also reduces processing losses of raw materials, saving time, effort and materials. The products have been professionally used in steel structure manufacturing, machinery manufacturing, automobile industry, mining machinery, lifting machinery and other industrial materials.
Comparison
1. Special product specifications. The thickness is 8-50mm, the width is 150-625mm, the length is 5-15m, and the product specifications are close, which can meet the needs of users. It can replace the medium plate and can be directly welded without cutting.
2. The surface of the product is smooth. The high-pressure water descaling process is used twice in the process to ensure the smooth surface of the steel.
3. The two sides are vertical and the corners are clear. The two vertical rolling in the finishing rolling ensures the verticality of the two sides, the corners are clear, and the surface quality of the edges is good.
4. The scale of the product is accurate, the three-point difference and the same-grade difference are better than the steel plate standard; the product is straight and the plate shape is good. The finishing rolling adopts the continuous rolling process and the automatic looper is automatically controlled to ensure that there is no steel piling or pulling. The product size accuracy is high, and the tolerance range, three-point difference, same-strip difference, sickle bend and other parameters are better than the medium plate, and the plate shape is straight. Cold shearing, high length sizing accuracy.
5. The product material adopts the national standard, the same as the steel plate. The quality and technical standards are organized for production in accordance with YB/T4212-2010 standard (Q345B/Q235B refer to GB/T1591-94 and GB/T700-06 standards respectively).