High quality NV A32 bulk carrier steel with heat treatment test

We just exported 1500 tons NV A32 bulk carrier steel, LR grade A hull structure steel plates to Brazil. The customer is introduced by our old customer who used to work for the DETROIT BRASIL LTDA, a famous ship yard in Brazil. They regard us as their Chinese agent, they will inform us no matter when they purchase steel materials from China, if we can not supply the goods, we will inspect the goods for them before the shipment.

"Our mill has three production lines:1).2500mm production line (Width: 1600-2300mm, NV A32 bulk carrier steel Thickness: 6-30mm, Annual capacity: 1,600,000 Tons; 2).3500mm production line (Width: 2000-3050mm, Thickness: 10-80mm, Annual capacity: 2,000,000 Tons; 3).4300mm production line (Width: 1500-4100mm, Thickness: 6-300mm, Annual capacity: 1,800,000 Tons; The weight of each ingot can reach NV A32 bulk carrier steel 44 tons, which is at the leading level in China. In addition, we have a 1700mm hot-rolled coil production line (width range: 900-1550mm, thickness range: 1.2-25.4mm, annual NV A32 bulk carrier steel production capacity: 3.5 million tons."

Hot rolling and cold rolling are all the processes of forming steel plates or profiles, which have a great influence on the structure and properties of steel. The rolling of steel is mainly hot rolling, and cold rolling is usually used to produce small size steel and thin plate. With the development of new technologies such as the precision of hot rolling size, shape and surface quality and the continuous emergence of new products, NV A32 bulk carrier steel, hot rolled steel strip and steel plate are widely used and have more and more competitive strength in the market.

Fake and inferior steel plates are easy to scratch because of the simple equipment of the manufacturers of fake and inferior materials, which are easy to produce burrs and scratch the surface of the steel plate. Deep scratches reduce the strength of the NV A32 bulk carrier steel, steel plate. The surface of the fake and inferior material is prone to cracks, because its billet is adobe, which has many pores. The adobe is subjected to thermal stress during the cooling process, and cracks are generated, and there will be cracks after rolling.