Q355GNH weathering steel is a kind of atmospheric corrosion resistant steel, which has better corrosion resistance than ship construction use A131 AH32 structural steel, ordinary carbon steel by adding less alloy elements. Q355GNH weathering steel has been widely used in container, railway vehicle, bridge, building and air preheater which need to be resistant to atmospheric corrosion. Q355GNH weathering steel is characterized by the addition of less Cu, P, Cr, Ni and other alloy elements in the steel, so that a dense amorphous spinel type oxide layer with a thickness of about 50-100μm is formed between the rust layer and the base metal, which can prevent oxygen and water from penetrating into the steel matrix, slow down the development of corrosion to steel materials, and improve the atmospheric corrosion resistance.
Compared with carbon steel, low alloy steel has many advantages, such as high strength, good plasticity and toughness, good weldability, good cold and hot pressure processing performance, better corrosion resistance, etc. Due to the increase of ship construction use A131 AH32 structural steel metal composition, the yield point of low alloy steel structure is higher than that of ordinary carbon steel, so it is light and suitable for structural parts application. The low alloy steel is one of our main products.
The steel plate cutting and processing instructions are as follows: steel plate cutting and steel plate cutting processing, as well as ship construction use A131 AH32 structural steel steel plate zero cutting processing. There are semi-automatic flame cutting, fully automatic CNC cutting, laser cutting and water cutting. The thickness range of steel plate that can be cut is 20650mm. In terms of ship construction use A131 AH32 structural steel steel plate cutting types, there are Q235B common plate, Q345B low alloy plate and 45 carbon bonded plate.
We have a professional production team and high-quality production equipment, and we also have a great ship construction use A131 AH32 structural steel advantage in price, with its own factory, large-scale production to reduce the price. Strictly control each production line to ensure the ship construction use A131 AH32 structural steel production of high-quality steel plates, steel pipes and other products that meet customer requirements.
Customer first, reputation first, high-quality and perfect after-sales service is the extension of our product value and an important guarantee for the interests of customers. The purpose of our ship construction use A131 AH32 structural steel service quality management system is to establish and constantly improve a scientific, reasonable and efficient service quality management system, and complete the after-sales service quality guarantee work of customers fairly, accurately and timely, For our company's ship construction use A131 AH32 structural steel customer service to establish a good, comprehensive, full service system.
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