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ASTM A588 Grade C steel containing copper often suffers from electrical cracking problems during the production process. Cracks in copper-containing ASTM A588 Grade C steel sheets are commonly observed during high-temperature heating and rolling of the bi
ASTM A242 Type1 steel is widely used in railway, construction, bridge and other fields. Its alloy composition contains a small amount of copper, brocade, Ming and other elements, and a dense protective film will be formed on the surface during use to prev
When the A588GrA steel is heated at a higher heating temperature than the Q235B steel, the temperature of the soaking section is 1240 ~ 1260 ℃, and the slab descaling effect is better at this time. The air-fuel ratio is controlled between 0.5 and 0.7, whi
When the ASTM A588GrA steel slab is heated at high temperature, the copper oxide remaining in the heating furnace is reduced to free copper at high temperature, and the molten copper atoms expand along the grain boundaries of the slab structure, weakening
The key to the atmospheric corrosion resistance of ASTM A 709 Gr.50W weathering steel is the protective rust layer on the outside of the steel matrix, whose physical and chemical properties determine the resistance to atmospheric corrosion.
The chemical composition and mechanical properties of the hot-rolled thick Q345qDNH weathering steel sheet meet the requirements of GB/T 714-2015. C. The content of S. P is low and the crack sensitivity coefficient is small, which is beneficial to improve
According to the coiling characteristics of ASTM CortenA steel, the tail and middle part of ASTM CortenA steel were sampled for metallographic analysis. After grinding and polishing, the sample was corroded with 4% nitric acid alcohol, and its metallograp
ASTM A588 Grade A weathering steel, also known as atmospheric corrosion resistant steel, is adopted in ordinary steel. A low-alloy steel made by adding a certain amount of alloying elements, the main alloying components are Cu, P, Cr, Ni and other element
Chemical composition and technological process Weathering steel S355J0W implements the European standard EN10025-5, and considers the mechanical properties and low temperature impact properties of the steel strip, and has made strict internal control regu
The chemical composition design principle of A588 Grade A weathering steel plate is to reduce the addition of various alloying elements as much as possible on the premise of ensuring the strength, toughness, weathering resistance and composition requireme