"Gold nine silver ten" has become the common language used by businesses in various industries to describe the annual sales season. It has become a rule that low alloy steel plate industry occurs every three years. 16Mn is the steel grade of low-alloy high-strength steel consumption and low-alloy steel production in China's alloy steel industry. The microstructure under service condition is fine-grained ferrite-pearlite, its strength is about 20%~30% higher than that of ordinary carbon structural steel Q235, and its atmospheric corrosion resistance is 20%~38% higher. 15MnVN is a steel used in many medium-strength steels. It has high strength, good toughness, weldability and low temperature toughness, and is widely used to manufacture bridges, boilers, ships and other large structures.
Generally speaking, the low alloy plate on the market is Q345B plate. Alloy steel is divided into low alloy steel, medium alloy steel and high alloy steel.
We see that many architects choose exposed steel structures because they want to get a uniform appearance of atmospheric oxidation on the steel surface, and sometimes it is to save coating to achieve economic purposes. When using low alloy plate in the exposed state, the steel surface must not be wet for a long time in the design, and special attention should be paid to the special atmospheric environment to ensure that the corrosion rate of steel is allowed under this condition.
