What are the effects of phosphorus in A242 type 1 weathering steel plate

A242 type 1 weathering steel plate is an atmospheric corrosion-resistant steel plate, which is widely used in the construction industry. When smelting A242 type 1 weathering steel plate, a small amount of weathering elements are added into the molten steel to achieve corrosion resistance. Although these weathering elements can improve the corrosion resistance of A242 type 1 weathering steel plate, they will also affect the performance of A242 type 1 weathering steel plate with smelting temperature and amount. Therefore, the amount of these elements and smelting environment need to be strictly controlled.

 

A242 type 1 weathering steel plate is an economic low alloy high strength steel with a small amount of alloy elements and good corrosion resistance in the atmosphere. Phosphorus is one of the alloy elements to improve the atmospheric corrosion resistance of steel. Generally, when the content of phosphorus in the weathering steel reaches a certain level, it has better corrosion resistance, and phosphorus is easy to segregate, forming a "cold brittle" residual element. Qualitative analysis of the segregation behavior in A242 type 1 weathering steel plate with the increase of phosphorus content, and the law of the influence of niobium on it have a certain effect on the development of the weathering steel containing niobium The significance of the theory of certainty. With the increase of P content, the band structure becomes wider and the segregation becomes more and more serious; after tempering for a certain time, with the increase of tempering temperature, the segregation of phosphorus becomes more and more serious.

 

The above is the effect of phosphorus element under different conditions in smelting A242 type 1 weathering steel plate. If the temperature is not well controlled, there will be serious phosphorus segregation, which has a key impact on the performance of A242 type 1 weathering steel plate. BBN provides a variety of sizes of A242 type 1 weathering steel plate. From smelting to processing, it has undergone strict matching and production environment settings. The A242 type 1 weathering steel plate produced has good performance. If you need, you can contact us.