The technological means to improve the performance of ASTM A572 Grade 50 structural HSLA steel plate

ASTM A572 Grade 50 structural HSLA steel plates enjoy excellent comprehensive properties with lower alloy composition. A572 Grade 50 plates combine high strength and toughness, the compatibility of weldability and machinability well.   

The contradiction between low alloy composition and high performance requirements requires technological means to improve the performance of ASTM A572 Grade 50 structural HSLA steel plates as much as possible. The method adopted is to improve the comprehensive properties of ASTM A572 Grade 50 structural HSLA steel plates by adding a small amount of one or more alloy elements.

The technological means to improve the performance of ASTM A572 Grade 50 structural HSLA steel plates are to improve the purity of ASTM A572 Grade 50 structural HSLA steel plates and to control the content of carbon and alloying elements in the appropriate range; to control the form of inclusions; to improve the structure of ASTM A572 Grade 50 structural HSLA steel plates, improve the strength and toughness etc. comprehensive properties., etc.

It is of great significance to improve the purity of ASTM A572 Grade 50 structural HSLA steel plates. Because the alloying element content of low alloy and high-strength steel is usually low, and some of them are even stimulated. Only by removing impurity elements in ASTM A572 Grade 50 structural HSLA steel plates thoroughly, can alloy elements play a full role.