Q550C Q550D Q550E steel plate yield strength

Q550C, Q550D and Q550E steel plates are low alloy high strength steel plates, and also quenched and tempered steel plates.

Analysis of Q550C, Q550D and Q550E steel grades: Q represents yield strength, and 550 represents yield strength value, in MPa; C represents that the quality level is C (the level is divided into C, D and E). So Q550E steel plate means an E grade steel plate with a yield strength of 550 Mpa.

Q550C, Q550D, Q550E steel plate technical conditions:
Of course, when the purchaser needs the steel plate with thickness direction property, he can also add a symbol representing the thickness direction, that is, the Z-direction property level, after the above specified grade, such as Q550C-Z15, Q550C-Z25, Q550C-Z35, Q550D-Z15, Q550D-Z25, Q550D-Z35, Q550E-Z15, Q550E-Z25, Q550E-Z35.